SS 347 Hot-rolled PlateASTM A240 · ASTM A480 / B906 / A20 · Manufacturer, trader & exporter, India
AISI 347 · UNS S34700
An SS 347 hot-rolled plate is plate rolled at high temperature and annealed or normalised, made from SS 347 to ASTM A240. Hot-rolled plate is the standard plate for vessels, tanks and structures, cut to size as needed.
- ASTM A240
- ASTM A480 / B906 / A20
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SS 347 Hot-rolled Plate?
- What it is
- Plate rolled at high temperature and annealed or normalised
- Material
- ASTM A240
- Dimensions
- ASTM A480 / B906 / A20
- Grade
- SS 347 · UNS S34700
- Best at
- Welded high-temperature piping in refineries and power plants
SS 347 Hot-rolled Plate Specification
| Product | SS 347 Hot-rolled Plate |
|---|---|
| Material standard | ASTM A240 |
| Dimensional standard | ASTM A480 / B906 / A20 |
| Thickness | 4.76 mm (3/16") and up |
| Size | Mill plates or cut to drawing |
| Testing | PMI (as specified in the PO) · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 or 3.2 on request / as specified in the PO |
When to Choose a Hot-rolled Plate
Hot-rolled plate is the standard plate for vessels, tanks and structures, cut to size as needed.
- Standard plate route
- Full plates or cut to drawing
- Thickness 4.76 mm and up
More on choosing: Hot-rolled plate guide.
SS 347 Hot-rolled Plate: Why 347 for hot-rolled plates
Hot-rolled plate is the standard plate for vessels, tanks and structures, cut to size as needed. In SS 347, 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 | Stainless plate goes into vessels and heavy sections. SS 347 is picked for welded high-temperature piping in refineries and power plants. |
|---|---|
| Typical service | Refinery hydroprocessing — Reactor effluent piping and exchangers. |
| Matching filler | ER347 (AWS A5.9) |
SS 347 Hot-rolled Plate Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Chromium | As specified |
| Nickel | As specified |
| Niobium | As specified |
| 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 A240 for UNS S34700.
SS 347 Hot-rolled Plate Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
| Hardness | 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 A240 for UNS S34700 — Annealed plate & sheet.
Full chemistry, properties and equivalents are on the SS 347 grade page.
SS 347 Hot-rolled Plate — questions buyers ask
Is hot-rolled plate suitable for pressure vessels?
Yes, when supplied to the pressure-vessel specification and certified accordingly.
Which standard covers SS 347 hot-rolled plates?
The material is ASTM A240; dimensions follow ASTM A480 / B906 / A20. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a SS 347 hot-rolled plate?
The alloy 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 or 3.2 certificates available on request / as specified in the PO; dimensional reports as required. PMI can be arranged depending on product and requirements, as specified in the PO.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026