Steel 42CrMo4 +QT (Material 1.7225)
Material 42CrMo4 (steel 1.7225) is a European standard alloy steel, the delivery condition of this steel is mainly tempered and quenched, it has high strength, high toughness, good hardenability, temper brittleness, high fatigue limit, good impact resistance after quenching and tempering and good impact at low temperature hardness. This steel is suitable for manufacturing large and medium-sized plastic molds that require a certain degree of strength and toughness, transmission gears, rear axles, load-bearing connecting rods, spring clips and deep well drill pipe joints of oil.
42CrMo4+QT means this material is in quenched and tempered (+QT) condition.
42CrMo4 Steel Datasheet and Specifications
1.7225 Material, Chemical Composition 42CrMo4
The following table shows the chemical composition of the material 42CrMo4.
| Chemical composition % | |||||||||
| Country (Region) | Standard | Steel Name (Steel Number) | W | Si ≤ | Mn | P ≤ | S ≤ | Cr | Mo |
| European Union | EN 10083-3 | 42CrMo4 (1.7225) | 0.38-0.45 | 0.40 | 0.60-0.90 | 0.025 | 0.035 | 0.90-1.20 | 0.15-0.30 |
Mechanical Properties of Material 42CrMo4 (1.7225)
Properties of 42CrMo4 steel at room temperature in quenched and tempered condition.
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Yield strength : ≥900 N/mm2 (d≤16mm, t≤8mm)
- ≥750 N/mm2 (16 < d ≤ 40 mm, 8 < t ≤ 20 mm)
- ≥900 N/mm2 (40 < d ≤ 100 mm, 20 < t ≤ 60 mm)
- ≥900 N/mm2 (100 < d ≤ 160 mm, 60 < t ≤ 100 mm)
- ≥900 N/mm2 (160 < d ≤ 250 mm, 100 < t ≤ 160 mm)
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Tensile strength : 1100-1300 N/mm2 (d≤16mm, t≤8mm)
- 1000-1200 N/mm2 (16 < d ≤ 40 mm, 8 < t ≤ 20 mm)
- 900-1100 N/mm2 (40 < d ≤ 100 mm, 20 < t ≤ 60 mm)
- 850-950 N/mm2 (100 < d ≤ 160 mm, 60 < t ≤ 100 mm)
- 750-900 N/mm2 (160 < d ≤ 250 mm, 100 < t ≤ 160 mm)
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Elongation : ≥ 10% (d≤16mm, t≤8mm)
- ≥11% (16 < d ≤ 40 mm, 8 < t ≤ 20 mm)
- ≥12% (40 < d ≤ 100 mm, 20 < t ≤ 60 mm)
- ≥13% (100 < d ≤ 160 mm, 60 < t ≤ 100 mm)
- ≥14% (160 < d ≤ 250 mm, 100 < t ≤ 160 mm)
- Charpy-V-notch longitudinal test impact force : ≥35J (16 < d ≤ 250 mm, 8 < t ≤ 160 mm)
- Hardness 42CrMo4+QT in HRC : ≥53 (after flame or induction hardening)
- 42CrMo4 hardness in HBW : ≤255 (treated to improve shear capacity); ≤241 (soft annealed)
Grades:
- (d) – diameter of the governing section
1 comment
We are a manufacturer of ball screws for which we use 42CrMo4 & 50CrMo4 case
hardened material, if you are dealing with these materials, request you to
confirm the same by mail, then will give you our requirements.