SS 347 Slit CoilASTM A240 · ASTM A480 · Manufacturer, stockist & exporter, India
AISI 347 · UNS S34700
An SS 347 slit coil is coil slit to narrower widths, made from SS 347 to ASTM A240. Slit coils feed stamping, roll forming and tube mills. State width, tolerance and coil weight.
- 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 347 Slit Coil?
- What it is
- Coil slit to narrower widths
- Material
- ASTM A240
- Dimensions
- ASTM A480
- Grade
- SS 347 · UNS S34700
- Best at
- Welded high-temperature piping in refineries and power plants
SS 347 Slit Coil Specification
| Product | SS 347 Slit Coil |
|---|---|
| Material standard | ASTM A240 |
| Dimensional standard | ASTM A480 |
| Thickness | 0.1 – 6 mm by route |
| Width | Mill width or slit to order |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Slit Coil
Slit coils feed stamping, roll forming and tube mills. State width, tolerance and coil weight.
- Slit to width
- Burr-controlled edges
- Coil weight to order
More on choosing: Slit coil guide.
SS 347 Slit Coil: Why 347 for slit coils
Slit coils feed stamping, roll forming and tube mills. State width, tolerance and coil weight. 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 coil feeds stamping, tube-making and roll-forming lines. SS 347 is picked for welded high-temperature piping in refineries and power plants. |
|---|---|
| Typical service | Refinery hydroprocessing — Reactor effluent piping and exchangers. |
SS 347 Slit Coil Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 17.0 – 19.0 |
| Nickel | 9.0 – 13.0 |
| Niobium | 10 × C min, 1.00 max |
| Carbon | 0.08 max |
| Manganese | 2.00 max |
| Silicon | 0.75 max |
| Phosphorus | 0.045 max |
| Sulphur | 0.030 max |
SS 347 Slit Coil Mechanical Properties
| Annealed plate & sheet | Value |
|---|---|
| Tensile strength | 515 MPa · 75 ksi |
| Yield strength 0.2% | 205 MPa · 30 ksi |
| Elongation | 40% |
| Hardness | 201 HB max |
Full chemistry, properties and equivalents are on the SS 347 grade page.
SS 347 Slit Coils for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSS 347 Slit Coil — questions buyers ask
What width tolerance can slit coil hold?
Typically ±0.1 to ±0.3 mm depending on thickness and width.
Which standard covers SS 347 slit coils?
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 347 slit coil?
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