SS 310 / 310S 2B Finish SheetASTM A240 · ASTM A480 · Manufacturer, stockist & exporter, India
AISI 310S · UNS S31008
An SS 310 / 310S 2b finish sheet is cold-rolled sheet that is annealed, pickled and skin-passed, made from SS 310 / 310S to ASTM A240. 2B is the standard finish for stainless sheet — smooth, bright-matte and ready for fabrication, polishing or coating.
- ASTM A240
- ASTM A480
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SS 310 / 310S 2B Finish Sheet?
- What it is
- Cold-rolled sheet that is annealed, pickled and skin-passed
- Material
- ASTM A240
- Dimensions
- ASTM A480
- Grade
- SS 310 / 310S · UNS S31008
- Best at
- Furnaces, burners and heat treatment at high temperature
SS 310 / 310S 2B Finish Sheet Specification
| Product | SS 310 / 310S 2B Finish Sheet |
|---|---|
| Material standard | ASTM A240 |
| Dimensional standard | ASTM A480 |
| Thickness | Below 4.76 mm (3/16") |
| Size | 1000 / 1219 / 1250 / 1500 × 2000 / 2438 / 2500 / 3000 mm or cut |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a 2B Finish Sheet
2B is the standard finish for stainless sheet — smooth, bright-matte and ready for fabrication, polishing or coating.
- Cold rolled, annealed, pickled, skin-passed
- Most common industrial finish
- Base for No.4 and hairline polishing
More on choosing: 2B finish sheet guide.
SS 310 / 310S 2B Finish Sheet: Why 310S for 2b finish sheets
2B is the standard finish for stainless sheet — smooth, bright-matte and ready for fabrication, polishing or coating. In SS 310 / 310S, 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 sheet is formed and finished for visible or hygienic surfaces. SS 310 / 310S is picked for furnaces, burners and heat treatment at high temperature. |
|---|---|
| Typical service | Furnace parts — Muffles, retorts, radiant tubes and conveyor belts. |
| Matching filler | ER310 (AWS A5.9) |
SS 310 / 310S 2B Finish Sheet Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 24.0 – 26.0 |
| Nickel | 19.0 – 22.0 |
| Carbon | 0.08 max |
| Manganese | 2.00 max |
| Silicon | 1.50 max |
| Phosphorus | 0.045 max |
| Sulphur | 0.030 max |
| Iron | Balance |
SS 310 / 310S 2B Finish Sheet Mechanical Properties
| Annealed plate & sheet | Value |
|---|---|
| Tensile strength | 515 MPa · 75 ksi |
| Yield strength 0.2% | 205 MPa · 30 ksi |
| Elongation | 40% |
| Hardness | 217 HB max |
Full chemistry, properties and equivalents are on the SS 310 / 310S grade page.
Other SS 310 / 310S sheets
SS 310 / 310S 2B Finish Sheets for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSS 310 / 310S 2B Finish Sheet — questions buyers ask
What does 2B mean on stainless sheet?
It is an ASTM A480 finish code: cold rolled, heat treated, pickled and given a light skin-pass for a smooth matte surface.
Which standard covers SS 310 / 310S 2b finish sheets?
The material is ASTM A240; dimensions follow ASTM A480. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a SS 310 / 310S 2b finish sheet?
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 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