ASTM A516 Grade 70 is a premium carbon steel widely used for moderate and lower-temperature pressure vessels and boilers. Global pricing ranges from $500 to $1,200+ per ton depending on the thickness and mill source. Key global equivalents include European EN 10028-3 P355GH and British BS 1501-223-490B.

A516 GR70 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.
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. |
ASTM A516 Grade 70 steel price
Pricing fluctuates based on global supply, demand, and raw material availability.
- Global Market Ranges: $500 to $1,350 per ton, translating roughly to$0.65 to $1.50per kilogram.
- USA/European Markets: Typically ranges from $2.33 to $3.11 per kilogram due to higher logistical and processing costs.
- Asian Markets: Lower base costs, averaging $718to $764 per ton for mid-range thickness (e.g., 8mm–25mm).
A516 Grade 70 Chemical Composition
| A516 Grade 70 Chemical Composition | |||||
|
Grade |
The Element Max (%) |
||||
|
C |
Si |
Mn |
P |
S |
|
|
A516 grade 70 |
|
|
|
|
|
|
Thick 12.5mm |
0.27 |
0.13-0.45 |
0.79-1.30 |
0.035 |
0.035 |
|
Thick12.5-50mm |
0.28 |
0.13-0.45 |
0.79-1.30 |
0.035 |
0.035 |
|
Thick50-100mm |
0.30 |
0.13-0.45 |
0.79-1.30 |
0.035 |
0.035 |
|
Thick100-200mm |
0.31 |
0.13-0.45 |
0.79-1.30 |
0.035 |
0.035 |
|
Thick>200mm |
0.31 |
0.13-0.45 |
0.79-1.30 |
0.035 |
0.035 |
|
Element |
Percentage (%) |
|
Carbon (C) |
0.27 max |
|
Manganese (Mn) |
0.85–1.20 |
|
Phosphorus (P) |
0.035 max |
|
Sulfur (S) |
0.035 max |
|
Silicon (Si) |
0.15–0.40 |
|
Nickel (Ni) |
0.40 max (optional) |
|
Chromium (Cr) |
0.30 max (optional) |
|
Molybdenum (Mo) |
0.08 max (optional) |
ASTM A516 Grade 70 Mechanical Property
Grade |
|
A516 Grade 70 Mechanical Property |
||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
A516 grade 70 |
mm |
Min Mpa |
Mpa |
Min % |
|
6-40 |
260 |
485-620 |
21% |
|
|
40-100 |
260 |
485-620 |
17% |
|
ASTM A516 Grade 70 steel Equivalent Grade
ASME |
ASTM |
DIN 17155 |
EN 10028 |
BS1501 |
|
|
|
|
|
Name |
Number |
|
|
SA516Gr60 |
A516Gr60 |
HII |
P265GH |
1.0425 |
161 430A |
|
SA516Gr65 |
A516Gr65 |
17Mn4 |
P295GH |
1.0481 |
|
|
SA516Gr70 |
A516Gr70 |
|
P355GH |
|
224-490 A & B |
Application of Pressure steel plate ASTM A516 GR 70
ASTM A516GR70 steel plate is versatile, meeting the needs of various industries:
- Pressure Vessels: Widely used for ASTM A516GR70 steel sheet for pressure vessels in oil, gas, and petrochemical sectors due to its high strength and toughness.
- Boilers: Preferred for ASTM A516GR.70 steel material for boilers, offering excellent heat resistance and durability.
- Storage Tanks: Suitable for large-scale storage of liquids and gases.
- Industrial Equipment: Applied in heat exchangers, pipelines, and structural components for energy and manufacturing projects.
- Marine Industry: Used in applications requiring robust materials.






Material Characteristics
Composition: Low-carbon steel with controlled manganese and silicon contents, which deliver high yield and tensile strength without sacrificing weldability.
Testing: Often ordered with NACE, HIC (Hydrogen Induced Cracking), or EN 10204 3.1/3.2 mill certificates for critical oil, gas, and petrochemical applications.
Contact GNEE steel for ASTM A516GR70 Steel Plate Export
GNEE STEEL is your trusted high-quality A516GR70 steel plate supplier, delivering ASTM-compliant A516GR70 steel plates for pressure vessels, boilers, and industrial applications worldwide. With extensive inventory, global logistics, and a commitment to quality, we ensure your projects succeed.
FAQs
What is ASTM A516GR70 used for?
A516GR70 steel plateis primarily used for A516GR70 steel plate for pressure vessels and A516GR70 steel plate for boilers, offering high strength and toughness in petrochemical, energy, and marine applications.
How does ASTM A516GR.70 compare to ASTM A516GR60?
A516GR70 offers higher tensile and yield strength than A516GR60 pressure vessel steel, making it suitable for higher-pressure environments while maintaining similar weldability.
What is ASTM A516 grade 70 equivalent to?
P355GH
ASTM A516 Grade 70 is a boiler / pressure vessel quality of steel plate for use in low to moderate services. It has improved notch toughness. A516 GD70 steel plate is equivalent to the P355GH and 490B grades.
What is the difference between A36 and A516 GR 70?
ASTM A516 GR 70 outperforms ASTM A36 in tensile strength, low-temperature toughness, and pressure vessel applications, while A36 is better suited for general structural uses.
What is the allowable stress for A516 GR 70?
The allowable stress for SA516 GR70 is approximately 138 MPa (20 ksi) at room temperature, per ASME Section VIII, depending on temperature and design.
What is the difference between ASTM A516 GR 70 and ASTM A572 GR 50?
A516 Gr. 70 is a pressure vessel steel, while A572 Gr. 50 is a high-strength structural steel. They are not interchangeable.
What is the difference between A516 60 and A516 70?
Grade 60 is a more economical choice for applications that don't require high strength. Use A516 Grade 60: If your application involves moderate pressure or lower strength requirements. Use A516 Grade 70: If higher strength and durability are critical, such as for large boilers or vessels operating under high pressure




