astm a537 class 1 (a537 cl.1) steel plates supplier

ASTM A537 Class 1 (A537 Cl.1) Steel Plates supplier

In the demanding world of pressure vessel and boiler manufacturing, selecting the right material is critical for ensuring safety, durability, and performance under high-pressure conditions.

At Gangsteel, we are a premier supplier of ASTM A537 Class 1 (A537 Cl.1) steel plates, a normalized carbon-manganese-silicon steel under the ASTM A537/A537M standard.

This material, equivalent to ASME SA537 Cl.1, excels in moderate-temperature applications, offering excellent toughness and weldability.

Gangsteel delivers high-quality plates for industries like oil and gas, petrochemicals, and power generation.

This guide from Gangsteel explores A537 Class 1’s properties, applications, and equivalents, with comparisons to ASTM A 537 Cl 2 steel plate and ASTM A 537 Cl 3 steel plate.

What is ASTM A537 Class 1 (A537 Cl.1) Steel Plates?

ASTM A537 Class 1 is a heat-treated steel designed for welded pressure vessels and boilers, known for its balanced strength and notch toughness.

Normalization—heating to ~900°C and air cooling—enhances its microstructure, making it ideal for low-temperature services and sour gas environments.

Gangsteel’s plates meet ASME SA537/SA537M steel plate standards, used in boiler drums, storage tanks, and heat exchangers.

Compared to ASME SA 537 Class 2, it’s suited for less demanding pressures but offers cost-effective designs.

Chemical Composition of ASTM A537 Class 1

Per asme sa537 class 1 boiler steel chemical composition details, A537 Class 1 has low carbon for weldability and manganese for strength.

Composition table:

This ensures sa 537 cl.1 mechanical properties and density guide compliance.

Mechanical Properties of ASTM A537 Class 1

A537 Class 1 offers robust properties for pressure containment.

Per astm a537 class 1 yield strength specifications, it’s reliable for standard vessels.

Properties table:

Impact testing ensures toughness at -20°C.

Density and Delivery Condition

Density is 7.85 g/cm³, aiding design calculations.

Delivered normalized, Gangsteel offers testing like HIC for NACE compliance.

Available Specifications and Models

Gangsteel supplies A537 Class 1 in:

• Thickness: 6-300mm
• Width: up to 3500mm
• Length: up to 18000mm
• Compliant with ASME SA 537 Class 1

Custom cuts and certifications available.

Pricing Insights for ASTM A537 Class 1

Current pricing for asme sa537 class 1 pressure vessel platesas of September 29, 2025, ranges $600-3,000/ton.

Standard 20-50mm plates: $800-1,200/ton in Asia; $1,500-2,000 in Europe/NA.

Bulk discounts apply; contact Gangsteel for buy astm a537 class 1 boiler quality steel online.

Equivalent Materials for ASTM A537 Class 1

Equivalents support global sourcing.

Key matches include:

• USA: ASME SA537 Class 1, ASTM A671 Gr. CD70
• EU: EN 10028-2 P355GH
• Germany: DIN 17155 19Mn6
• Japan: JIS G3115 SPV355
• UK: BS 1501 224-490A/B
• China: GB 713 16MnR
• Korea: KS D 3560 SPV355

Table:

astm a537 class 1 equivalent materials comparisonensures compatibility.

Applications and Advantages

A537 Class 1 is ideal for sour service tanks and cryogenic vessels, offering HIC resistance.

It enables thinner walls, saving 10-15% on material costs, and welds easily.

Compare with ASME SA 537 Class 3 for intermediate needs.

Frequently Asked Questions (FAQs) About ASTM A537 Class 1 Steel Plates

What is ASTM A537 Class 1 material?

ASTM A537 Class 1 is a normalized carbon-manganese-silicon steel plate for welded pressure vessels and boilers. It’s heat-treated to enhance toughness, offering a minimum yield strength of 50 ksi (345 MPa) and tensile strength of 70-90 ksi (485-620 MPa). Ideal for moderate-temperature services, it resists low-temperature impacts and sour gas cracking when HIC-tested, making it a reliable choice for oil, gas, and power applications.

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

A537 Class 1 is normalized for balanced toughness (yield 50 ksi), suitable for standard boilers. A537 Class 2 is quenched and tempered, providing higher yield (60 ksi min) for high-pressure or low-temperature services. Class 2 requires stricter welding controls due to higher hardness but allows thinner designs. astm a537 class 2 mechanical properties overview highlights its edge in demanding conditions.

What are the applications of A537 Class 1 plates?

Used in boiler drums, storage tanks, and heat exchangers, A537 Class 1 excels in oil and gas (e.g., sour service separators), petrochemical reactors, and power plant vessels. Its toughness suits cryogenic applications, and astm a537 class 1 pressure vessel steel specifications ensure compliance with codes like ASME Section VIII.

Is A537 Class 1 equivalent to ASME SA537 Class 1?

Yes, ASTM A537 Class 1 is identical to ASME SA 537 Class 1, with ASME adopting ASTM specs for code compliance. International equivalents include EN P355GH and JIS SPV355, per astm a537 class 1 equivalent materials comparison.

What thickness ranges are available for A537 Class 1?

Gangsteel offers thicknesses from 6mm to 300mm, widths up to 3500mm, and lengths to 18000mm. Properties adjust slightly for thicker plates (yield 45 ksi >65mm). Custom cuts and Z-direction testing are available for complex fabrications.

Does A537 Class 1 require impact testing?

Yes, Charpy V-notch testing is often required, typically at -20°C or lower, ensuring 27J minimum energy for low-temperature toughness. This is critical for cryogenic or sour service applications, as noted in sa 537 cl.1 low temperature toughness properties.

Can A537 Class 1 be used in sour service?

Yes, with HIC and SCC testing per NACE TM0284/TM0177, it’s suitable for sour environments like oilfield separators. Gangsteel’s low-sulfur plates (0.035% max) minimize cracking risks, ensuring durability.

In summary, ASTM A537 Class 1 from Gangsteel combines strength, toughness, and weldability for reliable pressure vessel applications. Whether you need plates for standard boilers or sour service tanks, our ASTM A537 Cl 1 steel plates meet global standards. Contact us for competitive quotes and tailored solutions to elevate your projects.

astm a537 class 1 yield strength specifications, asme sa537 class 1 boiler steel chemical composition details, current pricing for asme sa537 class 1 pressure vessel plates