AISI 4130 Suppliers - 25CrMo4 , SCM430 , 1.7218 Steel (Oil & Gas Materials)
AISI 4130 alloy steel contains chromium and molybdenum as strengthening agents. It has low carbon content, and hence it can be welded easily. The datasheet given below provides more details about material 4130 alloy steel.
AISI 4130 is equivalent to
|Standard||ASTM A29||EN 10250/EN10083||BS 970||JIS G4105|
Chemical Composition of SCM430 Steel
Mechanical Properties of 25CrMo4 (4130 Alloy Steel)
|Tensile strength, ultimate||560 MPa||81200 psi|
|Tensile strength, yield||460 MPa||66700 psi|
|Modulus of elasticity||190-210 GPa||27557-30458 ksi|
|Bulk modulus (Typical for steel)||140 GPa||20300 ksi|
|Shear modulus (Typical for steel)||80 GPa||11600 ksi|
|Elongation at break (in 50 mm)||21.50%||21.50%|
|Reduction of area||59.6||59.60%|
|Hardness, Knoop (Converted from Brinell hardness)||240||240|
|Hardness, Rockwell B (Converted from Brinell hardness)||95||95|
|Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.)||17||17|
|Hardness, Vickers (Converted from Brinell hardness)||228||228|
|Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.)||70||70|
Fabrication and Heat Treatment of 4130 Oilfield Steels
1.7218 steel can be easily machined using conventional methods. However, machining becomes difficult when the hardness of the steel is increased.
Forming of 7218 steel can be performed in the annealed condition.
Welding of AISI 4130 steel can be performed by all commercial methods.
AISI 4130 steel is heated at 871°C (1600°F) and then quenched in oil. This steel is usually heat-treated at temperatures ranging from 899 to 927°C (1650 to 1700°F).
Forging of AISI 4130 steel can be performed can be performed at 954 to 1204°C (1750 to 2200°F).
Hot working of AISI 4130 steel can be done at 816 to 1093°C (1500 to 2000°F).
AISI 4130 steel can be cold worked using conventional methods.
AISI 4130 steel can be annealed at 843°C (1550°F) followed by air cooling at 482°C (900°F).
Tempering of AISI 4130 steel can be performed at 399 to 566°C (750 to 1050°F), depending on the desired strength level.
Hardening of AISI 4130 steel can be done with cold working or heat treatment.
Applications for Alloy Steel AISI 4130
The following are some of the major applications of AISI 4130 alloy steel:
- Aircraft engine mounts
- Welded tubing
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