X20CrMoV11-1 is a grade similar to X22CrMoV12-1 and 1.4923, with a martensitic structure after heat treatment. Designed to provide pressure and high temperature applications up to 600°C for equipment in the power, petroleum and chemical industries. The steel is mainly supplied in the form of hot-rolled boiler tubes, fittings and casings. Compared with X20CrMoV11-1, the above grades show better and more stable strength performance under normalizing and tempering + NT conditions. Steel can be classified as one of the heat-resistant grades.
ESR
| Grade | Chemical Composition WT % | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Mo: | V: | Al: | Cu: | |
| EN X20CrMoV11-1, 1.4922 | 0.17 - 0.23 | Max 1.0 | 0.15 - 0.50 | Max 0.025 | Max 0.010 | 10.0 - 12.5 | 0.3 - 0.8 | 0.8 - 1.2 | 0.25 - 0.35 | Max 0.04 | Max 0.3 |
| DIN X20CrMoV12-1, 1.4923 | 0.17 - 0.23 | 0.3 - 1.0 | Max 0.4 | Max 0.025 | Max 0.015 | 10.0 - 12.5 | 0.3 - 0.8 | 0.8 - 1.2 | 0.20 - 0.35 | ||
| 20Х11МНФ, 20Ch11MNF | 0.18 - 0.23 | 0.3 - 0.8 | 0.1 - 0.4 | Max 0.030 | Max 0.030 | 11.0 - 12.5 | 0.3 - 0.8 | 0.8 - 1.2 | 0.25 - 0.35 | 0.015 - 0.045 | |
| 20Х12МНФ-Ш, 20Ch12MNF-Sh | 0.17 - 0.27 | Max 1.0 | Max 0.5 | Max 0.040 | Max 0.030 | 12.0 - 14.0 | Max 0.6 | 0.3 - 1.2 | 0.25 - 0.35 | ||
Condition: QT1 (Tempering 650 Deg. min.)
Tensile strength,σb/≥ MPa: 900 ~ 1050
Yield strength, σ0.2/≥ MPa: 700
Elongation, δ ≥(％): 13.0
Reduction of area, (%): 35.0
Impact, AKv/J ≥: 20
QT hardness, HB ≤: 277 ~ 311
Condition: QT2 (Tempering 700 ~ 750 Deg.)
Tensile strength,σb/≥ MPa: 930 max.
Yield strength, σ0.2/≥ MPa: 590 ~ 735
Elongation, δ ≥(％): 15.0
Reduction of area, (%): 50.0
Impact, AKv/J ≥: 27
QT hardness, HB ≤: 241 ~ 285
Steel grade
Special steel