AISI 348
Stainless steels have high corrosion resistance when compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are further divided in to ferritic, austenitic, and martensitic steels. Grade 348 stainless steel is similar to that of 321 stainless steel. It uses stabilizing elements such as columbium or tantalum to increase intergranular corrosion resistance. The following datasheet gives an overview of grade 348 stainless steel.
| Element | Content(%) |
|---|---|
| Iron, Fe | 66 |
| Chromium, Cr | 19 |
| Nickel, Ni | 11 |
| Manganese, Mn | 2.0 |
| Silicon, Si | 1.0 |
| Nb + Ta | 0.8 |
| Cobalt, Co | 0.2 |
| Tantalum, Ta | 0.1 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.045 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 655 MPa | 95000 psi |
| Yield strength (@ strain 0.200%) | 275 MPa | 39900 psi |
| Izod impact | 120 - 160 J | 88.5 - 118 ft-lb |
| Charpy impact | 160 J | 118 ft-lb |
| Shear modulus (typical for steel) | 77.0 GPa | 11200 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 45% | 45% |
| Hardness, Brinell (converted from Rockwell B hardness) | 147 | 147 |
| Hardness, Knoop (converted from Rockwell B hardness) | 164 | 164 |
| Hardness, Rockwell B | 85 | 85 |
| Hardness, Vickers (converted from Rockwell B hardness) | 169 | 169 |
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 |
AISI 348 Equivalent Grade / Specifications
- ASTM A167
- ASTM A312
- ASTM A479
- QQ S766
- ASME SA376
- ASTM A182
- ASTM A314
- ASTM A580
- ASME SA182
- ASME SA403
- ASTM A213
- ASTM A336
- ASTM A632
- ASME SA213
- ASME SA409
- ASTM A240
- ASTM A358
- ASTM A813
- ASME SA240
- ASME SA479
- ASTM A249
- ASTM A376
- ASTM A814
- ASME SA249
- MIL-S-23196
- ASTM A269
- ASTM A403
- DIN 1.4550
- ASME SA312
- SAE 30348
- ASTM A276
- ASTM A409
- MIL S-23195
- ASME SA358
- SAE J405 (30348)