EN 10083-3 — Steels for quenching and tempering. Part 3: Technical delivery conditions for alloy steels
Scope
Alloy steels for quenching and tempering: Mn, Cr, CrMo, CrNiMo, MnCr, MnB grades such as 42CrMo4, 34CrNiMo6, 25CrMo4, 41Cr4, 30MnB5, 51CrV4, 36NiCrMo16. Gives chemistry, hardenability bands (+H, +HH, +HL), mechanical properties in +QT by ruling section, and impact values.
Grades covered by EN 10083-3
| Grade | No. | Type | C % | Yield MPa | Tensile MPa | Nearest equivalents |
|---|---|---|---|---|---|---|
| 42CrMo4 | 1.7225 | Chromium-molybdenum steel for quenching and tempering | 0.38 – 0.45 | 900 | 1100–1300 | 4140, 4142, SCM440 |
Revision history and superseded standards
| Year | Change |
|---|---|
| 1991 | EN 10083-1:1991 — alloy Q&T grades in Part 1 |
| 2006 | EN 10083-3:2006 — alloy grades moved to Part 3; current |
Supersedes: DIN 17200:1987 (alloy grades); EN 10083-1:1991 (alloy grades).
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