ASTM A516 Steel Plate Supplier for Pressure Vessels (Grade 55–70)

ASTM A516 Steel Plate Overview

ASTM A516 Steel Plate is a carbon steel plate commonly used in welded pressure vessels, boilers, and storage tanks. CJM supplies ASTM A516 steel plates in full grades 55, 60, 65, and 70, offering fast delivery, competitive pricing, and full mill test documentation for all orders.

For projects requiring higher strength and improved toughness, A516 Grade 70 steel plate is the most frequently selected option. Our inventory includes ready-to-ship plates and customized solutions, ensuring an efficient purchasing.

ASTM A516 Steel Plate Supplier & Export Capabilities

As an experienced steel plate exporter, CJM supplies ASTM A516 steel plates to EPC contractors, pressure vessel fabricators, and distributors worldwide. Our products are sourced from qualified mills and supplied with full material traceability, including mill test certificates.

We offer:

• Full grade range: A516 Grade 55 / 60 / 65 / 70
• Competitive pricing for bulk and project orders
• Custom cutting, beveling, drilling, and profiling services
• Fast export delivery to Southeast Asia, the Middle East, Europe, Africa, and the Americas

For buyers sourcing multiple vessel materials, our Pressure Vessel Steel Plate category provides a complete overview of available grades and specifications.

Dimensions & Processing Capabilities of ASTM A516 Steel Plates

• Thickness: 6 mm – 150 mm
• Width: up to 3000 mm
• Length: up to 12,000 mm
• Process options: beveling, cutting, drilling, profiling, rolling, surface treatments
• Edge: Mill edge or cut edge
• Surface Condition: Hot rolled, shot blasted, or pickled

Custom sizes and cut-to-length service available. Suitable for bulk orders and project-based supply of A516 steel plates.

Available Grades — A516 Grade 55 / 60 / 65 / 70 Steel Plate

1. ASTM A516 Grade 55 Steel Plate

A516 Grade 55 steel plate is typically selected for lower-pressure vessels and boilers where moderate strength requirements apply. It offers good weldability and cost efficiency for standard pressure applications.

2. ASTM A516 Grade 60 Steel Plate

A516 Grade 60 steel plate provides improved tensile strength and notch toughness compared with Grade 55. It is commonly specified for medium-pressure vessels, storage tanks, and heat exchangers where moderate-to-high performance is required.

3. ASTM A516 Grade 65 Steel Plate

A516 Grade 65 steel plate is used when higher strength is required without significantly increasing plate thickness. It is commonly specified for larger vessel shells and pressure-retaining components.

4. ASTM A516 Grade 70 Steel Plate

A516 Grade 70 steel plate is the most widely used grade for pressure vessels and boilers. It offers higher strength, good notch toughness, and stable welding performance. For thicker plates or low-temperature service, A516 Grade 70 normalized plate (A516 Grade 70N) is often specified.

Delivery Condition — As-Rolled vs Normalized A516 Steel Plate

ASTM A516 steel plates can be supplied in different delivery conditions depending on project requirements:

• As-Rolled A516 Steel Plate
  Suitable for standard pressure vessel fabrication with shorter production lead times.
• Normalized A516 Steel Plate (Including A516 Grade 70N)
  Provides improved toughness and a more uniform microstructure. Normalized plates are recommended for thicker sections, low-temperature service, or when Charpy V-notch impact testing is specified by design codes.

Chemical Composition — ASTM A516 Steel Plate

Element	Grade 55 (%)	Grade 60 (%)	Grade 65 (%)	Grade 70 (%)
Carbon (C)	≤0.18	≤0.21	≤0.24	≤0.27
Manganese (Mn)	0.85–1.20	0.85–1.20	0.85–1.20	0.85–1.20
Phosphorus (P)	≤0.035	≤0.035	≤0.035	≤0.035
Sulfur (S)	≤0.035	≤0.035	≤0.035	≤0.035
Silicon (Si)	0.13–0.45	0.13–0.45	0.13–0.45	0.13–0.45

Mechanical Properties of ASTM A516 Steel Plate

Grade	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
A516 Gr 55	≥220	380–515	≥21
A516 Gr 60	≥260	415–550	≥21
A516 Gr 65	≥260	450–585	≥19
A516 Gr 70	≥260	485–620	≥17

Typical Applications of ASTM A516 Steel Plate

ASTM A516 steel plates are widely used in:

• Industrial boilers & steam drums
• Petrochemical pressure vessels
• LPG & LNG storage tanks
• Heat exchangers and condenser units
• Power generation equipment
• Pressure tanks and separators

A516 Grade 70 remains the most used grade for high-pressure welded structures, but many fabricators also choose Grade 60 or Grade 65 depending on the design requirements.

For buyers comparing vessel materials across different grades, see our Pressure Vessel Steel Plate Comparison Guide to better understand applications, toughness, and fabrication requirements.

Packaging & Shipping

• Bundled with steel strips
• Waterproof wrapping & edge protection
• Wooden pallets or as per buyer request
• Shipping by container or bulk vessel

FAQ — ASTM A516 / ASME SA516

• Is SA516 the same as ASTM A516?
  Yes. SA516 is the ASME version, ASTM A516 is the ASTM version.
• What is the most commonly used grade?
  A516 Grade 70 is the most widely applied due to its strength and toughness.
• When should I choose normalized material?
  For thicker plates, low-temperature service, or when Charpy impact requirements are specified.
• What is A516 Grade 70N?
  A normalized version of A516 Grade 70. It provides better toughness and is recommended when Charpy impact requirements are specified.

Request a Quote — ASTM A516 Steel Plate

Ready to source ASTM A516 Steel Plate for your boiler or pressure vessel project? We support both stock supply and customized ASTM A516 steel plate orders for pressure vessel fabrication.
Contact us to get your free quote and mill certificate.

If you also work with general structural steels, see our guide to A36 vs A283 vs A572 vs A516 Steel Plate: Key Differences and Equivalents for comparison.

Q: What is your company’s main products/services?

A: We are a professional manufacturer for Carbon Steel, Alloy Steel and Profile products. We have the experience of steel business for more than 10 years and our products are exported to Mid East,South America,Southeast Asia,Africa,South and East Asia etc.

Q: Can I go to your factory for a visit?

A: Of course, we welcome customers from all over the world to visit our factory.

Q: What are your terms of payment?

A: 30% T/T deposite and 70% balance before shipment.

Q: What is your delivery time?

A: For stocks,we could transport the goods to loading port within 7 days after we received the deposit; For production,it usually takes about 15-30 days after receiving the deposit.

Q: Do you provide samples? Are they free or paid?

A: Samples are available for free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?

A:Yes, we fully accept ‌third-party inspections.

Q: Why should I buy from you not from other suppliers?

A: Integrating the superior resources of China’s steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

Q:How can you guarantee quality?

A: Always a pre-production sample before mass production;Always 100% inspected before shipment