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AISI 302B Stainless Steel vs. S41425 Stainless Steel

Both AISI 302B stainless steel and S41425 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 302B stainless steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
280
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
17
Fatigue Strength, MPa 210
450
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
51
Shear Modulus, GPa 76
77
Shear Strength, MPa 410
570
Tensile Strength: Ultimate (UTS), MPa 580
920
Tensile Strength: Yield (Proof), MPa 230
750

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 930
810
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
13
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.9
Embodied Energy, MJ/kg 43
40
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 19
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
150
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1420
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
33
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 4.4
4.4
Thermal Shock Resistance, points 13
33

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 17 to 19
12 to 15
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 65.7 to 73
74 to 81.9
Manganese (Mn), % 0 to 2.0
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 8.0 to 10
4.0 to 7.0
Nitrogen (N), % 0 to 0.1
0.060 to 0.12
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 2.0 to 3.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050