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AISI 422 Stainless Steel vs. ACI-ASTM CA6N Steel

Both AISI 422 stainless steel and ACI-ASTM CA6N steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. 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 ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
17
Fatigue Strength, MPa 410 to 500
640
Poisson's Ratio 0.28
0.28
Reduction in Area, % 34 to 40
57
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
1080
Tensile Strength: Yield (Proof), MPa 670 to 870
1060

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 380
390
Maximum Temperature: Mechanical, °C 650
740
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
23
Thermal Expansion, µm/m-K 10
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.5
Embodied Energy, MJ/kg 44
35
Embodied Water, L/kg 100
110

Common Calculations

PREN (Pitting Resistance) 17
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
2900
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 38
38
Strength to Weight: Bending, points 26 to 30
30
Thermal Diffusivity, mm2/s 6.4
6.1
Thermal Shock Resistance, points 33 to 39
40

Alloy Composition

Carbon (C), % 0.2 to 0.25
0 to 0.060
Chromium (Cr), % 11 to 12.5
10.5 to 12.5
Iron (Fe), % 81.9 to 85.8
77.9 to 83.5
Manganese (Mn), % 0.5 to 1.0
0 to 0.5
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0.5 to 1.0
6.0 to 8.0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0