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ASTM A372 Grade M Steel vs. S32615 Stainless Steel

Both ASTM A372 grade M steel and S32615 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade M steel and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 21
28
Fatigue Strength, MPa 450 to 520
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 510 to 570
400
Tensile Strength: Ultimate (UTS), MPa 810 to 910
620
Tensile Strength: Yield (Proof), MPa 660 to 770
250

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 450
990
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
24
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 2.0
4.4
Embodied Energy, MJ/kg 27
63
Embodied Water, L/kg 61
170

Common Calculations

PREN (Pitting Resistance) 3.4
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1580
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 32
23
Strength to Weight: Bending, points 24 to 27
21
Thermal Shock Resistance, points 24 to 27
15

Alloy Composition

Carbon (C), % 0 to 0.23
0 to 0.070
Chromium (Cr), % 1.5 to 2.0
16.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 92.5 to 95.1
46.4 to 57.9
Manganese (Mn), % 0.2 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.6
0.3 to 1.5
Nickel (Ni), % 2.8 to 3.9
19 to 22
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.3
4.8 to 6.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0 to 0.080
0