Stainless Steel
440C BS EN 10088-3
Description:
Stainless Grade 440C is a high carbon, straight chromium, high hardenability martensitic stainless steel. Grade 440C is generally supplied in the annealed condition and when hardened and tempered it is characterised by good corrosion resistance, extreme high strength, hardness, shock and wear resistance. Capable of being through hardened up to Rc60.
Grade 440C machines best in the annealed condition and welding is not advised in the H&T condition and if necessary in the annealed condition, professional advice should be sought.
Colour Code
| Steel Number | Steel Name | Grade | UNS | BS 970 1983 |
|---|---|---|---|---|
| 1.4125 | X105CrMo17 | 440C | S44004 | - |
| C | Mn | Si | Cr | Ni | P | S | Fe |
|---|---|---|---|---|---|---|---|
| .90/1.2 | 1.0max | 1.0max | 16/18 | .75max | .04max | .030max | Balance |
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| Rounds | Rounds | Rounds | Rounds | Rounds |
| (inch) | (inch) | (inch) | (inch) | (inch) |
| 3⁄16 | 7⁄8 | 11⁄2 | 21⁄2 | 5 |
| 1⁄4 | 1 | 15⁄8 | 23⁄4 | 6 |
| 3⁄8 | 11⁄8 | 13⁄4 | 3 | 8 |
| 1⁄2 | 11⁄4 | 2 | 31⁄2 | 10 |
| 3⁄4 | 13⁄8 | 21⁄4 | 4 |
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