Learn About the Latest ASTM A516 Steel Plate Price, Specifications and Dimensions.
ASTM A516 Grade 70 Steel Plate Supplier | Pressure Vessel & Boiler Steel Plate
ASTM A516 Grade 70 is a carbon steel plate rolled to the ASTM A516 / A516M standard. It's a pressure vessel grade, and it's usually the pick when the equipment will hold pressure and the design calls for more strength than Grade 60 can offer.
The numbers tell the story: minimum yield strength of 260 MPa, tensile strength of 485–620 MPa. That's a step up from A516 Grade 60, and it's why the grade keeps showing up in pressure vessels, storage tanks, boilers, and other fabricated industrial equipment.
| Item | Specification |
| Steel Grade | ASTM A516 Grade 70 |
| Applicable Standard | ASTM A516 / A516M |
| Minimum Yield Strength | ≥260 MPa |
| Tensile Strength | 485–620 MPa |
| Standard Thickness | 3/8"–1" (9.53–25.40 mm) |
| Standard Width | 48"–96" (1220–2438 mm) |
| Standard Length | 96"–480" (2438–12192 mm) |
| Maximum Length | Up to 1020" (25,910 mm) |
| Product Type | Pressure Vessel Steel Plate |
| Typical Applications | Pressure vessels, storage tanks, boilers |
Technical Data
ASTM A516 Gr.60 / Gr.70 Steel Plate Chemical Composition
| Grade | C (Carbon) | Mn (Manganese) | P (Phosphorus) | S (Sulfur) | Si (Silicon) | Cu (Copper) | Ni (Nickel) | Cr (Chromium) | Mo (Molybdenum) |
| Gr.60 | 0.27 max | 0.80 – 1.20 | 0.035 max | 0.035 max | 0.15 – 0.35 | 0.20 max | 0.30 max | 0.20 max | 0.08 max |
| Gr.70 | 0.30 max | 0.85 – 1.25 | 0.035 max | 0.035 max | 0.15 – 0.35 | 0.30 max | 0.40 max | 0.20 max | 0.08 max |
ASTM A516 Steel Plates Mechanical Property
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
| Gr.60 | 260 min | 415 – 550 | 21 min | 130 – 170 |
| Gr.70 | 310 min | 485 – 620 | 18 min | 140 – 180 |
ASTM A516 Gr.60 / Gr.70 Steel Plate Sizes
| Steel Grade | Standard Thickness | Standard Width | Standard Length | Max Length |
| A516 Gr60 | 3/8"‑1" (9.53‑25.40 mm) | 48"‑96" (1220‑2438 mm) | 96"‑480" (2438‑12192 mm) | 1020" (25910 mm) |
| A516 Gr70 | 3/8"‑1" (9.53‑25.40 mm) | 48"‑96" (1220‑2438 mm) | 96"‑480" (2438‑12192 mm) | 1020" (25910 mm) |
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Higher‑strength option for pressure‑bearing equipment
Compared with A516 Grade 60, Grade 70 delivers improved mechanical strength. This makes it a practical choice for pressure equipment and heavy‑duty industrial fabrication projects, where high material strength is a core design consideration.
Trusted material for pressure vessel construction
This steel grade is widely specified for pressure‑vessel service. It sees frequent use in the production of storage tanks, boilers and custom‑built fabricated pressure vessels.
Well‑suited for large‑volume fabrication work
A516 Gr 70 steel plates come in a broad range of available widths and lengths tailored for industrial fabrication. Manufacturers can make better use of raw material and arrange nesting layouts more efficiently.
Flexible processing to match project needs
Apart from standard stock sizes, plates can also be machined per customer drawings. Value‑added services such as cutting and other fabrication support are available upon request.
Deployed across a wide range of industry sectors
A516 Gr 70 caters to many sectors requiring pressure‑grade steel plate. Typical end‑uses cover oil and gas, petrochemicals, power plants, chemical processing, as well as general heavy industrial machinery.
For buyers comparing pressure vessel steel grades, A516 Grade 60 is attractive because it combines moderate strength, pressure-service suitability, good fabrication characteristics and broad industrial applicability.
Compared with general structural steel plates, pressure vessel grades are specifically selected for equipment where material reliability under pressure is a major design consideration.
For projects involving tanks, vessels or boiler equipment, buyers should evaluate not only the nominal steel grade but also:
Plate thickness
Plate dimensions
Heat treatment condition
Impact testing requirements
Ultrasonic testing requirements
Chemical composition
Welding procedure
Surface condition
Mill Test Certificate requirements
Pressure Vessels
A516 Gr 70 is a go‑to material for building pressure vessel parts, such as shells, heads and other critical pressure‑holding components.
Storage Tanks
This steel plate works well for industrial storage tanks built to hold liquids, gases and different process media.
Boilers
It is also a common choice for boilers and thermal processing units, whenever project specifications call for pressure‑vessel‑quality steel plate.
Industrial Equipment
Beyond the above, it is frequently applied for custom‑built process machinery and heavy‑duty structures under internal pressure.
Royal Steel Group supplies carbon steel plates and pressure vessel steel products for international industrial projects. Our supply service covers material sourcing, quality inspection, plate processing, export packaging and international shipping.
For A516 Gr 60 projects, buyers can provide the required:
Thickness + Width + Length + Quantity + Surface Condition + Inspection Requirements
Based on these parameters, a suitable quotation and production plan can be prepared.
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Royal Steel Group offers value‑added processing services for ASTM A516 Grade 70 steel plates, tailored to customer drawings and specific project demands.
Our available processing scope covers:
Cutting: Cut‑to‑length service and custom‑size cutting to match your part dimensions.
Edge Preparation: Edge beveling and edge finishing work ready for subsequent welding and fabrication.
Drilling & Machining: Drilling and mechanical machining services to meet assembly and manufacturing needs.
Surface Treatment: Surface finishing carried out in line with agreed technical specifications.
Custom Dimensions: Non‑standard plate sizes are feasible, subject to production capacity and order parameters.
A516 Gr 70 steel plates are packed following international export standards to suit overseas shipment.
We normally secure cargo with steel strapping, waterproof wrapping and reinforced bundling. This packaging helps reduce shifting and prevents surface scratches or damage throughout handling and sea transit.
We support both containerized and bulk shipment arrangements. The shipping method will be determined by plate sizes, order quantity, destination port and your specific requirements.
1. What are the mechanical properties of ASTM A516 Grade 70 steel plate?
ASTM A516 Grade 70 features a minimum yield strength of 260 MPa, with a tensile strength ranging from 485 MPa to 620 MPa. All mechanical parameters comply with industry standard requirements. For precise and valid data, we recommend verifying with the latest official version of ASTM A516/A516M specifications and the customized terms of your purchase contract.
2. What sizes are available for A516 Grade 70 steel plate?
We supply a comprehensive range of standard plate sizes. The conventional thickness covers 9.53mm to 25.40mm (3/8 inch to 1 inch), width spans 1220mm to 2438mm (48 inch to 96 inch), and length ranges from 2438mm to 12192mm (96 inch to 480 inch). Custom extended lengths and non-standard dimensions are also available, subject to specific production conditions and order demands.
3. What is ASTM A516 Grade 70 steel plate used for?
This carbon steel plate is a mainstream material for pressure-bearing industrial equipment. It is widely applied in the manufacturing of pressure vessels, industrial storage tanks, boilers and other heavy-duty containment facilities. Thanks to its superior strength performance, it is especially ideal for engineering projects that require high structural strength and stable pressure resistance.
4. Can A516 Grade 70 steel plate be cut to custom sizes?
Absolutely. We offer both standard-size finished plates and fully customized dimension processing services. In accordance with customer drawings and technical standards, we can provide precision cutting, edge finishing and a full set of supporting fabrication processes to meet diverse project construction and assembly needs.
5. Can you provide MTC and third-party inspection for A516 Grade 70?
Full quality certification support is available for all our products. We can provide official Mill Test Certificates (MTC) and complete quality documents as required by orders. Meanwhile, we support customized quality inspection solutions, including third-party verification, ultrasonic testing and other professional quality checks, to fully meet buyer requirements and project specification standards.
ROYAL STEEL GROUP
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Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
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