32CrMo12 / 1.7361 Steel – EN 10250
32CrMo12 / 1.7361 steel is a nitriding steel which has at least 2.8Cr%,0.3%Mo as strengthening elements as per EN10250 standard.Similar with 30CrMo12,31CrMo12, it has a high tensile strength 880 – 1230 MPa after QT. 32CrMo12 / 1.7361 has high surface hardness and wear resistance after nitrided,but this material is difficult to weld and should therefore not be used in welded constructions.
32CrMo12 / 1.7361 Steel Supply Form & Size & Tolerance
Hot rolled round bar:Φ20-Φ120mm,Length:3000-9000mm
Hot Forged round bar:Φ130-Φ1000mm,Length:3000-10000mm
Flat bar/Blcoks:Thickness :120-800mm xWidth:120-1500mm,Length:2000-6000mm
Surface Finish | Black-Forged | Black-Rolled | Turned | Grinding | Polished | Peeled | Cold Drawn |
Tolerance | (0,+5mm) | (0,+1mm) | (0,+3mm) | Best h9 | Best h11 | Best H11 | Best H11 |
32CrMo12 / 1.7361 Steel Chemical Composition per EN 10250-3
GRADE | NUMBER | C | Si | Mn | P | S | Cr | Mo | Ni |
32CrMo12 | 1.7361 | 0.28-0.35 | ≤ 0.40 | 0.40-0.70 | ≤ 0.035 | ≤ 0.035 | 2.80-3.30 | 0.30-0.50 | ≤ 0.60 |
32CrMo12 / 1.7361 Steel Relevant Standards
Europe | France | UK | Sweden |
31CrMo12/1.8515 | 30CD12 | 722M24 | 2240 |
32CrMo12 / 1.7361 Steel Mechanical Property
Thickness of ruling section T,mm | ≤160 | 160-330 | ≥330 | |
Yield Strength Mpa | ≥680 | ≥630 | ≥490 | |
Tensile Strength Mpa | ≥900 | ≥850 | ≥700 | |
Elongation, % | longitudinal | ≥12 | ≥13 | ≥15 |
transverse | ≥8 | ≥9 | ≥11 | |
Impact,J | longitudinal | ≥35 | ≥35 | ≥35 |
transverse | ≥20 | ≥20 | ≥20 |
32CrMo12 / 1.7361 Steel Physical Property
- Density: 7.8 g/cm3
- Mean coefficient of expansion in m/m.°C:
– between 20 °C and 100 °C:11.3 x 10-6
– between 20 °C and 500 °C:13.6 x 10-6 - Critical points:
– Ac 1: 780 °C
– Ac 3: 835 °C - Modulus of elasticity :210GMpa
32CrMo12 / 1.7361 Steel Forging
32CrMo12 / 1.7361 Steel forging temperature:900 – 1100°C ,cooling as slowly as possible in sand after forged.
32CrMo12 / 1.7361 Steel Heat Treatment
- Normalizing: 880 – 920°C,Cooling in air
- Soft Annealing:650 – 700°C,Cooling in furnace,Hardness:max 248 HB
- Hardening:890 – 940°C,water or oil quench
- Tempering:550 – 740°C,Cooling in air
- Nitriding: 480-570°C. Hardness after nitridng is 480-570 HV1.
32CrMo12 / 1.7361 Steel Application
32CrMo12 / 1.7361 Steel is used in automotive and general mechanical engineering components which requires high hardness and wear resistance,also suitable for gear wheels, cylinders, drills, connecting rods, shafts, extruders, quides, thread gauges with relatively large-cross section.
Page Contents
- 32CrMo12 / 1.7361 Steel Supply Form & Size & Tolerance
- 32CrMo12 / 1.7361 Steel Chemical Composition per EN 10250-3
- 32CrMo12 / 1.7361 Steel Relevant Standards
- 32CrMo12 / 1.7361 Steel Mechanical Property
- 32CrMo12 / 1.7361 Steel Physical Property
- 32CrMo12 / 1.7361 Steel Forging
- 32CrMo12 / 1.7361 Steel Heat Treatment
- 32CrMo12 / 1.7361 Steel Application