Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
ASTM A29 | 4130 | 0.28-0.33 | 0.40-0.60 | 0.035 | 0.04 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
EN10250 | 25CrMo4/ | 0.22-0.29 | 0.60-0.90 | 0.025 | 0.035 | <=0.40 | 0.90-1.2 | 0.15-0.30 |
/EN10083 | 1.7218 | |||||||
JIS G4105 | SCM430/ | 0.28-0.33 | 0.60-0.85 | 0.03 | 0.03 | 0.15-0.35 | 0.90-1.2 | 0.15-0.30 |
SCM2 |
Equivalent Grades | |
Standard | AISI / SAE 4140 |
UNS | - |
WERKSTOFF NR. | 41CrMo4, 42CrMo4, 42CrMoS4, 43CrMo4 |
BS 970 | 708M40, 708A42, 709M40, En19, En19C |
UNI | 41CrMo4, 38CrMo4 (KB), G40 CrMo4, 42CrMo4 |
JIS | SCM 440, SCM 440H, SNB 7, SCM 4M, SCM 4 |
EN name | 42CrMo4 |
EN # | 1.7223, 1.7225, 1.7227, 1.3563 |
Mechanical Properties | ||
Mechanical Properties | Metric | Imperial |
Hardness, Brinell | 163 | 163 |
Hardness, Knoop (Converted from Brinell hardness) | 184 | 184 |
Hardness, Rockwell B (Converted from Brinell hardness) | 84 | 84 |
Hardness, Vickers (Converted from Brinell hardness) | 170 | 170 |
Tensile Strength, Ultimate | 565 MPa | 81900 psi |
Tensile Strength, Yield | 310 MPa | 45000 psi |
Elongation at Break (in 50 mm) | 16.00% | 16.00% |
Reduction of Area | 40.00% | 40.00% |
Modulus of Elasticity (Typical for steel) | 200 GPa | 29000 ksi |
Bulk Modulus (Typical for steel) | 140 GPa | 20300 ksi |
Poissons Ratio (Typical For Steel) | 0.29 | 0.29 |
Shear Modulus (Typical for steel) | 80 GPa | 11600 ksi |