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N08020 Stainless Steel vs. ASTM A372 Grade M Steel

Both N08020 stainless steel and ASTM A372 grade M steel are iron alloys. They have 43% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is N08020 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, % 15 to 34
18 to 21
Fatigue Strength, MPa 210 to 240
450 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 380 to 410
510 to 570
Tensile Strength: Ultimate (UTS), MPa 610 to 620
810 to 910
Tensile Strength: Yield (Proof), MPa 270 to 420
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
450
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 38
5.0
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 6.6
2.0
Embodied Energy, MJ/kg 92
27
Embodied Water, L/kg 220
61

Common Calculations

PREN (Pitting Resistance) 28
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 170
160
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 440
1140 to 1580
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
29 to 32
Strength to Weight: Bending, points 20
24 to 27
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 15
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.23
Chromium (Cr), % 19 to 21
1.5 to 2.0
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 29.9 to 44
92.5 to 95.1
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 2.0 to 3.0
0.4 to 0.6
Nickel (Ni), % 32 to 38
2.8 to 3.9
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.035
0 to 0.010
Vanadium (V), % 0
0 to 0.080

Comparable Variants