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ASTM A372 Grade M Steel vs. S13800 Stainless Steel

Both ASTM A372 grade M steel and S13800 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 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 ASTM A372 grade M steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
11 to 18
Fatigue Strength, MPa 450 to 520
410 to 870
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 510 to 570
610 to 1030
Tensile Strength: Ultimate (UTS), MPa 810 to 910
980 to 1730
Tensile Strength: Yield (Proof), MPa 660 to 770
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 450
810
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
15
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.0
3.4
Embodied Energy, MJ/kg 27
46
Embodied Water, L/kg 61
140

Common Calculations

PREN (Pitting Resistance) 3.4
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1580
1090 to 5490
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 32
35 to 61
Strength to Weight: Bending, points 24 to 27
28 to 41
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 24 to 27
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0 to 0.23
0 to 0.050
Chromium (Cr), % 1.5 to 2.0
12.3 to 13.2
Iron (Fe), % 92.5 to 95.1
73.6 to 77.3
Manganese (Mn), % 0.2 to 0.4
0 to 0.2
Molybdenum (Mo), % 0.4 to 0.6
2.0 to 3.0
Nickel (Ni), % 2.8 to 3.9
7.5 to 8.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.015
0 to 0.010
Silicon (Si), % 0 to 0.3
0 to 0.1
Sulfur (S), % 0 to 0.010
0 to 0.0080
Vanadium (V), % 0 to 0.080
0

Comparable Variants