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AISI 201L Stainless Steel vs. ASTM A372 Grade M Steel

Both AISI 201L stainless steel and ASTM A372 grade M steel are iron alloys. They have 77% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 201L stainless steel and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 320
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22 to 46
18 to 21
Fatigue Strength, MPa 270 to 530
450 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 520 to 660
510 to 570
Tensile Strength: Ultimate (UTS), MPa 740 to 1040
810 to 910
Tensile Strength: Yield (Proof), MPa 290 to 790
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 880
450
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 38
27
Embodied Water, L/kg 140
61

Common Calculations

PREN (Pitting Resistance) 19
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
160
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1570
1140 to 1580
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 37
29 to 32
Strength to Weight: Bending, points 24 to 30
24 to 27
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 16 to 23
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.23
Chromium (Cr), % 16 to 18
1.5 to 2.0
Iron (Fe), % 67.9 to 75
92.5 to 95.1
Manganese (Mn), % 5.5 to 7.5
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 3.5 to 5.5
2.8 to 3.9
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0
0 to 0.080

Comparable Variants