| Steel designation | Chemical composition, % by mass | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steel Name | Steel Number | C | Si | Mn | P max. | S | N | Cr | Cu | Mo | Nb | Ni | Others |
| X4CrNi18-12 | 1.4303 | ≤ 0,06 | ≤ 1,00 | ≤ 2,00 | 0,045 | ≤ 0,030b | ≤ 0,11 | 17,0 to 19,0 | - | - | - | 11,0 to 13,0 | - |
| Steel designation | Thickness t or diameter b d | Hardness c,d | 0,2 %-proof strength | 1 %-proof strength | Tensile strengthd,e | Elongation after fractured,e | Impact energy (ISO-V) b |
Resistance to intergranular corrosionf | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steel Name | Steel Number | mm | HB max. |
Rp0,2e MPa*) min. |
R p1,0c,e MPa*) min. |
R m MPa*) |
A % min |
KV J min |
in the delivery condition | In the sensitized conditiong | |||
| (long.) | (tr.) | (long.) | (tr.) | ||||||||||
| Standard grades | |||||||||||||
| X4CrNi18-12 | 1.4303 | ≤ 160 | 215 | 190 | 225 | 500 to 700 | 45 | - | 100 | - | yes | no h | |
| 160 < t ≤ 250 | - | 35 | - | 60 | |||||||||
| a Solution treatment may be omitted if the conditions for hot working and subsequent cooling are such that the requirements for the mechanical properties of the product and the resistance to Intergranular corrosion as defined in EN ISO 3651-2 are obtained. | |||||||||||||
| b Width across flats for hexagons. | |||||||||||||
| c Only for guidance. | |||||||||||||
| d The maximum HB-values may be raised by 100 HB or the tensile strength value may be raised by 200 MPa and the minimum elongation value may be lowered to 20 % for sections and bars of ≤ 35 mm thickness having a final cold deformation and for hot formed sections and bars of 8 mm thickness. | |||||||||||||
| e For rods, only the tensile strength values apply. | |||||||||||||
| f When tested according to EN ISO 3651-2. | |||||||||||||
| g See NOTE 2 to 6.4. | |||||||||||||
| h Sensitization treatment of 15 min at 700°C followed by cooling in air. | |||||||||||||
| *) 1MPa = 1 N/mm². | |||||||||||||