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2020-04-08 作者:Datong Hydraulic

Comparison: 4140 Steel VS 4130 Steel Material

Comparison: 4140 Steel VS 4130 Steel Material
2020-04-08 作者:Datong Hydraulic

AISI 4140 steel VS 4130 Steel chemical composition

 CSiMnSPCrMo
AISI 41400.38~0.430.15~0.350.75~1.00≤0.035≤0.0400.80~1.100.15~0.25
AISI 41300.28~0.330.15~0.350.40~0.60≤0.035≤0.0400.80~1.100.15~0.25

By comparing the Chemical Composition of Alloy Steel AISI 4140 and 4130, we can know some 4140 and 4130 Chemical properties and physical properties have what different point.

sae 4140 steel VS 4130 Steel welding properties

4130 have lower Carbon composition, so 4130 is easier welding than AISI 4140 steel. And 4130 have lower Manganese than 4140. So 4130’s Wear-resisting performance is lower than 4140.

sae 4140 VS 4130 Steel Rust resistance properties

4140 steel have higher carbon, but sae 4140 have higher Mn composition.  so their rust is very same.

AISI 4140 VS 4130 Steel mechanical behavior (mechanical properties)

The mechanical properties of AISI 4140 steel VS 4130 Steel are outlined in the following table.

AISI SAE 4140 SteelAISI SAE 4130 Steel
Properties (behavior)MetricProperties (behavior)Metric
Tensile strength, Ultimate655 MPaTensile strength, Ultimate560 MPa
Tensile strength, Yield415 MPaTensile strength, Yield460 MPa
Modulus of elasticity190-210 MPaModulus of elasticity190-210 MPa
Bulk modulus140 GPaBulk modulus140 GPa
Shear modulus80 GPaShear modulus80 GPa
Poisson ratio0.27-0.30Poisson ratio0.27-0.30
Elongation at break (in 50 mm)25.7 %Elongation at break (in 50 mm)21.5%
Reduction of area45Reduction of area59.6
Hardness, Brinell (Annealing)217 MaxHardness, Brinell (Annealing)217 Max
Hardness, Rockwell C (Q+T)22Hardness, Rockwell C (Q+T)22

If you have any problem and Inquiry for 4140 tube and chrome bar, pls feel contact us. cally@datong-hydraulic.com

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  • 4140 42CRMO4 SCM440 34CRMO Materials
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