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

ASTM A516 / SA516 Steel Plate Supplier for Pressure Vessels

Looking for a reliable ASTM A516 steel plate supplier for pressure vessel or boiler projects?

CJM supplies ASTM A516 / ASME SA516 steel plates in Grade 55, Grade 60, Grade 65, and Grade 70, with stable stock, flexible sizing, and fast global delivery. All plates are sourced from qualified mills and delivered with EN 10204 3.1 mill test certificates (MTC) to ensure full traceability.

We support EPC contractors, pressure vessel fabricators, and steel distributors with:

• Stock supply of A516 Grade 70 steel plate (most demanded grade)
• Custom cut-to-length and processing services
• Competitive pricing for bulk and project orders
• Export delivery to Southeast Asia, Middle East, Europe, Africa, and Americas

For high-pressure applications, SA516 Grade 70 steel plate remains the most widely selected material due to its strength and toughness balance.

ASTM A516 Steel Plate Dimensions & Stock Availability

• Thickness: 6 mm – 150 mm
• Width: up to 3000 mm
• Length: up to 12,000 mm
• Edge: Mill edge or cut edge
• Surface: Hot rolled / shot blasted / pickled

We maintain stock for common specifications of A516 Grade 70 plates, helping reduce procurement lead time.

Custom sizes and cut-to-length services are available for project orders.

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

Available Grades: ASTM A516 Grade 55 / 60 / 65 / 70 Steel Plate

We supply the full range of ASTM A516 pressure vessel steel plates:

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.

Processing Services for A516 Steel Plates

To support fabrication requirements, we offer:

• CNC cutting and flame cutting
• Beveling and edge preparation
• Drilling and profiling
• Plate rolling and forming
• Surface treatment and blasting

These services help buyers receive ready-to-use pressure vessel steel plates, reducing workshop workload.

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 / SA516 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

Among all grades, A516 Grade 70 steel plate is the preferred choice for high-pressure welded structures.

In projects involving temperature considerations, material selection becomes critical. You can review our A387 vs A516 steel plate comparison for a clearer understanding.

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 & Export Delivery

We provide professional export packaging for A516 steel plates:

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

FAQ — ASTM A516 / SA516 Steel Plate Supplier

• Is SA516 the same as ASTM A516?
  Yes. ASME SA516 is the equivalent of ASTM A516 used under ASME code requirements for pressure vessels.
• What is the most commonly used grade?
  A516 Grade 70 steel plate is the most widely used due to its strength, toughness, and weldability.
• Do you have A516 Grade 70 plates in stock?
  Yes, we maintain stock for common sizes of A516 Grade 70 steel plates, supporting fast delivery.
• Do you provide mill test certificates?
  All plates are supplied with EN 10204 3.1 MTC, ensuring compliance and traceability.
• When should I choose normalized A516 steel plate?
  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.

Request a Quote — ASTM A516 Steel Plate Supplier

Looking for a reliable ASTM A516 / SA516 steel plate supplier?
CJM supports stock supply, custom processing, and global export delivery of A516 Grade 55 / 60 / 65 / 70 steel plates.
Contact us to get your free quote.

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