Application
4140 steel is mainly used for the manufacture of forgings that require higher strength and larger quenching and tempering sections than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods with large loads and spring clamps. It can also be used in oil deep well drill pipe joints and fishing tools below 2000m, and can be used for molds of bending machines.
ANHUAI CO., LTD info@xingxionggroup.com for more information about the 4140| 1.7225 | 42CrMo4 | SCM440 steel.
ANHUAI CO., LTD info@xingxionggroup.comper ulteriori informazioni sull'acciaio 4140| 1.7225 | 42CrMo4 | SCM440.
1.Equivaient grades/Gradi equivalenti
| Germany(DIN) | Japan(JIS) | USA(AISI) | China(GB) |
| 1.7225 | SCM440 | 4140 | 42CrMo |
2.Chemical Composition(%)/Composizione chimica(%)
|
Grade |
Chemical Composition(%) | ||||||||
| C | Si | Mn | Cr | Ni | Mo | Cu | P | S | |
|
1.7225 |
0.37-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.250 | ¡Ü0.30 | 0.15-0.25 | ¡Ü0.30 | ¡Ü0.035 | ¡Ü0.035 |
| SCM440 | 0.37-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.250 | ¡Ü0.30 | 0.15-0.25 | ¡Ü0.30 | ¡Ü0.035 | ¡Ü0.035 |
| 4140 | 0.37-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.250 | ¡Ü0.30 | 0.15-0.25 | ¡Ü0.30 | ¡Ü0.035 | ¡Ü0.035 |
| 42CrMo | 0.37-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.250 | ¡Ü0.30 | 0.15-0.25 | ¡Ü0.30 | ¡Ü0.035 | ¡Ü0.035 |
3.Characteristic/Caratteristica:
4140 steel, this steel has good processability, small processing deformation, and good fatigue resistance. It is a medium-hardening steel. After 4140 heat treatment, it has good strength and good comprehensive mechanical properties, good manufacturability and finished product rate. High. The maximum operating temperature is 427 degrees Celsius. 4140 strength, high hardenability, good toughness, small deformation during quenching, high creep strength and long-lasting strength at high temperatures.
