Industrial Machinery & Equipment - Others

Why Crack Detection Matters in ERW Pipes？ ERW pipe manufacturing involves forming steel coils into a cylindrical shape and welding the edges using high-frequency electric currents. While this process is highly efficient, the weld seam is a critical area that requires rigorous monitoring. Proper crack detection in ERW Pipes to prevent: Leaks and Pressure Loss: Vital for hazardous fluid transportation. Structural Failures: Especially under high-pressure or corrosive environments. Project Delays: Costly replacements are avoided through proactive NDT (Non- Destructive Testing). Industry-Standard Crack Detection Methods in ERW steel pipe We Utilize To guarantee the reliability of our products, we employ a multi-layered testing approach: Ultrasonic testing is the backbone of our weld seam integrity program. By sending high-frequency sound waves through the material, we can detect internal flaws that are invisible to the naked eye. How it works: Sensors detect the “echo” of sound waves as they bounce off defects like cracks, inclusions, or lack of fusion. Why it’s vital: It allows for the detection of subsurface defects that surface-level inspections might miss, ensuring the weld seam is as strong as the base metal. Eddy Current Testing is our primary tool for surface-breaking crack detection in high-speed, automated production environments. How it works: An electromagnetic coil induces an alternating current in the pipe surface. Any crack or discontinuity disrupts the flow of these “eddy currents,” triggering an immediate alarm. Why it’s vital: It is incredibly sensitive to small surface cracks and longitudinal defects along the weld line, providing real-time feedback during the welding process. Hydrostatic testing acts as the ultimate “stress test” for the entire pipe. While UT and ET are non-destructive. How it works: Each pipe is filled with water and pressurized to a specific level (often exceeding the pipe’s rated working pressure) for a set duration. Why it’s vital: It confirms the pipe’s ability to withstand high pressure without bursting or leaking. It is the final “seal of approval” before any shipment leaves our facility. MPI is a highly reliable method for identifying surface and near-surface cracks For localized spot checks or secondary inspections. How it works: The pipe is magnetized, and iron particles are applied to the surface. These particles cluster at the site of any cracks, making them clearly visible to our quality control team. Comprehensive Crack Detection Methods for ERW Steel Pipes Quality Commitment: Your Project, Our Priority At JS FITTINGS, we don’t just sell pipes; we provide peace of mind. By combining advanced NDT technology with a rigorous quality management system, we ensure that every batch of ERW pipes we produce is ready to perform in the world’s most demanding industrial environments. Whether you are a project manager looking for reliable material sourcing or a distributor needing consistent quality for your inventory, our technical team is here to support your requirements.

Minimum Order: 5 dozens

Buttweld Fittings Pressure Rating vs. Wall Thickness The pressure rating of a buttweld fitting (such as an elbow, tee, or reducer) is not an arbitrary number. It is intrinsically linked to the pipe schedule. Under ASME B16.9, the standard for factory-made wrought buttweld fittings, the fitting must be designed to withstand the same pressure as the matching straight seamless pipe. Key takeaway: A fitting’s pressure rating is defined by the wall thickness (Schedule 40, 80, 160, etc.) and the material grade (ASTM A234 WPB, A420 WPL6, etc.). Buttweld fittings do not carry independent pressure class ratings (like 150# or 300# flanges). Instead, their pressure rating matches the straight pipe of the corresponding nominal size and wall thickness schedule, meaning a fitting with a specific schedule thickness safely contains the exact same internal pressure as a pipe of that same schedule. Rating and Thickness Principles Equal Strength: A butt-weld fitting is designed to have equal or greater nominal thickness and strength than the matching pipe. Schedule Matching: Ratings are designated by pipe schedules (such as SCH 10, SCH 40, SCH 80, and SCH 160) rather than pound classes. Wall Thickness Rules: Thicker walls handle higher internal operating pressures and temperatures. Design Standards: Governed by standards like ASME B16.9 for dimensions and ASME B31.3 for pressure design calculations. Why “Matching” Matters When selecting buttweld fittings for high-pressure pipelines, the “matching principle” is the golden rule: Uniformity: The fitting’s wall thickness must match the pipe’s nominal wall thickness to ensure a consistent inner diameter (ID) and proper weld penetration. Pressure Integrity: If the fitting thickness is lower than the pipe schedule, the fitting becomes the weak point of the system. Hydrostatic Testing: All Rayoung fittings are manufactured to comply with strict testing protocols to ensure that, regardless of the schedule, the fitting maintains its pressure rating under extreme thermal and mechanical stress. Critical Factors Influencing Your Choice Operating Pressure & Temperature: Higher pressures require higher schedules (e.g., Sch 80 or 160). Corrosion Allowance: For oil and gas applications, engineers often add “corrosion allowance” to the wall thickness, which may require jumping to a higher schedule than the base pressure rating suggests. Material Grade Matters: A stainless steel fitting (e.g., ASTM A403 WP316) has different pressure-temperature ratings than a carbon steel fitting (e.g., A234 WPB), even if the wall thickness is the same. Why Experienced Buyers Choose Rayoung At Rayoung, we don’t just supply fittings; we provide engineering solutions. We understand that for international projects, documentation is as important as the steel itself. Manufacturing Precision: Our CNC machining and forging processes ensure every fitting meets exact wall thickness tolerances per ASME/ANSI standards. Traceability: We offer full MTC (Material Test Certificates) according to EN 10204 3.1. Scalability: From bulk inventory supply for distributors to custom-engineered runs for large-scale energy projects, Rayoung delivers consistency across every piece.

Minimum Order: 5 dozens

What is an SORF Flange? SORF stands for Slip-On Raised Face. Slip-On: The flange is designed to slide over the end of the pipe. Once in place, it is fillet-welded both inside and outside to provide sufficient strength and prevent leakage. Raised Face (RF): This refers to the gasket surface, which is elevated above the bolting circle face. This design concentrates more pressure on a smaller gasket area, creating a tighter, more efficient seal. How Many Types of Flanges Are There? While the industry utilizes various custom configurations, the most common industrial flanges include: Weld Neck (WNRF): Distinguished by its long tapered hub, ideal for high- pressure and high-temperature services. Blind Flange: Used to seal the end of piping systems or pressure vessel openings. Socket Weld (SWRF): Primarily used for small-bore, high-pressure piping. Lap Joint: Used in systems that require frequent dismantling for cleaning or inspection. Threaded: Used where welding is not an option, typically in low-pressure utility lines. Slip-On (SORF): The versatile choice for lower-pressure applications where ease of installation is prioritized. SORF Flanges: Advantages Over Other Types Why do many project managers and procurement professionals prefer SORF flanges for specific applications? Ease of Alignment: Because the pipe slides into the flange, it is easier to align and position the piping compared to a Weld Neck flange, which requires precise butt-welding. Cost-Effectiveness: SORF flanges are generally less expensive to manufacture and easier to install, significantly reducing labor costs in non-critical piping runs. Versatility: They are the go-to solution for general industrial piping, such as water systems, low-pressure oil lines, and petrochemical transport where extreme thermal shock is not the primary concern. Why Partner with Rayoung for Your Flange Needs? While the design of an SORF flange is standard, the metallurgical quality and dimensional accuracy are not. At Rayoung, we understand that a faulty flange can shut down an entire pipeline. As a specialized manufacturer of industrial flanges and pipe fittings, Rayoung provides: Precision Manufacturing: We adhere to ASME B16.5 and ASME B16.47 standards, ensuring every SORF flange we produce offers a perfect fit and reliable sealing performance. Diverse Material Availability: From Carbon Steel (A105) to Stainless Steel (304/316) and low-temperature alloys, we stock and manufacture for various operational environments. Project-Ready Logistics: Whether you are an international distributor looking for bulk inventory or an EPC contractor sourcing for a large-scale energy project, our manufacturing capacity is geared to meet your project timeline.

Minimum Order: 5 dozens

Standard: ASME B16.9 buttweld elbows Size Range: 1/2″ to 48″ (DN15 – DN1200) Wall Thickness: SCH 10S to XXS Material Grades: Carbon Steel (A234 WPB), Stainless Steel (304/316L), Alloy Steel Key Advantage: Full MTC 3.1 Traceability & Precision Bevel Ends Certification: High-quality industrial standards, ideal for Oil & Gas/Petrochemical projects. Available for global bulk supply & custom engineering. 90° buttweld elbows are engineered for maximum flow efficiency and structural integrity in demanding industrial piping systems. Designed to change the direction of fluid flow by 90 degrees, these fittings are essential components for oil & gas, petrochemical, and power generation infrastructure. 90° Buttweld Elbows Types We offer both Long Radius (LR) and Short Radius (SR) 90° elbows. Choosing the right radius is crucial for your system’s flow dynamics and pressure drop— learn more about the difference between long radius and short radius elbows here. Parameter Details Standard ASME B16.9, MSS SP-75, DIN, EN 10253 Size Range 1/2″ to 48″ (DN15 to DN1200) Wall Thickness Schedule 10S, 40, 80, 160, XXS (Custom thicknesses available) Radius Long Radius (LR) and Short Radius (SR) buttweld elbows Material Carbon Steel: A234 WPB, A420 WPL6, A860 WPHY series Stainless Steel: A403 WP304/304L, WP316/316L, WP321 Alloy Steel: Chrome-moly gradesKey Differences of Stainless Steel vs. Carbon Steel Elbows, please click here. Surface Treatment Black painting, rust-proof oil, galvanized, sandblasting Quality Control UT, RT, MPI testing available upon request

Minimum Order: 5 dozens

ASME B16.47 Large Diameter Flanges (26″ – 60″) Series A & Series B – RAYOUNG Forged Flanges Solutions We provide high-performance ASME B16.47 large-diameter flanges, both Series A (MSS SP-44) and Series B (API 605), designed for heavy-duty industrial piping systems. Covering sizes from 26″ to 60″ and various pressure ratings, ensuring full compliance with international piping standards and project- specific requirements. What Is ASME B16.47? ASME B16.47 is the standard covering large-diameter steel pipe flanges, specifically weld neck flanges and blind flanges in sizes 26″ through 60″. It covers pressure classes 75, 150, 300, 400, 600, and 900, and its materials align with ASME B16.5 (with the exception of nickel alloys), so the same pressure-temperature tables generally apply. The reason B16.47 exists is straightforward: once you get past NPS 24″, the dimensions in B16.5 simply don’t extend far enough as they weren’t designed by the committee. Large-diameter piping in pipelines, petrochemical plants, power generation facilities, and water infrastructure needs its own dimensional standard, and that’s ASME/ANSI B16.47. What makes B16.47 different from most other flange standards is that it’s divided into two categories, Series A and Series B, each with distinct dimensional requirements, bolt counts, and design philosophies. Material Grades We Forge We use premium forged billets to ensure grain flow and structural integrity: Carbon Steel: ASTM A105, A350 LF2/LF3, A694 F42/F52/F60/F65/F70 Stainless Steel: ASTM A182 F304/304L, F316/316L, F321, F347 Duplex & Alloy: ASTM A182 F51, F53, F55; ASTM A182 F5, F9, F11, F22 ASME B16.47 Series A vs. Series B Series A (MSS SP-44): Known as the “heavy-duty” series. Series A flanges are thicker, heavier, and use larger bolt circles. They are designed to withstand higher external loads and are the standard choice for new pipeline construction. Series B (API 605): Often referred to as the “compact” series. Series B flanges have more but smaller bolts and a smaller bolt circle. They are lighter and more cost- effective, typically used for replacements or in space-restricted environments. Note: Series A and Series B flanges are not interchangeable as their drilling templates (bolt circles) differ significantly.

Minimum Order: 5 dozens

Product Name: Buttweld 180° Returns (U-Bends) Standard: ASME B16.9, ASME B16.28, MSS SP-75 Type: Long Radius (LR 1.5D) & Short Radius (SR 1.0D) Size Range: 1/2″ – 24″ (Seamless); Up to 48″ (Welded) Wall Thickness: SCH 10S to SCH XXS (Heavy wall specialized) Materials: Carbon Steel (ASTM A234 WPB, WPL6) Stainless Steel (304L, 316L, 321) Alloy Steel (WP11, WP22, WP91) Custom Service: Support for Custom Radius (3D, 5D) & Special Materials 180° Return Configurations: LR vs. SR The performance of a 180-degree return is defined by its bend radius, which determines the distance between the inlet and outlet pipes. Long Radius (LR) 180° Returns The radius (R) is 1.5 times the nominal pipe size (NPS). The center-to-center dimension is 3D. These are preferred for systems requiring lower pressure drop and smoother flow. Short Radius (SR) 180° Returns The radius (R) is equal to the NPS (1.0D). The center-to-center dimension is 2D. SR returns are indispensable for tight bundle heat exchangers and compact skid designs (manufactured per ASME B16.9 or B16.28). Why JS FITTINGS 180° Returns Stand Out ✔Controlled Ovality: We ensure the cross-section remains circular throughout the tight 180° bend to prevent flow obstruction. ✔Wall Thickness Integrity: Advanced mandrel forming prevents excessive thinning on the extrados (outer curve), maintaining the pressure rating. ✔Dimensional Precision: Accurate Center-to-Center (V) and Back-to-Face (O) dimensions ensure a perfect fit into tubesheets. ✔Heat Treatment: Full solution annealing or normalizing post-bending to restore mechanical properties and eliminate work hardening.

Minimum Order: 5 dozens

High-Performance Induction Bends for Oil, Gas, and Industrial Piping Systems – ASTM A234 WPB & High-Yield Grades. Manufacturing standard: AISI B16.49, ASME B16.9/B16.49,EN 10253-2,GOST 17375 Material: Carbon steel, Alloy steel, Stainless steel Material standards: API 5L, ASTM A234 WPB; ASTM A403 304/304L, 316/316L. Size: 1/2″-48″, any customized size Radius range: R=2D, 2.5D, 3D bend, 5D bend, 6D, 8D bend Degree range: 45 degree, 60 degree, 90 degree and customized. Wall thickness: SCH 10, SCH 40, SCH 80 Coatings: Black paint, galvanized, epoxy coated, 3PE, FBE 3D, 5D, 6D, 8D Pipe Bends Advanced solutions for changing pipeline directions with maximum efficiency. 3D Bend Radius = 3 × Pipe OD. Commonly used in refineries and compact plant layouts. 5D Bend Radius = 5 × Pipe DN. The industry standard for long-distance pipelines and piggable systems. 6D Bend Radius = 6 × Pipe Diameter. Used for moderate directional changes in specialized projects. 8D Bend The Longest Common Radius. Provides the maximum smooth transition for fluid transport. Large Diameter Pipe Bending In oil and gas transmission, large-diameter pipe bends are critical for high- capacity flow. We provide customized radii (3D to 10D) to ensure seamless installation in complex geological conditions and long-distance high-pressure pipeline projects. < , br>Large Diameter carbon steel buttweld Pipe Bend 3D vs. 5D Bends: Choosing the Right Geometry As a specialized buttweld pipe bend supplier, we help our clients select the optimal radius for their specific flow dynamics: 3D Carbon Steel Bends (R=3D) Often used in refinery and chemical plant processing where space is constrained but a smoother flow than a standard long-radius elbow (1.5D) is required. 5D Carbon Steel Bends (R=5D) The industry standard for long-distance transport pipelines. The buttweld 5D bend is essential for “piggability”—allowing cleaning and inspection tools (PIGs) to pass through the system without obstruction. It also significantly reduces pressure drop and internal turbulence. Advanced Manufacturing & Quality Control Our reputation as a buttweld pipe bend exporter is built on our rigorous “Zero-Defect” manufacturing process: Induction Bending Process: ▶Local Heating: We use high-frequency induction coils to heat a narrow circumferential band of the pipe to the forging temperature. ▶Precision Forming: Hydraulic rams push the pipe through a pivoting arm, creating the exact 3D or 5D radius with minimal mechanical stress. ▶Post-Bend Heat Treatment: To restore the mechanical properties of the carbon steel, all bends undergo Normalizing or Stress Relieving according to ASTM standards. ▶Surface Protection: Finished products are treated with black varnish, anti- rust oil, or specialized FBE/3PE coating for long-term corrosion resistance. Inspection & Testing: ✓Dimensional Integrity: Strict monitoring of wall thinning (not exceeding 10- 12%) and ovality. ✓Non-Destructive Testing (NDT): 100% Ultrasonic (UT) and Magnetic Particle Inspection (MPI). ✓Certification: Full Material Test Certificates (MTC) provided per EN 10204 3.1 for every batch.

Minimum Order: 5 dozens

In the world of industrial piping, selecting the correct connection method is more than a design preference—it is a critical decision that impacts installation costs, system integrity, and long-term maintenance requirements. Whether you are managing a high-pressure transmission line or a small-bore process system, the choice between Butt Weld (BW) Fittings and Socket Weld (SW) fittings will dictate your welding procedures, inspection standards, and overall project budget. This guide breaks down the technical differences and provides a framework for selecting the right connection for your application. Comparison Matrix: Quick Reference for Procurement To streamline your selection process, refer to the following comparison between ASME B16.9 (Butt Weld) and ASME B16.11 (Socket Weld) standards. Feature Butt Weld (BW) Socket Weld (SW) Primary Standard ASME B16.9 ASME B16.11 Typical Pipe Size 2″ and larger 2″ and smaller Pressure Integrity High (Full penetration) Moderate (Fillet weld) Welding Complexity High (Requires skilled labor) Lower (Easier alignment) Cost Higher (Due to labor/inspection) Lower (Cost-effective for small bore) Corrosion Risk Minimal (Smooth internal flow) Potential for crevice corrosion When to Specify Butt Weld Fittings Butt weld fittings are designed to be welded directly to the pipe, creating a joint that possesses the same structural integrity as the pipe itself. High-Pressure/High-Temperature Applications: Ideal for lines subjected to extreme stress where full penetration welding is mandatory. Minimal Flow Restriction: Because the fitting has the same wall thickness as the pipe, it provides a smooth, unobstructed flow path, making it the preferred choice for lines that require frequent pigging or involve abrasive fluids. Critical Infrastructure: For oil, gas, and power generation projects, butt weld connections are often specified by code to ensure maximum fatigue resistance. Explore our range of Butt Weld Pipe Fittings manufactured to ASTM/ASME standards.

Minimum Order: 10 long tons

Butt Weld (BW) Tees are the backbone of flow distribution in industrial piping systems. Whether for high-pressure oil and gas pipelines or complex chemical processing units, the structural integrity of your tees dictates the safety of the entire line. At JS FITTINGS, we provide ASME B16.9 compliant butt weld tees designed to handle extreme pressure, temperature fluctuations, and corrosive environments with unmatched reliability. We produce: Precision Engineering: Manufactured to exceed ASME B16.9 standards, our tees feature optimized wall thickness to ensure consistent pressure ratings across the entire fitting. Material Versatility: We supply seamless and welded tees in a comprehensive range of materials, including: Carbon Steel: ASTM A234 WPB, WPC, A420 WPL6 (Low Temp). Stainless Steel: ASTM A403 WP304/304L, WP316/316L. Alloy Steel: ASTM A234 WP5, WP9, WP11. Stringent Quality Control: Every tee undergoes dimensional verification, visual inspection, and hydrostatic testing. We provide full MTR documentation to ensure 100% project traceability. Choosing Between Equal and Reducing Tees: Equal (Straight) Tees: Used when the branch outlet diameter matches the run pipe. Essential for maintaining uniform flow in main headers. Reducing Tees: Crucial for systems where the branch line requires a lower flow rate or pressure adjustment. Using a reducing tee instead of an equal tee with a reducer reduces installation labor and potential leak paths

Minimum Order: 5 dozens

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What is ASTM A420? ASTM A420 covers wrought carbon steel and alloy steel pipe fittings of seamless and welded construction. These fittings are primarily used in pressure piping and pressure vessel service at low temperatures. The most commonly utilized grade is WPL6, which undergoes rigorous Charpy V-notch impact testing to ensure it does not become brittle in freezing environments. Key Grades under ASTM A420 While A420 includes several grades, the industry standard for most low- temperature projects is: WPL6: The most common grade, impact tested at -50°F [-45°C]. WPL3: Impact tested at -150°F [-101°C]. WPL8: Impact tested at -320°F [-195°C] (often used for liquid nitrogen/oxygen). Common Types of ASTM A420 Fittings JS Fittings manufactures a full range of A420 WPL6 butt-weld fittings according to ASME B16.9: A420 WPL6 Elbows: 45°, 90°, and 180° (Long Radius & Short Radius). A420 WPL6 Tees: Equal Tees and Reducing Tees. A420 WPL6 Reducers: Concentric and Eccentric reducers for changing pipe diameters. A420 WPL6 Caps: For sealing pipe ends in low-temp systems.

Minimum Order: 5 dozens

Standard Guidelines: GOST 17375-2001: Covers carbon/alloy steel buttweld fittings. GOST 30753-2001: Applies to stainless steel buttweld fittings. GOST 12220-84: Specifies welded fittings designed for the oil and gas industries. Types of Pipe Fittings: Elbows (45°/90°/180°), equal/reducing tees, concentric/eccentric reducers, and caps. GOST Butt Weld Pipe Fittings are pipe fittings that are manufactured according to the GOST standards and are used to connect, redirect, and control the flow of fluids and gases within a piping system. These fittings are primarily designed for welding onto the pipe using a butt-welding process, ensuring a strong and leak-proof joint. Key GOST Standards We Manufacture We produce the full suite of “Seamless Steel Butt-Welding Fittings” according to the following critical GOST specifications: GOST 17375-2001: Carbon and Low-alloy Steel Elbows (Standard radius). GOST 30753-2001: Carbon and Low-alloy Steel Elbows (Short radius for tight spaces). GOST 17376-2001: Steel Tees (Equal and Reducing). GOST 17378-2001: Steel Reducers (Concentric and Eccentric). GOST 17379-2001: Steel Ellipsoidal Caps. GOST 12820/12821: Steel Flanges (Plate and Weld Neck) for use with GOST fittings. Common Types of GOST Butt Weld Pipe Fittings GOST 17375 Elbow GOST 17376 Reducer GOST 17375 Tee GOST 17376 cap Q: What is the difference between GOST 17375 and GOST 30753? A: The main difference is the bend radius. GOST 17375 is Type 3D (R≈1.5D), which is the standard long radius. GOST 30753 is Type 2D (R≈1.0D), which is a short radius elbow used in confined spaces or specific vessel designs. Q: Can you provide GOST fittings with “HL” (ХЛ) certification? A: Yes, our 09G2S fittings are specifically processed to meet the HL (cold- resistant) category, suitable for deployment in Northern climatic zones. RAYOUNG is a certified Chinese manufacturer specializing in the bulk production and export of GOST standard butt-weld fittings. We understand the specific technical rigors of the Russian and CIS industrial sectors—ranging from oil and gas extraction in Siberia to large-scale thermal power infrastructure. Our GOST fittings are engineered to withstand the extreme temperature fluctuations and high-pressure requirements of the Eurasian energy sector. By integrating high-quality raw materials with precision hot-mandrel forming, we provide a reliable pipe fittings supply for large-volume stockists and EPC contractors. If you are looking for a competitive, high-capacity factory in China to support your GOST 17375/17378/17376 requirements, RAYOUNG is your solution. Contact us today for a full weight chart and bulk pricing. +86-18003119682 info@hb-steel.c , om

Minimum Order: 5 dozens

ASME B16.47 Large Diameter Flanges (26″ – 60″) Series A & Series B – RAYOUNG Forged Flanges Solutions We provide high-performance ASME B16.47 large-diameter flanges, both Series A (MSS SP-44) and Series B (API 605), designed for heavy-duty industrial piping systems. Covering sizes from 26″ to 60″ and various pressure ratings, ensuring full compliance with international piping standards and project- specific requirement RAYOUNG provides high-performance ASME B16.47 large diameter flanges designed for heavy-duty industrial piping systems. Covering sizes from 26″ to 60″, these flanges are essential for high-pressure and high-temperature applications in oil and gas, petrochemical, and power generation industries. As a specialized forging manufacturer, we produce both Series A (MSS SP-44) and Series B (API 605) flanges in various pressure ratings, ensuring complete compliance with international piping standards and project-specific requirements. What Is ASME B16.47? ASME B16.47 is the standard covering large-diameter steel pipe flanges, specifically weld neck flanges and blind flanges in sizes 26″ through 60″. It covers pressure classes 75, 150, 300, 400, 600, and 900, and its materials align with ASME B16.5 (with the exception of nickel alloys), so the same pressure-temperature tables generally apply. The reason B16.47 exists is straightforward: once you get past NPS 24″, the dimensions in B16.5 simply don’t extend far enough as they weren’t designed by the committee. Large-diameter piping in pipelines, petrochemical plants, power generation facilities, and water infrastructure needs its own dimensional standard, and that’s ASME/ANSI B16.47. What makes B16.47 different from most other flange standards is that it’s divided into two categories, Series A and Series B, each with distinct dimensional requirements, bolt counts, and design philosophies. Material Grades We Forge We use premium forged billets to ensure grain flow and structural integrity: Carbon Steel: ASTM A105, A350 LF2/LF3, A694 F42/F52/F60/F65/F70 Stainless Steel: ASTM A182 F304/304L, F316/316L, F321, F347 Duplex & Alloy: ASTM A182 F51, F53, F55; ASTM A182 F5, F9, F11, F22 ASME B16.47 Series A vs. Series B Series A (MSS SP-44): Known as the “heavy-duty” series. Series A flanges are thicker, heavier, and use larger bolt circles. They are designed to withstand higher external loads and are the standard choice for new pipeline construction. Series B (API 605): Often referred to as the “compact” series. Series B flanges have more but smaller bolts and a smaller bolt circle. They are lighter and more cost- effective, typically used for replacements or in space-restricted environments.

Minimum Order: 5 dozens

ASME B16.11 Forged Steel Fittings – High-Pressure Socket Weld & Threaded Pipe Fittings Solutions Supplier ASME B16.11 is the standard for forged steel fittings, including socket weld and threaded types. Materials include carbon steel, alloy steel, and stainless steel. Also described as Class 2000, 3000, 6000 threaded end fittings and Class 3000, 6000, and 9000 for socket weld end fittings. Key Specifications & Ratings The ASME B16.11 standard categorizes forged fittings into specific pressure- temperature ratings known as “Classes.” The rating directly corresponds to the wall thickness of the connected piping schedule. Pressure Classes: Threaded fittings are designated as Class 2000, 3000, and 6000. Socket-weld fittings are designated as Class 3000, 6000, and 9000. Pipe Schedule Matching: Class 3000: Typically used with Schedule 80 / Extra Strong (XS) pipes. Class 6000: Used in heavier, high-pressure Schedule 160 pipes. Class 9000: Reserved for extremely thick Double Extra Strong (XXS) pipe walls. Comprehensive Product Configuration We provide the full range of forged fittings in both Socket Weld (SW) and Threaded (NPT/BSPT) end connections: 90° & 45° Elbows: Precision-angled for smooth directional changes. Tees & Crosses: Equal and Reducing configurations for flow distribution. Caps: Including Hex Head, Square Head, and Round Head Plugs. Bushings: Hex Head Bushings for seamless diameter reduction. Street Elbows: Male-to-female threaded connections for space-restricted areas. Technical Specifications Pressure Ratings & Classifications Our steel pipe fittings are categorized by their pressure-temperature ratings to ensure safety in diverse industrial environments: Threaded Fittings: Class 2000, 3000, and 6000. Socket Weld Fittings: Class 3000, 6000, and 9000. Size Range Nominal Size: 1/8″ to 4″ (DN6 to DN100). Wall Thickness: Corresponding to SCH 80, 160, and XXS piping systems. Threading Standards We utilize high-precision CNC threading to ensure leak-proof seals: NPT (National Pipe Thread): Conforming to ASME B1.20.1. BSPT / Din 2999: For European and Commonwealth project requirements.

Minimum Order: 5 dozens