ASTM A139 Steel Properties
The below table outlines the material properties for ASTM A139 material including the young's modulus, yield strength, ultimate strength and other relevant mechanical properties required for structural and mechanical design.
ASTM A139 Young's Modulus
The Young's Modulus of ASTM A139 is 200,000 MPa.
ASTM A139 Ultimate Strength
The Ultimate Strength of ASTM A139 ranges between 330 and 455 MPa.
ASTM A139 Yield Strength
The Yield Strength of ASTM A139 ranges between 205 and 360 MPa depending on the material grade. See the below tables to get your specific material grade material strength.
Grade A Steel Properties
Standard Material Properties
| Unit System | Young's Modulus, E | Density, ρ | Ultimate Strength, Fu | Yield Strength, Fy | Thermal Expansion Coef., α | Poisson's Ratio, ν |
| Metric | 200,000 MPa | 7,800 kg/m3 | 330 MPa | 205 MPa | 12 1/°C | 0.29 |
| Imperial | 29,000 ksi | 487 lb/ft3 | 48 ksi | 30 ksi | 6.67 1/°F | 0.29 |
Grade B Steel Properties
Standard Material Properties
| Unit System | Young's Modulus, E | Density, ρ | Ultimate Strength, Fu | Yield Strength, Fy | Thermal Expansion Coef., α | Poisson's Ratio, ν |
| Metric | 200,000 MPa | 7,800 kg/m3 | 415 MPa | 240 MPa | 12 1/°C | 0.29 |
| Imperial | 29,000 ksi | 487 lb/ft3 | 60 ksi | 35 ksi | 6.67 1/°F | 0.29 |
Grade C Steel Properties
Standard Material Properties
| Unit System | Young's Modulus, E | Density, ρ | Ultimate Strength, Fu | Yield Strength, Fy | Thermal Expansion Coef., α | Poisson's Ratio, ν |
| Metric | 200,000 MPa | 7,800 kg/m3 | 415 MPa | 290 MPa | 12 1/°C | 0.29 |
| Imperial | 29,000 ksi | 487 lb/ft3 | 60 ksi | 42 ksi | 6.67 1/°F | 0.29 |
Grade D Steel Properties
Standard Material Properties
| Unit System | Young's Modulus, E | Density, ρ | Ultimate Strength, Fu | Yield Strength, Fy | Thermal Expansion Coef., α | Poisson's Ratio, ν |
| Metric | 200,000 MPa | 7,800 kg/m3 | 415 MPa | 315 MPa | 12 1/°C | 0.29 |
| Imperial | 29,000 ksi | 487 lb/ft3 | 60 ksi | 46 ksi | 6.67 1/°F | 0.29 |
Grade E Steel Properties
Standard Material Properties
| Unit System | Young's Modulus, E | Density, ρ | Ultimate Strength, Fu | Yield Strength, Fy | Thermal Expansion Coef., α | Poisson's Ratio, ν |
| Metric | 200,000 MPa | 7,800 kg/m3 | 455 MPa | 360 MPa | 12 1/°C | 0.29 |
| Imperial | 29,000 ksi | 487 lb/ft3 | 66 ksi | 52 ksi | 6.67 1/°F | 0.29 |
