AISI 440B
Stainless steels are high-alloy steels with good corrosion resistance because of large amounts of chromium present in them. About 10% of chromium is present in most stainless steels. Stainless steels are available in three different groups based on their crystalline structure. These groups include martensitic, austenitic and ferritic. The combination of martensitic and ferritic steels forms a fourth group of stainless steels known as precipitation-hardened steels. Grade 440B stainless steel is a high carbon martensitic stainless steel containing good strength, moderate corrosion resistance and ability to obtain and maintain wear resistance and excellent resistance.
| Element | Content(%) |
|---|---|
| Iron, Fe | 80 |
| Chromium, Cr | 16.0-18.0 |
| Manganese, Mn | 1.0 |
| Silicon, Si | 1.0 |
| Carbon, C | 0.75-0.95 |
| Molybdenum, Mo | 0.75 |
| Phosphorous, P | 0.040 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
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 |