42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel vs ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
Summary
42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel and ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties are both steel alloys commonly used in engineering applications.
Key Differences
- ◆ {'alloy_a': 'N/A', 'alloy_b': '565 MPa', 'property': 'Tensile Strength'}
- ◆ {'alloy_a': 'N/A', 'alloy_b': '3.1E+2 MPa', 'property': 'Yield Strength'}
- ◆ {'alloy_a': 'N/A', 'alloy_b': '163 HB', 'property': 'Hardness (Brinell)'}
- ◆ {'alloy_a': 'N/A', 'alloy_b': 'N/A', 'property': 'Density'}
- ◆ {'alloy_a': 'N/A', 'alloy_b': 'N/A', 'property': 'Melting Point'}
- ◆ {'alloy_a': '5/10', 'alloy_b': '6/10', 'property': 'Strength Rating'}
- ◆ {'alloy_a': '3/10', 'alloy_b': '3/10', 'property': 'Corrosion Rating'}
- ◆ {'alloy_a': '9/10', 'alloy_b': '9/10', 'property': 'Cost Rating'}
- ◆ {'alloy_a': '6/10', 'alloy_b': '6/10', 'property': 'Machinability Rating'}
- ◆ {'alloy_a': '7/10', 'alloy_b': '7/10', 'property': 'Temperature Rating'}
- ◆ {'alloy_a': '5/10', 'alloy_b': '5/10', 'property': 'Weight Rating'}
Ratings Comparison
Strength
42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel
5/10
ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
6/10
Corrosion Resistance
42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel
3/10
ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
3/10
Lightweight
42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel
5/10
ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
5/10
Machinability
42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel
6/10
ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
6/10
Cost Efficiency
42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel
9/10
ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
9/10
Temperature Resistance
42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel
7/10
ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
7/10
Properties Comparison
| Property | 42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel | ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties |
|---|---|---|
| Metal Base | Steel | Steel |
| Tensile Strength | — | 565.0 MPa |
| Yield Strength | — | 310.0 MPa |
| Elongation | — | 16.0 % |
| Hardness (Brinell) | — | 163.0 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 ASTM SAE AISI 1045 Carbon Steel Heat Treatment, Chemical Composition, Properties
Choose ASTM SAE AISI when you need superior strength.
Frequently Asked Questions
Which is stronger, 42CrMo or 1045?
Based on overall strength ratings, 1045 is stronger. 42CrMo scores 5/10 and 1045 scores 6/10 on the strength scale. Check specific tensile and yield values for your load case.
Does 42CrMo or 1045 have better corrosion resistance?
Both alloys share the same corrosion resistance rating of 3/10.
Is 42CrMo or 1045 easier to weld?
Weldability data is not available for both alloys. In terms of machinability, 42CrMo scores 6/10 and 1045 scores 6/10.
Which is more cost-effective, 42CrMo or 1045?
Both alloys are similarly priced with a cost rating of 9/10.
Can I use 42CrMo instead of 1045 for structural applications?
42CrMo has a strength rating of 5/10 versus 6/10 for 1045. Always validate substitution against your specific design codes and operating conditions.