A516 Gr70 (K02700) Carbon Steel Plate/Sheet – ASTM A36/A516/A572/A283; GB/T 700; JIS G3101; EN 10025
A516 Gr70 Carbon Steel (Pressure Vessel) is a premium-grade material manufactured to ASTM A36/A516/A572/A283; GB/T 700; JIS G3101; EN 10025 standards, available in Plate/Sheet form with K02700 UNS designation. Produced through Hot Rolled / Cold Rolled processes, this alloy delivers consistent mechanical properties and superior performance in demanding environments. Key applications include structural steel framing, bridge construction, pressure vessels, serving industries such as Construction, Shipbuilding, Oil & Gas. Core Metal Steel supplies A516 Gr70 Plate/Sheet in full compliance with ISO 9001:2015, CE Marking certifications, ensuring material traceability and quality assurance for critical service applications.
Product Specifications
| Material Family | Carbon Steel |
| Sub-Family | Pressure Vessel |
| Grade | A516 Gr70 |
| UNS Number | K02700 |
| Standard | ASTM A36/A516/A572/A283; GB/T 700; JIS G3101; EN 10025 |
| Product Form | Plate/Sheet |
| Manufacturing Process | Hot Rolled / Cold Rolled |
| Thickness Range | Sheet: 0.5-6 mm; Plate: 6-300 mm |
| Width Range | 1000-3000 mm |
| Length Range | 2000-12000 mm |
Chemical Composition
| Element | Composition (%) |
|---|---|
| C | 0.31 max |
| Mn | 0.85-1.20 |
| Si | 0.15-0.40 |
| P | 0.035 max |
| S | 0.035 max |
| Fe | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 485-620 |
| Yield Strength (MPa) | 260 min |
| Elongation (%) | 17 min (in 200 mm) |
| Impact Test (J) | 27 min at -46°C |
Key Features
- Manufactured in strict compliance with ASTM A36/A516/A572/A283; GB/T 700; JIS G3101; EN 10025 specifications for guaranteed quality and performance
- Available in Hot Rolled / Cold Rolled manufacturing processes to suit diverse application requirements
- Mechanical properties: 485-620 tensile strength, 260 min yield strength
- UNS designation K02700 — fully traceable material with mill test certification
- Certified to ISO 9001:2015, CE Marking standards for global market acceptance
- Available in hot-rolled and cold-rolled conditions with multiple surface finish options
Applications & Industries
| Application | Industry |
|---|---|
| Structural steel framing | Construction |
| Bridge construction | Shipbuilding |
| Pressure vessels | Oil & Gas |
| Ship hull plates | Infrastructure |
| Industrial platforms | Manufacturing |
| General fabrication | Mining |
At Core Metal Steel, we maintain extensive inventory of A516 Gr70 Carbon Steel Plate/Sheet products, ensuring rapid fulfillment for both standard and custom orders. Our Pressure Vessel grade Plate/Sheet products are sourced from certified mills and undergo rigorous quality inspection before shipment.
The A516 Gr70 grade is one of the most requested materials in the Carbon Steel category, valued for its balanced combination of structural steel framing, bridge construction performance. Whether your project requires standard dimensions or custom specifications, our technical team provides comprehensive support from material selection through delivery.
Surface finish options for A516 Gr70 Plate/Sheet include Hot Rolled (Black), Pickled & Oiled, Cold Rolled, Galvanized, Plasma Cut, Shot Blasted. Each finish is applied to meet specific application requirements, from hygienic food-grade surfaces to decorative architectural finishes. All products are supplied with mill test certificates (MTC) per EN 10204 3.1, documenting chemical composition and mechanical test results.
Our A516 Gr70 Plate/Sheet products carry ISO 9001:2015, CE Marking, ABS, DNV-GL, Lloyd’s Register certifications, providing assurance of material quality and compliance with international standards. We serve customers across Construction, Shipbuilding, Oil & Gas, Infrastructure sectors with consistent product availability and competitive pricing.
Frequently Asked Questions
What is the difference between A36 and A572 Gr50 steel?
A36 is a standard structural steel with a minimum yield strength of 250 MPa, suitable for general construction applications. A572 Gr50 is a high-strength low-alloy (HSLA) steel with a minimum yield strength of 345 MPa, offering approximately 40% higher strength. A572 Gr50 contains small amounts of columbium (niobium) and vanadium for grain refinement and precipitation strengthening, allowing lighter structures with equivalent load-bearing capacity.
What is A516 Gr70 steel used for?
A516 Gr70 is a pressure vessel quality steel plate designed for moderate and lower temperature service. It is widely used in the fabrication of pressure vessels, boilers, and heat exchangers in the oil and gas, petrochemical, and power generation industries. The grade designation ’70’ refers to its minimum tensile strength of 70 ksi (485 MPa). It is tested for impact resistance at low temperatures, making it suitable for cryogenic applications.
How does galvanized steel resist corrosion?
Galvanized steel is coated with a layer of zinc through hot-dip galvanizing or electro-galvanizing. The zinc coating provides corrosion protection through two mechanisms: barrier protection (the zinc physically blocks oxygen and moisture from reaching the steel substrate) and sacrificial (cathodic) protection (zinc corrodes preferentially to steel, protecting exposed areas even if the coating is damaged). Typical zinc coating weights range from Z90 to Z275 (90-275 g/m²).
What is the difference between Q235 and SS400?
Q235 (GB/T 700, Chinese standard) and SS400 (JIS G3101, Japanese standard) are both general structural steels with similar mechanical properties. Both have minimum yield strengths around 235-245 MPa and tensile strengths of 370-510 MPa. The main differences are in the standard specifications and some minor chemical composition requirements. They are often considered equivalent in practical applications and can be substituted for each other in non-critical structural uses.
Is AH36 suitable for shipbuilding?
Yes, AH36 is specifically designed for shipbuilding applications and is certified by classification societies such as ABS, DNV-GL, Lloyd’s Register, and BV. The ‘AH’ designation indicates that it is a high-strength hull structural steel with a minimum yield strength of 355 MPa. The ’36’ refers to its strength grade in kgf/mm². It provides excellent toughness at low temperatures and is used for hull structures, decks, and offshore platforms.
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