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AISI 410S Stainless Steel vs. AISI 302B Stainless Steel

Both AISI 410S stainless steel and AISI 302B stainless steel are iron alloys. Both are furnished in the annealed condition. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is AISI 410S stainless steel and the bottom bar is AISI 302B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
45
Fatigue Strength, MPa 180
210
Poisson's Ratio 0.28
0.28
Reduction in Area, % 50
57
Rockwell B Hardness 78
84
Shear Modulus, GPa 76
76
Shear Strength, MPa 310
410
Tensile Strength: Ultimate (UTS), MPa 480
580
Tensile Strength: Yield (Proof), MPa 250
230

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 740
930
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 30
17
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
15
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.9
3.0
Embodied Energy, MJ/kg 27
43
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 13
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
210
Resilience: Unit (Modulus of Resilience), kJ/m3 170
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 8.1
4.4
Thermal Shock Resistance, points 17
13

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 11.5 to 13.5
17 to 19
Iron (Fe), % 83.8 to 88.5
65.7 to 73
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0 to 0.6
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030