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S32001 Stainless Steel vs. ASTM A372 Grade M Steel

Both S32001 stainless steel and ASTM A372 grade M steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S32001 stainless steel and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
18 to 21
Fatigue Strength, MPa 370
450 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 450
510 to 570
Tensile Strength: Ultimate (UTS), MPa 690
810 to 910
Tensile Strength: Yield (Proof), MPa 510
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 970
450
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 37
27
Embodied Water, L/kg 150
61

Common Calculations

PREN (Pitting Resistance) 23
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
160
Resilience: Unit (Modulus of Resilience), kJ/m3 660
1140 to 1580
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
29 to 32
Strength to Weight: Bending, points 23
24 to 27
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 19
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.23
Chromium (Cr), % 19.5 to 21.5
1.5 to 2.0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.6 to 75.5
92.5 to 95.1
Manganese (Mn), % 4.0 to 6.0
0.2 to 0.4
Molybdenum (Mo), % 0 to 0.6
0.4 to 0.6
Nickel (Ni), % 1.0 to 3.0
2.8 to 3.9
Nitrogen (N), % 0.050 to 0.17
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0
0 to 0.080