SA-516 Gr 70 Boiler-quality PlateASTM A516 · ASTM A20 · Manufacturer, stockist & exporter, India
ASTM A516 Gr 70 · Boiler-quality (BQ) plate
An SA-516 Gr 70 boiler-quality plate is pressure-vessel plate for boilers and vessels, made from SA-516 Gr 70 to ASTM A516 Gr 70 · ASME SA-516. Boiler-quality (BQ) plate is carbon or chrome-moly steel plate made to pressure-vessel specifications, with controlled chemistry and tested properties.
- ASTM A516
- ASTM A20
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SA-516 Gr 70 Boiler-quality Plate?
- What it is
- Pressure-vessel plate for boilers and vessels
- Material
- ASTM A516 Gr 70 · ASME SA-516
- Dimensions
- ASTM A20 · A516 · A387
- Grade
- SA-516 Gr 70
- Best at
- Boilers, pressure vessels and storage tanks
SA-516 Gr 70 Boiler-quality Plate Specification
| Product | SA-516 Gr 70 Boiler-quality Plate |
|---|---|
| Material standard | ASTM A516 Gr 70 · ASME SA-516 |
| Dimensional standard | ASTM A20 · A516 · A387 |
| Thickness | 4.76 mm (3/16") and up |
| Size | Mill plates or cut to drawing |
| Testing | Chemical & mechanical per heat · NDT · impact where specified |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Boiler-quality Plate
Boiler-quality (BQ) plate is carbon or chrome-moly steel plate made to pressure-vessel specifications, with controlled chemistry and tested properties.
- SA-516, SA-387 and similar
- Normalised on request
- UT and impact tests
More on choosing: Boiler-quality plate guide.
SA-516 Gr 70 Boiler-quality Plate: Why 516-70 for boiler-quality plates
Boiler-quality (BQ) plate is carbon or chrome-moly steel plate made to pressure-vessel specifications, with controlled chemistry and tested properties. In SA-516 Gr 70, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Carbon and low-alloy plate is the workhorse of pressure vessels and structures. SA-516 Gr 70 is picked for boilers, pressure vessels and storage tanks. |
|---|---|
| Typical service | Pressure vessels — Shells and heads. |
| Matching filler | E7018 / ER70S-6 |
SA-516 Gr 70 Boiler-quality Plate Chemical Composition
| Element | Weight % |
|---|---|
| Carbon | 0.27 – 0.31 max (by thickness) |
| Manganese | 0.85 – 1.20 |
| Silicon | 0.15 – 0.40 |
| Phosphorus | 0.025 max |
| Sulphur | 0.025 max |
SA-516 Gr 70 Boiler-quality Plate Mechanical Properties
| Minimum values | Value |
|---|---|
| Tensile strength | 485 – 620 MPa · 70 – 90 ksi |
| Yield strength | 260 MPa · 38 ksi |
| Elongation (50 mm) | 21% |
Full chemistry, properties and equivalents are on the SA-516 Gr 70 grade page.
SA-516 Gr 70 Boiler-quality Plates for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSA-516 Gr 70 Boiler-quality Plate — questions buyers ask
What is BQ plate?
Boiler-quality plate — pressure-vessel steel such as SA-516 Gr 70, certified for boilers and vessels.
Which standard covers SA-516 Gr 70 boiler-quality plates?
The material is ASTM A516 Gr 70 · ASME SA-516; dimensions follow ASTM A20 · A516 · A387. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a SA-516 Gr 70 boiler-quality plate?
The steel price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026