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

ASTM A516 Steel Plate Overview

ASTM A516 Steel Plate is a widely used carbon steel plate for welded pressure vessels, boilers, and storage tanks. It is specified for applications requiring stable mechanical properties, good weldability, and reliable notch toughness under moderate to high pressure conditions.

As an ASTM A516 steel plate supplier, CJM offers full-grade supply including Grade 55, Grade 60, Grade 65, and Grade 70, with flexible thickness options and export-ready logistics. All plates are supplied with mill test certificates and can be delivered in as-rolled or normalized condition based on project requirements.

For projects requiring higher strength and improved toughness, A516 Grade 70 steel plate is the most frequently selected option. CJM supports both stock availability and cut-to-length orders, helping buyers reduce lead time and procurement risk.

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.

ASTM A516 Steel Plate Dimensions & Processing Services

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

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.

Carbon steel plates used for pressure vessels are often sourced together with structural grades depending on the project scope. Buyers who require multiple specifications for boilers, storage tanks, or fabrication projects may also review our complete carbon steel plate supply range to compare structural and PVQ plates available for export.

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 Steel Plate

• Is SA516 the same as ASTM A516?
  Yes. SA516 is the ASME version of ASTM A516, and both refer to the same material used in pressure vessels and boilers. The primary difference is that SA516 is typically used for the ASME code requirements, while ASTM A516 is for more general applications.
• What is the most commonly used grade?
  ASTM A516 Grade 70 is the most widely applied grade due to its balance of strength, toughness, and excellent weldability. It is commonly used for high-pressure applications in boilers, pressure vessels, and storage tanks. For low-temperature applications, ASTM A516 Grade 70N is often specified.
• What thickness range can you supply for ASTM A516 steel plates?
  We supply ASTM A516 steel plates with thicknesses ranging from 6 mm to 150 mm, with custom cut-to-length services available. Whether you need standard or specialized thicknesses, we can meet your project requirements.
• Do you supply ASTM A516 steel plates with mill test certificates?
  Yes, all ASTM A516 steel plates are provided with EN 10204 3.1 mill test certificates, ensuring full material traceability and compliance with your specifications. This ensures the material’s compliance with international standards.
• When should I choose normalized material?
  Normalized ASTM A516 steel plates are recommended for thicker plates, low-temperature service, or when Charpy impact testing is specified by design codes. A516 Grade 70N is particularly useful for improving toughness in applications requiring high performance at lower temperatures.
• What is A516 Grade 70N?
  ASTM A516 Grade 70N is a normalized version of Grade 70 steel plate. It offers improved toughness and more uniform microstructure, making it ideal for thicker plates or applications that require low-temperature performance or impact resistance.

Request a Quote — ASTM A516 Steel Plate

Looking for a reliable ASTM A516 steel plate supplier for your boiler or pressure vessel project?
CJM supports stock supply, customized ASTM A516 steel plate orders, and export delivery of ASTM A516 steel plates across all grades.
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