Iron & Steel

ASTM A387 Grade 11 Class 1: keep the alloy and strength class together SHH STEEL's Grade 11 Class 1 product page concerns chromium- molybdenum pressure-vessel plate, not structural carbon plate and not stainless steel. The nominal alloy description is 1.25Cr-0.5Mo. ASTM's published A387/A387M scope identifies this family as plate intended primarily for welded boilers and pressure vessels designed for elevated-temperature service. A purchase inquiry should identify the complete designation, including Class 1, rather than stopping at “A387 Grade 11.” What distinguishes this plate Grade and class answer different questions. Grade 11 identifies the alloy family; Class 1 identifies the lower tensile-strength class within that grade. Class 2 is not an automatic upgrade, and Class 1 is not acceptable simply because its chemistry resembles the requested Class 2 material. The actual drawing, design calculation and purchasing specification determine which class is appropriate. For ASME equipment, state the required SA-387 designation and governing edition explicitly, and require the offered certification to match. The SHH STEEL page lists Grade 11 heat-analysis limits of chromium 1.00–1.50%, molybdenum 0.45–0.65%, carbon 0.05–0.17% and silicon 0.50–0.80%, by mass. These are heat-analysis limits, not the measured composition of a particular shipment. Product-analysis allowances are different and should be evaluated using the applicable standard rather than compared indiscriminately with the heat-analysis column. Grade 12 has a different chromium and silicon window; a general “Cr- Mo” description cannot establish equivalence. Strength values need the right context For Class 1, the company technical page lists tensile strength of 415–585 MPa and minimum yield strength of 240 MPa. Treat these as published material requirements to reconcile with the contractual edition, ordered thickness, test condition and certification. They are not allowable stresses for a pressure-vessel calculation or evidence of creep life. ASTM's scope states that maximum thickness is limited by the composition's ability to meet the specified mechanical properties; a single grade name therefore does not prove unrestricted thickness capability. Delivery condition is part of the purchase The product page describes thermally treated delivery, including annealed or normalized-and-tempered routes, with other permitted routes subject to the governing specification. Ask which route is proposed and require it to be recorded in the documentation. Where tempering applies, the page identifies 620°C as the minimum tempering temperature for Grade 11. This is not a universal fabrication PWHT instruction, and it should not be used to set a welding procedure without engineering review. Vessel fabrication can expose the plate to additional thermal cycles. If the design requires simulated post-weld heat treatment of test coupons, specify the cycle, number of cycles and acceptance basis before quotation. Otherwise, a satisfactory tensile result in the original delivered condition may not answer the buyer's actual question about performance after fabrication heat treatment. Applications and fabrication planning Possible uses include boiler shells and elevated-temperature pressure-vessel courses where the approved material specification calls for this exact grade and class. Service suitability also depends on pressure, temperature, corrosion allowance and the process environment. The alloy designation alone establishes neither sour- service qualification nor suitability for every hydrogen-containing process. Those requirements need a specific materials review. Welding should be covered by the fabricator's qualified procedure. The responsible engineer must establish preheat, interpass control, consumables and any PWHT against the construction code and component details. A procedure for ordinary carbon steel should not be assumed suitable merely because both products are plates. Inspection and inquiry checklist Request the required inspection document, such as EN 10204 3.1 where specified, heat-number traceability, heat analysis, mechanical results and delivered heat-treatment condition. If impact testing is required, define temperature, energy, orientation and specimen location. Specify ultrasonic testing with its method and acceptance level, and identify any third-party witness points. None of these additional services is implied as an automatic inclusion. Send nominal thickness, width, length, quantity, edge condition, tolerance basis and minimum-thickness constraints with the inquiry. Include the standard edition, Class 1 designation, intended service and fabrication heat-treatment requirements. Ask for confirmation of actual offered material, dimensions and schedule; no inventory, price, mill approval or blanket certification commitment is represented here. Product information: https://www.steelspecs.com/products/astm-a387- , grade-11-class-1-steel-plate/ Company website: https://www.steelspecs.com/

ASTM A387 Grade 9 Class 2 is 9Cr-1Mo alloy steel plate for pressure vessels in the normalized and tempered condition. Class 2 provides higher mechanical properties than Class 1 for elevated-temperature power and process equipment. SHH STEEL supplies A387 Gr.9 Cl.2 plate with EN 10204 3.1 MTC, FOB Shanghai. Contact admin@steelspecs.com. Website: https://www.steelspecs.com /products/astm-a387- , grade-9-class-2-steel-plate/

ASTM A387 Grade 9 Class 1 is 9Cr–1Mo alloy steel plate for pressure vessels, annealed condition. Applied in elevated-temperature power and process equipment requiring higher chromium content. SHH STEEL supplies A387 Gr.9 Cl.1 plate with mill test certificates. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASTM A387 Grade 5 Class 2 is 5Cr–0.5Mo alloy steel plate for pressure vessels in the normalized and tempered condition. Used where higher strength than Class 1 is specified for hot process service. SHH STEEL supplies A387 Gr.5 Cl.2 plate with MTC. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASTM A387 Grade 5 Class 1 is 5Cr–0.5Mo alloy steel plate for pressure vessels, annealed condition. Intended for elevated-temperature service in petrochemical and refining equipment. SHH STEEL supplies A387 Gr.5 Cl.1 plate with EN 10204 3.1 MTC. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASTM A387 Grade 2 Class 2 is chromium-molybdenum alloy steel plate (approx. 0.5Cr–0.5Mo) for pressure vessels. Class 2 denotes normalized and tempered condition for higher mechanical properties than Class 1. SHH STEEL supplies A387 Gr.2 Cl.2 plate with MTC. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASTM A387 Grade 2 Class 1 is chromium-molybdenum alloy steel plate (approx. 0.5Cr–0.5Mo) for pressure vessels. Class 1 denotes the annealed condition. Used in elevated-temperature process and power equipment. SHH STEEL supplies A387 Gr.2 Cl.1 plate with MTC. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASTM A202 Grade B is chromium-manganese-silicon alloy steel plate for boilers and pressure vessels, providing higher strength than Grade A for welded pressure equipment. SHH STEEL supplies ASTM A202 Gr.B plate with mill test certificates. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASTM A202 Grade A is chromium-manganese-silicon alloy steel plate for boilers and other pressure vessels. Grade A is the lower-strength A202 grade and is intended for welded construction. SHH STEEL supplies ASTM A202 Gr.A plate with EN 10204 3.1 MTC, FOB Shanghai. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASME SA1017 Grade 911 is a 9Cr–1Mo–1W–V–Nb alloy steel plate for elevated-temperature pressure vessels under SA-1017. Applied in power and process equipment needing improved creep resistance over conventional Cr-Mo grades. SHH STEEL supplies SA1017 Gr.911 plate with MTC. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASME SA1017 Grade 122 is a 12Cr–2W–V–Cu–Nb alloy steel plate for elevated-temperature pressure-vessel service under SA-1017. Specified where higher chromium content and creep performance are required in boilers and process equipment. SHH STEEL supplies SA1017 Gr.122 plate with mill test certificates. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

ASME SA1017 Grade 92 is a 9Cr–0.5Mo–1.8W–V–Nb alloy steel plate for high-temperature pressure vessels and power-plant components under SA- 1017 / ASTM A1017. It offers improved creep strength versus older 9Cr grades. SHH STEEL supplies SA1017 Gr.92 plate with EN 10204 3.1 MTC, FOB Shanghai. Website: https://www.steelspecs.com/ Contact admin@steelspecs.com.

Custom Chain Link Fencing Available in Galvanised and Vinyl Coated Materials We provide custom chain link fencing in a range of specifications and materials, including galvanized steel, vinyl-coated steel (non-galvanized), Galfan-coated steel, and stainless steel (316). Custom manufacturing is available based on project requirements, including size, coating type, and wire specification. For minimum order quantities, production capacity, or lead time requirements, please contact us directly via email for detailed information and quotation support. Color:Green Size: 48″ x 100 ft Wire Size: 9 gauge or 4.11MM Knuckle- Knukle: fabric edge style Mesh: 50x50mm; Wire diameter: 2,5-2,8mm Width of the roll: 2000mm Length of the roll: 20mt Galvanized iron wire with Plastic-Coated (PVC);

ASME SA1017 Grade 23 is a chromium-molybdenum-vanadium-tungsten alloy steel plate for pressure vessels (approx. 2.25Cr–1.6W–V–Nb type chemistry under SA-1017 / A1017). Used in elevated-temperature boiler and pressure-vessel service. SHH STEEL supplies SA1017 Gr.23 plate with MTC. Contact admin@steelspecs.com. Website: https://www.steelspecs.com/