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ASTM A372 Grade M Steel vs. S24000 Stainless Steel

Both ASTM A372 grade M steel and S24000 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, 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 S24000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
39
Fatigue Strength, MPa 450 to 520
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 510 to 570
530
Tensile Strength: Ultimate (UTS), MPa 810 to 910
770
Tensile Strength: Yield (Proof), MPa 660 to 770
430

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 450
910
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
12
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 27
39
Embodied Water, L/kg 61
150

Common Calculations

PREN (Pitting Resistance) 3.4
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
260
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1580
470
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 32
28
Strength to Weight: Bending, points 24 to 27
24
Thermal Shock Resistance, points 24 to 27
16

Alloy Composition

Carbon (C), % 0 to 0.23
0 to 0.080
Chromium (Cr), % 1.5 to 2.0
17 to 19
Iron (Fe), % 92.5 to 95.1
61.5 to 69
Manganese (Mn), % 0.2 to 0.4
11.5 to 14.5
Molybdenum (Mo), % 0.4 to 0.6
0
Nickel (Ni), % 2.8 to 3.9
2.3 to 3.7
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.015
0 to 0.060
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0 to 0.080
0