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S64512 Stainless Steel vs. AISI 422 Stainless Steel

Both S64512 stainless steel and AISI 422 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S64512 stainless steel and the bottom bar is AISI 422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
260 to 330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
15 to 17
Fatigue Strength, MPa 540
410 to 500
Poisson's Ratio 0.28
0.28
Reduction in Area, % 34
34 to 40
Shear Modulus, GPa 76
76
Shear Strength, MPa 700
560 to 660
Tensile Strength: Ultimate (UTS), MPa 1140
910 to 1080
Tensile Strength: Yield (Proof), MPa 890
670 to 870

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 390
380
Maximum Temperature: Mechanical, °C 750
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 28
24
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
3.1
Embodied Energy, MJ/kg 47
44
Embodied Water, L/kg 110
100

Common Calculations

PREN (Pitting Resistance) 18
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
1140 to 1910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
32 to 38
Strength to Weight: Bending, points 31
26 to 30
Thermal Diffusivity, mm2/s 7.5
6.4
Thermal Shock Resistance, points 42
33 to 39

Alloy Composition

Carbon (C), % 0.080 to 0.15
0.2 to 0.25
Chromium (Cr), % 11 to 12.5
11 to 12.5
Iron (Fe), % 80.6 to 84.7
81.9 to 85.8
Manganese (Mn), % 0.5 to 0.9
0.5 to 1.0
Molybdenum (Mo), % 1.5 to 2.0
0.9 to 1.3
Nickel (Ni), % 2.0 to 3.0
0.5 to 1.0
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.025
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0.25 to 0.4
0.2 to 0.3