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AISI 422 Stainless Steel vs. ASTM A266 Carbon Steel

Both AISI 422 stainless steel and ASTM A266 carbon steel are iron alloys. 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 AISI 422 stainless steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
21 to 26
Fatigue Strength, MPa 410 to 500
170 to 200
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34 to 40
34 to 43
Shear Modulus, GPa 76
73
Shear Strength, MPa 560 to 660
320 to 380
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
500 to 600
Tensile Strength: Yield (Proof), MPa 670 to 870
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 650
400
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1470
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
51 to 52
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 44
18 to 19
Embodied Water, L/kg 100
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
140 to 230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 38
18 to 21
Strength to Weight: Bending, points 26 to 30
18 to 20
Thermal Diffusivity, mm2/s 6.4
14
Thermal Shock Resistance, points 33 to 39
16 to 19