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ASTM A372 Grade M Steel vs. N08135 Stainless Steel

Both ASTM A372 grade M steel and N08135 stainless steel are iron alloys. They have 42% of their average alloy composition in common. There are 27 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 N08135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
46
Fatigue Strength, MPa 450 to 520
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 510 to 570
400
Tensile Strength: Ultimate (UTS), MPa 810 to 910
570
Tensile Strength: Yield (Proof), MPa 660 to 770
240

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 450
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
39
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.0
6.8
Embodied Energy, MJ/kg 27
94
Embodied Water, L/kg 61
220

Common Calculations

PREN (Pitting Resistance) 3.4
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1580
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29 to 32
19
Strength to Weight: Bending, points 24 to 27
19
Thermal Shock Resistance, points 24 to 27
13

Alloy Composition

Carbon (C), % 0 to 0.23
0 to 0.030
Chromium (Cr), % 1.5 to 2.0
20.5 to 23.5
Copper (Cu), % 0
0 to 0.7
Iron (Fe), % 92.5 to 95.1
30.2 to 42.3
Manganese (Mn), % 0.2 to 0.4
0 to 1.0
Molybdenum (Mo), % 0.4 to 0.6
4.0 to 5.0
Nickel (Ni), % 2.8 to 3.9
33 to 38
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
0.2 to 0.8
Vanadium (V), % 0 to 0.080
0