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ASTM A36 Carbon Steel vs. AISI 422 Stainless Steel

Both ASTM A36 carbon steel and AISI 422 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is AISI 422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
260 to 330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
15 to 17
Fatigue Strength, MPa 200
410 to 500
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 300
560 to 660
Tensile Strength: Ultimate (UTS), MPa 480
910 to 1080
Tensile Strength: Yield (Proof), MPa 290
670 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
650
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
24
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 14
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 18
44
Embodied Water, L/kg 44
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 220
1140 to 1910
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
32 to 38
Strength to Weight: Bending, points 17
26 to 30
Thermal Diffusivity, mm2/s 14
6.4
Thermal Shock Resistance, points 16
33 to 39

Alloy Composition

Carbon (C), % 0 to 0.26
0.2 to 0.25
Chromium (Cr), % 0
11 to 12.5
Iron (Fe), % 99.25 to 100
81.9 to 85.8
Manganese (Mn), % 0
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0
0.5 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.025
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3