SA-516 Gr 70: properties, composition, uses and standards
SA-516 Gr 70 is a carbon steel pressure-vessel plate, chosen for boilers, pressure vessels and storage tanks., density 7.85 g/cm³.
What is SA-516 Gr 70?
SA-516 Gr 70 is a carbon steel pressure-vessel plate. Engineers choose it for boilers, pressure vessels and storage tanks. It is also known as ASTM A516 Gr 70, Boiler-quality (BQ) plate, Pressure-vessel plate.
- Designation
- SA-516 Gr 70
- Also called
- ASTM A516 Gr 70 · Boiler-quality (BQ) plate · Pressure-vessel plate
- Standard
- ASTM A516 Grade 70
- Density
- 7.85 g/cm³
- Melting range
- 1420 – 1530 °C
- Magnetic
- Magnetic
Chemical composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Phosphorus | As specified |
| Sulphur | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A516 Grade 70.
Mechanical properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength | As specified |
| Elongation (50 mm) | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A516 Grade 70 — condition per order.
Where SA-516 Gr 70 is used
- Pressure vessels. Shells and heads. Industry →
- Boilers. Drums and headers. Industry →
- Storage tanks. Oil and gas storage. Industry →
Welding 516-70
The matching filler is E7018 / ER70S-6. Normalised plate (A516 N) for thick or impact-tested vessels.
SA-516 Gr 70 standards by product
| Product | Standard |
|---|---|
| SA-516 Gr 70 plate | ASTM A516 Gr 70 · ASME SA-516 |
Buying SA-516 Gr 70: what to specify
- The product standard and the UNS or designation — for example ASTM A516 Gr 70 · ASME SA-516.
- Size, thickness or schedule, and quantity in pieces and kg or metres.
- Heat-treatment condition where the standard offers a choice.
- Certificate: EN 10204 3.1 or 3.2 available on request / as specified in the PO; ask for 3.2 if a third party must witness.