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S30815 Stainless Steel vs. AISI 422 Stainless Steel

Both S30815 stainless steel and AISI 422 stainless steel are iron alloys. They have 79% 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 S30815 stainless steel and the bottom bar is AISI 422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
260 to 330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
15 to 17
Fatigue Strength, MPa 320
410 to 500
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
34 to 40
Shear Modulus, GPa 77
76
Shear Strength, MPa 480
560 to 660
Tensile Strength: Ultimate (UTS), MPa 680
910 to 1080
Tensile Strength: Yield (Proof), MPa 350
670 to 870

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 430
380
Maximum Temperature: Mechanical, °C 1020
650
Melting Completion (Liquidus), °C 1400
1480
Melting Onset (Solidus), °C 1360
1470
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.3
3.1
Embodied Energy, MJ/kg 47
44
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 24
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 310
1140 to 1910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
32 to 38
Strength to Weight: Bending, points 22
26 to 30
Thermal Diffusivity, mm2/s 4.0
6.4
Thermal Shock Resistance, points 15
33 to 39

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.2 to 0.25
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 20 to 22
11 to 12.5
Iron (Fe), % 62.8 to 68.4
81.9 to 85.8
Manganese (Mn), % 0 to 0.8
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 10 to 12
0.5 to 1.0
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.4 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3