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AISI 422 Stainless Steel vs. SAE-AISI 1039 Steel

Both AISI 422 stainless steel and SAE-AISI 1039 steel are iron alloys. They have 85% 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 SAE-AISI 1039 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
14 to 18
Fatigue Strength, MPa 410 to 500
230 to 370
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34 to 40
40 to 45
Shear Modulus, GPa 76
73
Shear Strength, MPa 560 to 660
380 to 420
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
610 to 690
Tensile Strength: Yield (Proof), MPa 670 to 870
340 to 580

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
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
8.1

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
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
88 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
310 to 890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 38
22 to 24
Strength to Weight: Bending, points 26 to 30
20 to 22
Thermal Diffusivity, mm2/s 6.4
14
Thermal Shock Resistance, points 33 to 39
19 to 22

Alloy Composition

Carbon (C), % 0.2 to 0.25
0.37 to 0.44
Chromium (Cr), % 11 to 12.5
0
Iron (Fe), % 81.9 to 85.8
98.5 to 98.9
Manganese (Mn), % 0.5 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0.5 to 1.0
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.025
0 to 0.050
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0