AISI 347H
Stainless steels are high-alloy steels which have high corrosion resistance than other steels owing to the presence of large amounts of chromium in the range of 4 to 30%. Stainless steels are classified into martensitic, ferritic and austenitic based on their crystalline structure. In addititon, they form another group known as precipitation-hardened steels, which are a combination of martensitic and austenitic steels.
| Element | Content(%) |
|---|---|
| Iron, Fe | 62.83 - 73.64 |
| Chromium, Cr | 17 - 20 |
| Nickel, Ni | 9 - 13 |
| Manganese, Mn | 2 |
| Silicon, Si | 1 |
| Niobium, Nb (Columbium, Cb) | 0.320 - 1 |
| Carbon, C | 0.04 - 0.10 |
| Phosphorous, P | 0.040 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 480 MPa | 69600 psi |
| Tensile strength, yield | 205 MPa | 29700 psi |
| Rupture strength (@750°C/1380°F, time 100,000 hours) | 38 - 39 MPa, | 5510 - 5660 psi |
| Elastic modulus | 190 – 210 GPa | 27557 – 30458 ksi |
| Poisson’s ratio | 0.27 – 0.30 | 0.27 – 0.30 |
| Elongation at break | 29% | 29% |
| Hardness, Brinell | 187 | 187 |
Sheets / Plates
| Production Route | Hot Rolled, Cold Rolled |
| Material Standard | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry |
| Size | Width from 100mm to 3000mm ; Length from 500mm to 12000mm |
| Thickness | 0.1mm to 400mm |
| Delivery Condition | As Rolled, Annealed, Quenched and Tempered, Normalized |
| Surface Finish | Plain, Brushed, Cladded |