42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel vs SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition

概要

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel and SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition are both steel alloys commonly used in engineering applications.

Key Differences

Ratings Comparison

Strength

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel 5/10
SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition 6/10

Corrosion Resistance

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel 3/10
SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition 3/10

Lightweight

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel 5/10
SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition 5/10

Machinability

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel 6/10
SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition 6/10

Cost Efficiency

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel 9/10
SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition 9/10

Temperature Resistance

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel 7/10
SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition 7/10

Properties Comparison

Property 42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition
Metal Base Steel Steel
Tensile Strength 670.0 MPa
Yield Strength 435.0 MPa
Elongation 25.5 %
Hardness (Brinell) 197.0 HB
Elastic Modulus
Density
Melting Point
Thermal Conductivity
Weldable
Heat Treatable
Magnetic

When to Use 42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel

Choose 42CrMo vs 4140 when your application specifically requires this steel alloy's unique combination of properties and industry certifications.

When to Use SAE AISI 4130 Chromoly Steel, Alloy Material Properties, Chemical Composition

Choose SAE AISI 4130 when you need superior strength.

Frequently Asked Questions

Which is stronger, 42CrMo or 4130?
Based on overall strength ratings, 4130 is stronger. 42CrMo scores 5/10 and 4130 scores 6/10 on the strength scale. Check specific tensile and yield values for your load case.
Does 42CrMo or 4130 have better corrosion resistance?
Both alloys share the same corrosion resistance rating of 3/10.
Is 42CrMo or 4130 easier to weld?
Weldability data is not available for both alloys. In terms of machinability, 42CrMo scores 6/10 and 4130 scores 6/10.
Which is more cost-effective, 42CrMo or 4130?
Both alloys are similarly priced with a cost rating of 9/10.
Can I use 42CrMo instead of 4130 for structural applications?
42CrMo has a strength rating of 5/10 versus 6/10 for 4130. Always validate substitution against your specific design codes and operating conditions.

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