What is ASTM A516 Grade 70 Plates
The ASTM A516 Grade 70 specification is the Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower Temperature Service for plates with the intended service in welded pressure vessels where improved notch toughness is important. ASTM A516-70 and ASME SA516-70 steel plate products are made from carbon-manganese steels and produced to pressure vessel quality(PVQ) standards as delineated in ASTM A20/ASME SA20.
ASTM A516 is the standard specification for carbon steel plates used in pressure vessels for low to moderate temperature service. A516 Grade 70 is an excellent choice for service in lower than ambient temperature applications with excellent notch toughness and good weldability. This steel grade is used in both pressure vessel and industrial boilers and can withstand high pressure at different temperatures.
ASTM A516 Gr 70 Rolled Plate is a medium carbon alloy that contains manganese, phosphorus, sulfur, and silicon. These added alloying elements provide increased strength and versatility in highly demanding applications such as pressure vessels requiring moderate to lower temperatures where notch toughness is essential.
ASTM A 516 GR 70 Steel plate material is carbon steel plate which is used for pressure vessel. ASTM A516GR70 plates 40mm and under in thickness is normally supplied in the as-rolled condition.
The plates may be ordered normalized or stress relieved, or both. ASTM A516 grade plates over 40mm in thickness shall be normalized.
ASTM A516 Grade 70 Key Features
High Tensile Strength: Supports demanding applications with 485–620 MPa tensile strength.
Weldability: Ideal for fabricating complex structures like pressure vessels and boilers.
Low-Temperature Performance: Reliable at temperatures as low as -46°C.
Certified Quality: Third-party inspections (SGS, TUV, BV, ABS) and mill test certificates (MTC) for traceability.
Export Expertise: Seamless logistics for global markets, ensuring timely delivery.
Our A516GR70 steel plate for pressure vessels and boilers meets ASTM A516 Grade 70 standards, offering exceptional strength, weldability, and reliability at competitive A516GR70 carbon steel plate prices. Whether you need A516GR70 carbon steel bulk orders or custom solutions,
Gnee steel provides fast delivery, certified quality, and comprehensive export services.
Typical Applications
Oil & Gas: Pressure vessels, storage tanks, pipelines
Chemical Processing: Reactors, distillation columns
Power Generation: Boilers, heat exchangers, condenser shells
Construction: Structural components for bridges, buildings, and cryogenic structures
Transportation: Railcars, truck frames, trailers
Technical Specs for A516 Grade 70 Pressure Vessel Plates specification.
|
Items |
Range |
Notes |
|
Thickness |
6 mm - 200 mm |
Available in increments to suit applications like pressure vessels and boilers. Thicker plates (up to 200 mm) are suitable for heavy-duty A516 Gr 70 material applications. |
|
Width |
1500 mm - 4000 mm |
Standard widths range from 1500 mm to 2500 mm, with custom widths up to 4000 mm available upon request for A 516 Gr 70 projects. |
|
Length |
3000 mm - 18000 mm |
Lengths up to 12000 mm are common, with extended lengths up to 18000 mm for specialized ASTM A516 Gr 70 fabrications. |
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 7.80 g/cc | 0.282 lb/in³ | Typical of ASTM Steel |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength, Ultimate | 485 - 620 MPa | 70300 - 89900 psi | |
| Tensile Strength, Yield | 260 MPa | 37700 psi | |
| Elongation at Break | 17 % | 17 % | in 200mm |
| 21 % | 21 % | in 50mm | |
| Modulus of Elasticity | 200 GPa | 29000 ksi | Typical Carbon Steel |
| Bulk Modulus | 160 GPa | 23200 ksi | Typical for Steel |
| Poissons Ratio | 0.29 | 0.29 | Typical Carbon Steel |
| Shear Modulus | 80.0 GPa | 11600 ksi | Typical for Steel |
| ASTM A516 Grade 70 Chemical Component Elements Properties | Metric |
|---|---|
| Carbon, C | 0.31 % |
| Iron, Fe | 98.315 % |
| Manganese, Mn | 0.85 - 1.2 % |
| Phosphorus, P | 0.035 % |
| Silicon, Si | 0.15 - 0.40 % |
| Sulfur, S | 0.040 % |
1 What is ASTM A516GR70 used for?ASTM A516 Grade 70 (A516 Gr 70) steel plate is primarily used for pressure vessels, boilers, and storage tanks in the oil, gas, and chemical industries, due to its excellent strength, weldability, and crucial notch toughness at moderate and lower temperatures, making it ideal for handling pressurized fluids and gases in demanding environments like cryogenic applications (e.g., LNG storage) and power generation.
2How does ASTM A516GR.70 compare to ASTM A516GR60?
ASTM A516 Grade 70 (Gr. 70) is a stronger, higher-strength version of Grade 60 (Gr. 60), with Gr. 70 offering higher tensile/yield strength (e.g., min 70 ksi tensile vs. min 60 ksi) but slightly less ductility (lower elongation), requiring more care in welding (preheating) for thicker sections; Gr. 60 is better for moderate pressure, easier fabrication, and lower temps, while Gr. 70 excels in high-pressure, demanding applications like power boilers and vessels.
3 Are certifications provided?
Yes,Gnee steel provides mill test certificates (MTC) with all A516 GR 70 steel plates, ensuring compliance with A516GR70 steel plate ASTM standards.
4What is ASTM A516GR.70 equivalent to?
ASTM A516 Grade 70, a carbon steel for pressure vessels, is equivalent to ASME SA516 Grade 70, with common international counterparts being EN 10028 P355GH, BS1501 224-490 A & B, and JIS G3115 SPV490, all offering similar strength and weldability for demanding applications.
5What is the hardness of ASTM A516GR.70 ?
The hardness of ASTM A516 Grade 70 steel typically falls within 130–200 HB (Brinell Hardness), varying from 130–180 HB for as-rolled conditions to 140–200 HB when normalized, depending on heat treatment and processing, though it's often around 150-170 BHN in base metal and capped at 200 BHN for welds, especially in pressure vessel applications.
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