SS 347 Stainless Steel Sheets
Precision Alloys is a leading manufacturer and exporter of SS 347 stainless steel sheets in India, supplying heat- and corrosion-resistant material that meets global standards such as ASTM A240, ASME SA240, EN 10088, and DIN 1.4550. Designed for high-temperature applications, welded structures, and thermal cycling environments, our 347 sheets are trusted across aerospace, chemical, power, and refinery sectors.
What are SS 347 Stainless Steel Sheets?
SS 347 stainless steel sheets are austenitic stainless steel sheets stabilized with niobium (columbium), which prevents carbide precipitation during welding and high-temperature service. SS 347 offers excellent resistance to intergranular corrosion, especially after welding, and is ideal for high-temperature operations up to 900°C (1650°F) in oxidizing environments.
SS 347 Stainless Steel Sheets Specifications
| Property | Specification |
|---|---|
| Material Grade | SS 347 |
| UNS Number | S34700 |
| EN / WNR | 1.4550 / X6CrNiNb18-10 |
| Thickness Range | 0.4mm – 50mm |
| Standard Widths | 1000mm / 1220mm / 1500mm / 2000mm |
| Length | Custom length or coil form available |
| Surface Finishes | 2B, No. 1, No. 4, BA, Mirror (8K), Hairline |
| Standards | ASTM A240, ASME SA240, EN 10088, DIN 1.4550 |
SS 347 Stainless Steel Sheet Chemical Composition
| Element | % Composition |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 13.0 |
| Niobium (Nb) | ≥ 10x C (min) |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
Mechanical Properties of SS 347 Stainless Steel Sheets
| Property | Value |
|---|---|
| Tensile Strength | 515 – 690 MPa |
| Yield Strength | 205 MPa (min) |
| Elongation | 40% (min) |
| Hardness | ≤ 90 HRB |
| Service Temperature | Up to 900°C (1650°F) |
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