astm a537 class 2 (a537 cl.2) steel plates supplier

ASTM A537 Class 2 (A537 Cl.2) Steel Plates supplier

In the demanding field of pressure vessel and boiler manufacturing, choosing materials with superior strength and toughness is essential for safety and longevity under high-pressure conditions.

At Gangsteel, we specialize in producing and exporting premium ASTM A537 Cl 2 steel plates, a quenched and tempered carbon-manganese-silicon steel under the ASTM A537/A537M standard.

This grade, equivalent to ASME SA 537 Class 2, is designed for applications requiring elevated tensile properties in industries like oil and gas, petrochemicals, and power generation.

Gangsteel ensures our plates comply with rigorous standards for reliability in harsh environments.

If comparing, explore our ASTM A537 Cl 1 steel plate for moderate needs or ASTM A537 Cl 3 steel plate for balanced performance.

What is ASTM A537 Class 2 (A537 Cl.2) Steel Plates?

ASTM A537 Class 2 is a high-strength steel for welded pressure vessels, featuring quenching and tempering to achieve enhanced mechanical properties.

It stands out in the ASTM A537 steel plate family for its ability to handle high pressures and sour services, where hydrogen-induced cracking is a risk.

The heat treatment—quenching in water/oil after austenitizing, followed by tempering—creates a fine microstructure for superior hardness and ductility.

At Gangsteel, we supply plates compliant with ASME SA537/SA537M steel plate standards, used in reactor vessels, storage tanks, and heat exchangers.

Compared to ASME SA537 Cl.1, it offers higher yield for thinner, cost-effective designs in demanding applications.

Chemical Composition of ASTM A537 Class 2

The composition emphasizes low carbon for weldability and manganese for hardenability.

In astm a537 class 2 boiler steel chemical composition details, silicon improves oxidation resistance, with tight controls on impurities to enhance performance.

Optional elements like molybdenum boost corrosion resistance if specified.

Composition table:

This supports applications in aggressive environments.

Mechanical Properties of ASTM A537 Class 2

A537 Class 2 provides high tensile for load-bearing in extreme conditions, with yield adjusting by thickness.

Per a537 cl.2 mechanical properties and density guide, it excels in high-pressure setups.

Properties table:

Impact testing ensures toughness at low temperatures.

Density and Delivery Condition

Density aligns with a537 cl.2 mechanical properties and density guide at 7.85 g/cm³ (7850 kg/m³).

Plates are delivered quenched and tempered, with Gangsteel offering PWHT simulation and ultrasonic inspection for quality assurance.

Available Specifications and Models

Gangsteel produces A537 Class 2 in various sizes to fit diverse designs:

• Thickness: 5mm to 150mm
• Width: 1000mm to 4500mm
• Length: 3000mm to 18000mm
• Specifications: Compliant with ASTM A537 Class 2 and ASME SA537 Class 2; custom beveling, cutting, and edge preparation available.

We also offer value-added services like HIC testing and Z-direction properties for thick plates, ensuring suitability for heavy-wall vessels.

Pricing Insights for ASTM A537 Class 2

As of September 29, 2025, current pricing for astm a537 class 2 pressure vessel plates ranges $800-3,000 per metric ton.

Standard plates (20-50mm) average $1,000-1,800/ton, with premiums for customized or tested variants.

In Asia, prices start at $900/ton; Europe/NA at $1,800-2,800.

Gangsteel provides quotes from $1,000/ton for bulk, factoring in raw materials and energy costs.

Equivalent Materials for ASTM A537 Class 2

Equivalents enable cross-standard use for global projects.

From the USA, ASME SA537 Class 2 is identical.

In the European Union, EN 10028-3 P460NH offers similar quenched and tempered properties with yield around 460 MPa.

Germany's DIN 17102 WStE460 or TStE460 provides comparable high strength and toughness for structural vessels.

Japan's JIS G3115 SPV490 is a high-strength boiler steel equivalent, with good weldability for pressure systems.

The UK's BS EN 10028-3 P460NH aligns closely, emphasizing elevated temperature service.

China's GB 713 15CrMoR matches in alloying for heat-resistant applications.

Korea's KS D 3560 SPV490 offers parallel mechanicals for industrial tanks.

France's AFNOR 15CD4-05 provides equivalent composition for welded equipment.

India's IS 2002 Gr.3 is a similar grade for boiler plates.

Australia's AS 1548 PT460N shares normalized/Q&T options for vessels.

Table:

These equivalents, per astm a537 class 2 international standards guide, ensure compatibility but require code verification.

Applications and Advantages in Boiler Systems

A537 Class 2 is ideal for petrochemical reactors, high-pressure boilers, and sour gas tanks.

It resists hydrogen cracking, supports thinner walls for cost savings, and welds easily with low-hydrogen electrodes.

In power plants, it handles steam pressures; in oil refining, corrosive fluids.

Advantages include fatigue resistance, extending service life by 20-30% over milder steels.

Frequently Asked Questions (FAQs) About ASTM A537 Class 2 Steel Plates

What is ASTM A537 Class 2 material?

ASTM A537 Class 2 is a quenched and tempered carbon-manganese-silicon steel plate for pressure vessels and boilers, offering high yield strength (60 ksi min) and tensile (80-100 ksi). It's heat-treated for superior toughness in high-pressure, low-temperature, or sour service environments, compliant with NACE when tested. Equivalent to ASME SA537 Class 2, it's used in demanding applications like reactors and tanks, allowing thinner designs for cost efficiency.

What is the difference between A537 Class 1 and Class 2?

A537 Class 1 is normalized (yield 50 ksi min), suitable for standard services with good weldability. A537 Class 2 is quenched and tempered (yield 60 ksi min), providing higher strength for extreme pressures or temperatures, with better impact resistance. Class 2 requires careful welding to avoid cracking due to hardness, but it reduces material thickness, saving costs. astm a537 class 2 mechanical properties overview shows its edge in sour gas applications.

What applications suit A537 Class 2 plates?

A537 Class 2 suits high-stress uses in oil/gas (sour separators), petrochemicals (reactors), and power (steam boilers). It's ideal for cryogenic tanks or vessels under cyclic loading, with HIC resistance for corrosive fluids. Offshore platforms and heat exchangers benefit from its toughness. Unlike Class 1, it's preferred for elevated temperatures up to 600°C, extending lifespan in harsh conditions.

Is A537 Class 2 equivalent to SA537 Class 2?

Yes, A537 Class 2 is equivalent to ASME SA537 Class 2, with identical composition (carbon 0.24% max) and properties (yield 60 ksi min). ASTM A537 is the material spec, while SA537 ensures ASME code compliance like Section VIII. International equivalents include EN P460NH and JIS SPV490; verify for projects.

What thickness ranges are available for A537 Class 2 plates?

A537 Class 2 ranges from 5mm to 150mm thick, with properties adjusting: yield 60 ksi (≤65mm), 55 ksi (65-100mm), 46 ksi (100-150mm). Gangsteel offers widths to 4500mm and lengths to 18000mm, with custom cuts. Thicker plates suit heavy-wall vessels, with Z-testing for integrity.

Does A537 Class 2 require impact testing?

Yes, Charpy V-notch testing is often mandatory, at -20°C or lower, ensuring 27J min energy for brittle fracture resistance. Critical for low-temp or sour services, Gangsteel provides tested plates compliant with API 934.

Can A537 Class 2 be used in sour service?

Yes, with HIC/SCC testing per NACE TM0284/TM0177, its low sulfur (0.035% max) minimizes cracking. Certified to NACE MR0175/ISO 15156, it's suitable for oil separators or scrubbers. Gangsteel offers HIC-resistant variants for aggressive media.

In summary, ASTM A537 Class 2 (A537 Cl.2) steel plates from Gangsteel deliver high strength and toughness for critical applications, with flexible specs and competitive pricing. Whether for boilers or vessels, our ASTM A537 Cl 2 steel plates ensure reliability—contact us to discuss your needs and get a quote today.

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