SS 321 Chequered SheetASTM A240 · Mill standard · Manufacturer, stockist & exporter, India
AISI 321 · UNS S32100
An SS 321 chequered sheet is sheet with a raised anti-slip pattern, made from SS 321 to ASTM A240. Chequered sheet is used for floors, stair treads and vehicle decks.
- ASTM A240
- Mill standard
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SS 321 Chequered Sheet?
- What it is
- Sheet with a raised anti-slip pattern
- Material
- ASTM A240
- Dimensions
- Mill standard
- Grade
- SS 321 · UNS S32100
- Best at
- High-temperature service between 425 and 815 °C
SS 321 Chequered Sheet Specification
| Product | SS 321 Chequered Sheet |
|---|---|
| Material standard | ASTM A240 |
| Dimensional standard | Mill standard |
| 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 Chequered Sheet
Chequered sheet is used for floors, stair treads and vehicle decks.
- Diamond or lentil pattern
- Anti-slip
- Light gauges
More on choosing: Chequered sheet guide.
SS 321 Chequered Sheet: Why 321 for chequered sheets
Chequered sheet is used for floors, stair treads and vehicle decks. In SS 321, 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 321 is picked for high-temperature service between 425 and 815 °C. |
|---|---|
| Typical service | Aircraft exhaust — Manifolds, bellows and exhaust systems. |
| Matching filler | ER347 (AWS A5.9) |
SS 321 Chequered Sheet Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 17.0 – 19.0 |
| Nickel | 9.0 – 12.0 |
| Titanium | 5 × (C + N) min, 0.70 max |
| Carbon | 0.08 max |
| Manganese | 2.00 max |
| Silicon | 0.75 max |
| Nitrogen | 0.10 max |
| Phosphorus | 0.045 max |
SS 321 Chequered 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 321 grade page.
Other SS 321 sheets
SS 321 Chequered Sheets for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSS 321 Chequered Sheet — questions buyers ask
What pattern options are available?
Diamond and lentil (5-bar) patterns are the most common.
Which standard covers SS 321 chequered sheets?
The material is ASTM A240; dimensions follow Mill standard. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a SS 321 chequered 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