Type: | Alloy Steel Bar |
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Standard: | AISI, GB, JIS, DIN |
Technique: | Hot Rolled |
Application: | Structural Steel Bar |
Surface Treatment: | Polished |
Alloy: | Alloy |
Samples: |
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Customization: |
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Country | USA | German | British | Japan | China | Australia |
Standard | ASTM A29 | DIN 17200 | BS 970 | JIS G4105 | GB/T 3077 | AS 1444 |
Grades | 4140 | 1.7225/ 42crmo4 |
42CrMo4 | SCM440 | 42CrMo | 4140 |
Standard | Grade | C | Mn | P | S | Si | Ni | Cr | Mo |
ASTM A29 | 4140 | 0.38-0.43 | 0.75-1.00 | 0.035 | 0.040 | 0.15-0.35 | - | 0.8-1.10 | 0.15-0.25 |
EN 10250 | 42CrMo4/ 1.7224 |
0.38-0.45 | 0.6-0.9 | 0.035 | 0.035 | 0.4 | - | 0.9-1.2 | 0.15-0.30 |
JIS G4105 | SCM440 | 0.38-0.43 | 0.60-0.85 | 0.03 | 0.03 | 0.15-0.35 | - | 0.9-1.2 | 0.15-0.30 |
Mechanical Properties | Metric | Imperial |
Tensile strength | 655 MPa | 95000 psi |
Yield strength | 415 MPa | 60200 psi |
Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
Elastic modulus | 190-210 GPa | 27557-30458 ksi |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break (in 50 mm) | 25.70% | 25.70% |
Hardness, Brinell | 197 | 197 |
Hardness, Knoop (converted from Brinell hardness) | 219 | 219 |
Hardness, Rockwell B (converted from Brinell hardness) | 92 | 92 |
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 13 | 13 |
Hardness, Vickers (converted from Brinell hardness) | 207 | 207 |
Machinability (based on AISI 1212 as 100 machinability) | 65 | 65 |
Steel Grade | Diameter(mm) | Length(mm) | Harness(HRC) |
SCM440/SAE4140 | 16,18,20,23,25,28,30,33,35,38,40,43,45,48,50, 55,60,65,70,75,80,85,90,95,100,110,120,130,140, 150,160,170,180,190,200,210,220,230,240,250,260, 270,280,290,300,310,320,330,340,350,360,370,380, 390,400,410,420,430,440,450 | 4000-10000 | HB160-220 |
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