EN 1.4029 Stainless Steel vs. ASTM A372 Grade M Steel
Both EN 1.4029 stainless steel and ASTM A372 grade M steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.4029 stainless steel and the bottom bar is ASTM A372 grade M steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 10 to 20 | |
18 to 21 |
Fatigue Strength, MPa | 270 to 400 | |
450 to 520 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 76 | |
73 |
Shear Strength, MPa | 440 to 550 | |
510 to 570 |
Tensile Strength: Ultimate (UTS), MPa | 700 to 930 | |
810 to 910 |
Tensile Strength: Yield (Proof), MPa | 410 to 740 | |
660 to 770 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
250 |
Maximum Temperature: Mechanical, °C | 750 | |
450 |
Melting Completion (Liquidus), °C | 1440 | |
1460 |
Melting Onset (Solidus), °C | 1400 | |
1420 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 30 | |
46 |
Thermal Expansion, µm/m-K | 10 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
8.0 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.7 | |
9.1 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.0 | |
5.0 |
Density, g/cm3 | 7.7 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 2.0 | |
2.0 |
Embodied Energy, MJ/kg | 28 | |
27 |
Embodied Water, L/kg | 100 | |
61 |
Common Calculations
PREN (Pitting Resistance) | 14 | |
3.4 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 120 | |
160 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 440 to 1410 | |
1140 to 1580 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 25 to 33 | |
29 to 32 |
Strength to Weight: Bending, points | 23 to 27 | |
24 to 27 |
Thermal Diffusivity, mm2/s | 8.1 | |
12 |
Thermal Shock Resistance, points | 26 to 34 | |
24 to 27 |
Alloy Composition
Carbon (C), % | 0.25 to 0.32 | |
0 to 0.23 |
Chromium (Cr), % | 12 to 13.5 | |
1.5 to 2.0 |
Iron (Fe), % | 82.8 to 87.6 | |
92.5 to 95.1 |
Manganese (Mn), % | 0 to 1.5 | |
0.2 to 0.4 |
Molybdenum (Mo), % | 0 to 0.6 | |
0.4 to 0.6 |
Nickel (Ni), % | 0 | |
2.8 to 3.9 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.015 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.3 |
Sulfur (S), % | 0.15 to 0.25 | |
0 to 0.010 |
Vanadium (V), % | 0 | |
0 to 0.080 |