Stainless steel material: 1Cr18Ni9Ti (321), Cr23Ni13 (309S), 1Cr20Ni14Si2, Cr25Ni20 (310S) 1Cr25Ni20Si2, there are also some low temperature areas (such as low temperature superheater, low temperature reheater) using 1 Cr 13,1Cr6Si2Mo and other materials, the selection of materials is generally subject to the initial design of the boiler, different materials temperature resistance, mechanical strength:
| 序号 | 材质 | 耐温度 | 屈服强度00 . 2MPa | 抗拉强度 | 伸 长 率 0 5 % | HB | HRB | HV |
| 1 | 1Cr18Ni9Ti | 925 | ≥205 | ≥520 | ≥40 | ≤187 | ≤90 | ≤200 |
| 2 | Cr23Ni13 | 1095 | ≥205 | ≥520 | ≥40 | ≤187 | ≤90 | ≤200 |
| 3 | 1Cr20Ni14Si2 | 1095 | ≥590 | ≥40 | ||||
| 4 | Cr25Ni20 | 1150 | ≥205 | ≥520 | ≥40 | ≤187 | ≤90 | ≤200 |
| 5 | 1Cr25Ni20Si2 | 1150 | ≥540 | ≥35 |
