Iron & Steel

Product name: Spiral Submerged-arc Welded Steel Pipe / SSAW Steel Pipe Usage: Low pressure liquid delivery, such as water, gas, and oil, Offshore Piling Pipe / Port Construction Pipe, Structure Pipe Standard: API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS 5950, ASTM A572 , JIS, IS, Certificate: EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT Out Diameter: 219.1 - 3048mm Wall Thickness: 5 - 30mm Length: Up to 70m Steel Grade: API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70 ASTM A252 GR 1, GR 2, GR 3 ASTM A53: GR A, GR B, GR C, GR D BS 4360: Grade 43, Grade 50 EN: S275, S275JR, S355JRH, S355J2H Surface Treatment: Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test. Mill Test Certificate: EN 10204/3.1B

OD Size Range: 15-820mm Thickness Size Range: 2-70mm Material: DIN1629 ST52 Q345B 16Mn 16Mn is a Low-alloy high-strength structural steel: the carbon content is 0.1%-0.25%, and the main alloying elements manganese, silicon, vanadium, niobium and titanium are added. Chemical Composition C Si Mn P S Cr Ni Cu 0.13~0.19 0.20～0.6 1.2~1.6 ≤0.03 ≤0.02 ≤0.15 ≤0.3 ≤0.25 Mechanical behavior Tensile strength: 470~660N/mm2 Yield strength: 275~345N/mm2 Elongation: 21%. Main Features Good comprehensive performance, good low temperature performance, good stamping performance, good welding performance and machinability. Applications Ships, boilers, pressure vessels, oil storage tanks, bridges, power station equipment, hoisting and transporting machinery and other welded structural parts with higher loads. Delivery Status The steel is delivered in hot rolled, controlled rolled, normalized, normalized + tempered, thermomechanical rolled (TMCP) condition.

JIS G3141 SOFT QUALITY G550 HIGH GLOSSY BRICK PATTERN COLOR STEEL PREPAINTED PPGI​ COLOR COATED COIL PPGI (PPGL) Features: Item name Prepainted galvanized steel coils on sale Grade DX51D+Z S250GD+Z SGCC DX52D+Z S280GD+Z SGCD DX53D+Z S350GD+Z SGCE DX54D+Z S550GD+Z DX56D+Z Thickness 0.12 ~ 3.00 mm (cold rolled) 1.20 ~ 4.60 mm (Hot-rolled ) Width 10 - 600 mm (strip) 600 - 1250 mm (coil) Tolerance Thickness: ±0.01 mm Width: ±2 mm Coil ID 508 mm - 610 mm Coil weight 3 - 8 ton or as client requirement. Zinc coating 30g - 275g / m2 Spangle Big spangle,Regular spangle,Mini spangle,Zero spangle Surface treatment Oil,Passivation, Chromated, Skin-passed, Anti-finger Print HS code code 72104900 Application Widely used in road, railway, civil construction, water conservancy construction; all kinds of machinery, electrical appliances, window protection and aquaculture, etc. Package Standard export package (Plastic film in the first layer,second layer is Kraft paper. Third layer is galvanized sheet) Delivery time Within 15 workdays after deposit received Remarks Insurance per to Contract terms; MTC will be handed on with shipping documents; We accept the third party certificatation test.

HMS 1 : 80% as per ISRI CODE 200 –202 HMS 2 : 20% as per ISRI CODE 203 – 206 Casting loss than 5% in total quantity. Descriptions and Specifications: The Chemical Composition of the steel scrap: International Standards as follows: MN - 0.60 1.05 C - 0.54 0.82 Si - 0.18 - 0.12 S - 0.04 Max P - 0.035 Max As - 0.01% Max of Mass Share Cr - Residual.

Minimum Order: 50000

SPECIFICATION MATERIAL: ISRI Code (27/29) R50 (51.67 Kg/Meter – GOST 7173-75) ISRI Code (27/29) R65 (64.72 Kg/Meter – GOST 8165-75) Composition: C: 0.54%- 0.82%, Si: 0.18%-0.40%, Mn: 0.60%-1.05%, S: 0.04% Max,P: 0.035% Max, As: 0.01% Max of Mass Share. Length: between 6-12 m (min.) to 12 meters (max) not exciding 12 meters COMPOSITION: METAL IMPURITIES TOTAL 1% (ONE PERCENT) OR LESS.All goods sold by the seller will be totally free of anytypes of radiation, bombs, arms and ammunition, mines,shells, cartridges, sealed containers, penguins, gas cylinders, explosive shells and/or explosive materials in and form, used or otherwise. contact us for more details.

Minimum Order: 50000

Also known as wind steel or front steel, also known as white steel. It means that when quenched, it hardens even when cooled in air and is sharp. It is a complex alloy steel containing carbide-forming elements such as tungsten, molybdenum, chromium, vanadium, and cobalt. The total amount of alloying elements is about 10 to 25%. It can still maintain high hardness under high heat generated by high-speed cutting (about 500 ℃), and the HRC can be above 60. This is the most important characteristic of high-speed steel - red hardness. After quenching and low-temperature tempering, carbon tool steel has high hardness at room temperature, but when the temperature is higher than 200 °C, the hardness drops sharply, and the hardness at 500 °C has dropped to a similar level to the annealed state. , completely lost the ability to cut metal, which limits the use of carbon tool steel to make cutting tools. High- speed steel, due to its good red hardness, makes up for the fatal shortcomings of carbon tool steel and can be used to manufacture cutting tools. High-speed steel generally does not do tensile strength testing, but mainly metallographic and hardness testing. After the correct heat treatment of tungsten and molybdenum high-speed steel, the Rockwell hardness can reach above 63, and the cobalt high-speed steel is above 65. The acid leached low-magnification structure of the steel shall not have shrinkage cavities and skin turns visible to the naked eye. The center is loose, and the general looseness should be less than grade 1. The content of metallographic inspection mainly includes three items: decarburization layer, microstructure and carbide inhomogeneity. 1. High-speed steel should not have obvious decarburization. The microstructure must not have fishbone-like eutectic ledeburite. 2. Carbide inhomogeneity in high-speed steel has the greatest impact on quality, and the metallurgical and mechanical departments attach great importance to the level of carbide inhomogeneity. Different grades of carbide non-uniformity requirements can be put forward according to different uses of steel, and usually should be less than grade 3. 3. In addition to high hardness, high wear resistance and sufficient toughness, another important factor is the red hardness of high-speed steel for manufacturing cutting tools. (Red hardness refers to the ability of the cutting edge to resist softening under red heat when the tool is cutting at high speed.) One way to measure the red hardness is to first heat the steel to 580-650°C, keep the temperature for 1 hour, then cool it down, and measure its hardness after repeating this for 4 times. The quenching temperature of high-speed steel is generally close to the melting point of the steel. After quenching, it is generally necessary to temper 3 times between 540 and 560 °C. Increasing the quenching temperature can increase the red hardness of the steel. In order to improve the service life of high-speed steel tools, the surface can be strengthened, such as low-temperature cyanidation, nitriding, sulfur-nitrogen infiltration, etc. songshunmoldsteel41404340

Minimum Order: 1 bags

High-speed steel has good process performance, good strength and toughness, so it is mainly used to manufacture complex thin-edged and impact-resistant metal cutting tools, as well as high-temperature bearings and cold extrusion dies. In addition to the high-speed steel produced by the smelting method, powder metallurgy high-speed steel appeared after the 1960s, which has the advantage of avoiding the reduction of mechanical properties and heat treatment deformation caused by the segregation of carbides produced by the smelting method. The heat treatment process of high-speed steel is more complicated, and it must go through a series of processes such as quenching and tempering. Quenching is generally carried out in two stages due to its poor thermal conductivity. First preheat at 800 ~ 850 ℃ (to avoid causing large thermal stress), then quickly heat to the quenching temperature of 1190 ~ 1290 ℃ (the actual temperature of different brands is different), and then oil cooling or air cooling or gas cooling. The factories are all heated by salt furnaces, and vacuum furnaces are also widely used. After quenching, a part (about 30%) of retained austenite remains in the internal structure and is not transformed into martensite, which affects the performance of high-speed steel. In order to transform the retained austenite and further improve the hardness and wear resistance, it is generally necessary to carry out 2 to 3 tempering times, the tempering temperature is 560 ° C, and the temperature is kept for 1 hour each time. Production method: Usually electric furnace is used for production, and powder metallurgy method was used to produce high-speed steel, so that the carbides are evenly distributed on the substrate in the form of extremely fine particles, which improves the service life. Uses: used in the manufacture of various cutting tools. Such as turning tools, drills, hob, machine saw blades and molds with high requirements. We provide high-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and order；please contact us for quotes. MiKi Zhuo E-mail:jacklu@songshunsteel.com Skype/W , hatsapp/Wechat:+86-18269260283 ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China Company website: https://steelpurchase.com/ http://w , ww.songshunsteel.com/ songshunmoldsteel41404340 ,

Minimum Order: 1 bags

Dongguan Songshun Mould Steel Co., Ltd. is an Indusrtial and trading company with 2 warehouses that manufactures good & high quality kinds of steels starting from 2012. The company provides the customized products and OEM service. What´s more, we keep the mass stock of over 20000 tons. In those years, we offer a wide range of steels to our customers from all over the world. And we enjoy high praise among them. Quick Details Steel Grade:high speed tool steel Standard:AiSi, ASTM, bs, DIN, GB, JIS, AISI,ASTM,BS,DIN,JIS Place of Origin:Guangdong, China Brand Name:SONGSHUN Model Number:T1/1.3355/SKH2/W18Cr4V Technique:forged or hot rolled, Hold rolled,Cold Drawn Application:Tool Steel Bar, Die Steel Bar Alloy Or Not:Is Alloy Special Use:Mold Steel Type:Alloy Steel Bar, Alloy Steel Bar,Mold Steel Surface:black/oiled/bright Shape:round , /flat/plate Hardness of annealed:HBS≤240-300 Dimensions:10mm~800mm Certificate:SGS BV ISO Charateristics After electroslag remelting (ESR), H11 steel will have a fine uniform texture, good hardenability, excellent machining & polishing performance, high toughness & plasticity, good wear/heat/fatigue resistance in high and low temperature. Applications Typical H11 applications include die casting dies for aluminium, magnesium and zinc, extrusion dies for aluminium and brass, liners, mandrels, pressure pads, followers, bolsters, die cases, die holders and adaptor rings for copper and brass extrusion. Other applications include plastic moulds, shear blades for hot work and hot swaging dies. Also used to produce hot stamping and press forge dies, split hot heading dies, gripper dies, hot punching, piercing and trimming tools. WELCOME TO GET A QUOTE MiKi Zhuo E-mail:jacklu@songshunsteel.com Skype/W , hatsapp/Wechat:+86-18269260283 ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China Company website: https://steelpurchase.com/ http://w , ww.songshunsteel.com/ songshunmoldsteel41404340 ,

Minimum Order: 5 dozens

1. 4140 steel is an alloy structural steel with high strength, hardenability, good toughness and small deformation during quenching.It is used to manufacture forgings that require higher strength and larger quenched and tempered section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clips that are heavily loaded, and can also be used for Drill pipe joints and fishing tools for oil wells below 2000m. 2. 4140 Product Process Treatment Heat treatment process: Annealing annealing No.1 "760±10℃ annealing, furnace cooling to 400℃ air cooling. HB220-230 Normalize normalize No.4 860±10℃ normalizing, air-cooled. Quenching+tempering No.5 840±10℃ quenching water or oil (depending on the complexity of the product shape), tempering at 680-700 degrees. HB<217 Quenching+tempering No.6 quenching oil at 840±10℃, and then tempering at 470℃. HRC41-45 Quenching+tempering No.7 quenching oil at 840±10℃, and then tempering at 480℃. HRC35-45 Quenching+tempering No.8 Quenching oil at 850°C, and then tempering at 510°C. HRC38-42 Quenching+tempering No.9 quenching oil at 850℃, and then tempering at 500℃. HRC40-43 Quenching+tempering No.10 Quenching oil at 850℃, and then tempering at 510℃. HRC36-42 Quenching+tempering No.11 Quenching oil at 850℃, and then tempering at 560℃. HRC32-36 Quenching+tempering No.12 Oil quenching at 860°C, and then tempering at 390°C. HRC48-52 3. 4140 Product Information 1.Surface Treatment Plate: Origin Black, Orign cold rolled bright, Machined, Grinded Bar:  Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded 2.Heat treatment specification Heat treatment standard: quenching at 850℃, oil cooling; tempering at 560℃, water cooling, oil cooling; 3.Available Size: Round bar: Diameter(mm) Max 800mm; Length(mm) Max 12000mm. Plate: Thickness(mm) Max 800mm; Width(mm) Max 2300mm; Length(mm) Max 12000mm. Condition: Cold rolled(drawn)≤50mm, Hot rolled≤12-250mm, Hot forged≥50mm. 4.AISI 4140/DIN 1.7225 Introduction: AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. 5.Video Description https://steelpurchase.com/steel-video/ 4. We provide high-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and order；please contact us for quotes. MiKi Zhuo E-mail:jacklu@songshunsteel.com Skype/W , hatsapp/Wechat:+86-18269260283 ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China For more 4140 steel product information, please click this link: https://steelpurchase.com/4140-scm440-172 , 25-steel/ Company website: https://steelpurchase.com/ http://w , ww.songshunsteel.com/ songshunmoldsteel41404340 ,

Minimum Order: 3 bushels

What is high hardenability? It indicates that the ability of steel to obtain the depth of the hardened layer when quenched under certain conditions is mainly affected by the carbon content and alloying elements in the austenite. It indicates that the ability of steel to obtain the depth of the hardened layer when quenched under certain conditions is mainly affected by the carbon content and alloying elements in the austenite. Hardenability: refers to the characteristics that determine the hardening depth and hardness distribution of steel under specified conditions. The hardenability of steel is good or bad, which is usually expressed by the depth of the hardened layer. The greater the depth of the hardened layer, the better the hardenability of the steel. Namely high hardenability!! The hardenability of steel mainly depends on its chemical composition, especially the alloying elements and grain size that increase the hardenability, heating temperature and holding time and other factors. The steel with good hardenability can obtain uniform mechanical properties of the entire section of the steel, and a quenching agent with a small quenching stress of the steel can be selected to reduce deformation and cracking. songshunmoldsteel41404340

Minimum Order: 1 bags

A106 seamless steel pipe is a kind of seamless steel pipe used for conveying water, oil, gas and other high temperature fluid. ASTM A106 seamless steel pipe belongs to the United States standard steel pipe, A106 includes A106-A, A106-B.The former is equivalent to the domestic 10# material, the latter is equivalent to the domestic 20# material.It belongs to ordinary carbon steel series and is one of the commonly used materials.ASTM A106 seamless steel tube includes two processes: cold drawing and hot rolling.In addition to the production process, the two are different in precision, surface quality, minimum size, mechanical properties, and organizational structure.Widely used in petroleum, chemical, boilers, power stations, ships, machinery manufacturing, automotive, aviation, aerospace, energy, geology, construction and military industries and other industries. ASTM A106 Method for Calculating Pressure on Seamless Steel Tubes S choose S = 8;P is less than 17.5MPa seamless steel pipe, S is the safety factor of seamless steel pipe, the wall thickness is 3mm, Pressure P= (2*σ/S*δ) /D

Dongguan Songshun Mould Steel Co., Ltd. Dongguan Songshun Mould Steel Co., Ltd. is an Indusrtial and trading company with 2 warehouses that manufactures good & high quality kinds of steels starting from 2012. The company provides the customized products and OEM service. What´s more, we keep the mass stock of over 20000 tons. In those years, we offer a wide range of steels to our customers from all over the world. And we enjoy high praise among them. SAE 4340 steel Product Details  ·GB steel number:CN:40CrNiMoA DIN:36CrNiMo4 JIS:SNCM439 BS:816M40  US:AISI/ASTM4340 ·keyword:SAE Alloy 4340 Steel Bar ·Usage: It is used as important quenched and tempered parts that require good toughness,high strength and large size, such as heavy machinery and high-load shafts,turbine shafts with a diameter greater than 250mm, helicopter rotor shafts, turbojet engine turbine shafts,blades, high Loaded transmission parts, crankshaft fasteners. gears, etc.; ·Other Steel Types:5140 /4140 / 4340 / 4142 / 15CrMo / 6150 / 38CrMoAI / 8620 ..... ·Serve:OEM/ODM ·Delivery status:With heat treatment (normalized, annealed or high temperature tempered) or without heat treatment Goods, the delivery status should be specified in the contract ·AISI/ASTM 4340 Chemical Composition C:0.37-0.44  Si:0.17-0.37  S:≤0.035  P:≤0.035 Mn:0.50-0.80 Cr:0.60-0.90 Mo:0.15-0.25 N:1.25-1.65 ·ASTM 4340 Mechanical Properties Tensile strength σb (MPa): ≥980(100) Yield strength σs (MPa): ≥835(85) Elongation δ5 (%): ≥12 Area shrinkage ψ (%): ≥55 Impact energy Akv (J): ≥78 Elongation δ5 (%): ≥12 Area shrinkage ψ (%): ≥55 Impact energy Akv (J): ≥78 Impact toughness value αkv (J/cm2): ≥98(10) Sample size: sample blank size is 25mm ·Surface Treatment Plate: Origin Black,Orign cold rolled bright, Machined,Grinded Bar:Origin Black, Orign cold rolled(drawn) bright,Turned, Peeled, Grinded ·For more 4340 steel product information, please click this link: https://steelpurchase.com/4340-sncm439-16 , 563-steel/# songshunmoldsteel41404340

Minimum Order: 2 barrels

Flat steel refers to steel with a width of 12-300mm, a thickness of 3-60mm, a rectangular cross-section and a slight blunt edge. Flat steel can be finished steel, and can also be used as blanks for welded pipes and thin slabs for stacked sheets. Main application: Flat steel can be used as a finished material to make hoop iron, tools and mechanical parts, and it can be used as a house frame structure and escalator in construction. advantage The flat steel is rolled with negative deviation, but is delivered according to the actual weight, and the utilization rate is 1 to 5 percentage points higher than that of the steel plate. Flat steel can be produced with fixed thickness, fixed width and fixed length according to user needs, which reduces cutting for users, saves processes, reduces labor and material consumption, and also reduces processing loss of raw materials, saving time, labor, and saving. material. Products have been professionally used in steel structure manufacturing, machinery manufacturing, automobile industry, mining machinery, hoisting machinery and other industrial materials. Profile steel is one of the four major varieties of steel (plate, tube, profile, wire). According to the section shape, the section steel is divided into simple section section steel and complex section section steel (section steel). The former refers to square steel, round steel, flat steel, angle steel, hexagonal steel, etc.; the latter refers to I-beam, channel steel, rail, window frame steel, curved steel, etc. Square steel - steel with square section, hot-rolled and cold-rolled; hot- rolled square steel has a side length of 5-250mm; cold-drawn square steel has a side length of 3-100mm. Round bar - steel with round section, divided into three types: hot-rolled, forged and cold-drawn. The diameter of hot-rolled round bar is 5-250mm, of which 5-9mm is commonly used as the raw material for drawing steel wire, called wire rod; Disk supply is also called hot rolled wire rod. The forged round steel is straight and thick, and is used as a shaft blank. The diameter of cold-drawn round steel is 3-100 mm, and the dimensional accuracy is high. Angle steel - divided into two kinds of equal angle steel and unequal angle steel. The specification of angle steel is expressed by the dimensions of side length and side thickness. The specifications of angle steel usually produced are 2-20, that is, the number of centimeters on the side. For example, No. 5 equilateral angle steel refers to an angle steel with a side length of 5cm (50mm). The same horn often has 2-7 different side thicknesses. Calculation method of flat steel weight: Flat steel: weight per meter = 0.00785 * thickness * side width Please request a quote. Contact us: MiKi Zhuo E-mail:jacklu@songshunsteel.com Skype/W , hatsapp/Wechat:+86-18269260283 ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China For more steel products information, please click this link: https://steelpurchase.com/ http://www. , songshunsteel.com/ https://songshun.en.alibaba. , com/ songshunmoldsteel41404340

Minimum Order: 1 bags

1.What is cold rolled steel? Cold rolled steel is steel produced by cold rolling. Cold rolling is a steel sheet obtained by further thinning the No. 1 steel sheet to a target thickness under room temperature conditions. Compared with hot-rolled steel sheet, cold- rolled steel sheet has more accurate thickness, smooth and beautiful surface, and also has various superior mechanical properties, especially in terms of processability. Because cold-rolled raw coils are relatively brittle and hard, and are not suitable for processing, cold-rolled steel sheets are usually required to be annealed, pickled and surface smoothed before being delivered to customers. The maximum thickness of cold rolling is below 0.1--8.0MM, for example, the thickness of cold rolled steel plate in most factories is below 4.5MM; the minimum thickness and width are determined according to the equipment capacity and market demand of each factory. 2.How is cold rolled steel processed? Using hot-rolled steel coil as raw material, after pickling to remove oxide scale, cold continuous rolling is carried out, and the finished product is rolled hard coil. The cold work hardening caused by continuous cold deformation increases the strength, hardness and toughness and plastic index of rolled hard coil. , so the stamping performance will deteriorate and can only be used for parts with simple deformation. Hard-rolled coils can be used as raw material for hot-dip galvanizing plants, because hot-dip galvanizing lines are equipped with annealing lines. The weight of the rolled hard coil is generally 6~13.5 tons, and the hot-rolled pickled coil is continuously rolled at normal temperature. The inner diameter is 610mm. 3.What are the relevant standards for cold rolled steel? GB905: Cold rolled round steel, square steel, hexagonal steel GB708: Cold rolled steel sheet and strip (1)Grade DC01、 DC02、 DC03、DC04、SPCC、SPCD、SPCE (2)Supply Standard GB/T 708,EN 10130:1998,JISG3141:2005 (3)Product Size (mm) Nominal thickness:0.3～3.0 Nominal width:20～1600 (4)Use Parts suitable for deep drawing of general forming knives songshunmoldsteel41404340

Minimum Order: 1 bags