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AISI 422 Stainless Steel vs. SAE-AISI D4 Steel

Both AISI 422 stainless steel and SAE-AISI D4 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
8.4 to 15
Fatigue Strength, MPa 410 to 500
310 to 920
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
74
Shear Strength, MPa 560 to 660
460 to 1210
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
760 to 2060
Tensile Strength: Yield (Proof), MPa 670 to 870
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1470
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
31
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
8.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.3
Embodied Energy, MJ/kg 44
49
Embodied Water, L/kg 100
100

Common Calculations

PREN (Pitting Resistance) 17
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
100 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 38
27 to 75
Strength to Weight: Bending, points 26 to 30
24 to 47
Thermal Diffusivity, mm2/s 6.4
8.3
Thermal Shock Resistance, points 33 to 39
23 to 63

Alloy Composition

Carbon (C), % 0.2 to 0.25
2.1 to 2.4
Chromium (Cr), % 11 to 12.5
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 81.9 to 85.8
80.6 to 86.3
Manganese (Mn), % 0.5 to 1.0
0 to 0.6
Molybdenum (Mo), % 0.9 to 1.3
0.7 to 1.2
Nickel (Ni), % 0.5 to 1.0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0 to 1.0

Comparable Variants