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S32101 Stainless Steel vs. SAE-AISI 1070 Steel

Both S32101 stainless steel and SAE-AISI 1070 steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S32101 stainless steel and the bottom bar is SAE-AISI 1070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
10 to 13
Fatigue Strength, MPa 400
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Shear Strength, MPa 490
380 to 460
Tensile Strength: Ultimate (UTS), MPa 740
640 to 760
Tensile Strength: Yield (Proof), MPa 500
420 to 560

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 38
19
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
59 to 86
Resilience: Unit (Modulus of Resilience), kJ/m3 640
470 to 850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
23 to 27
Strength to Weight: Bending, points 24
21 to 24
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 20
21 to 25

Alloy Composition

Carbon (C), % 0 to 0.040
0.65 to 0.75
Chromium (Cr), % 21 to 22
0
Copper (Cu), % 0.1 to 0.8
0
Iron (Fe), % 67.3 to 73.3
98.3 to 98.8
Manganese (Mn), % 4.0 to 6.0
0.6 to 0.9
Molybdenum (Mo), % 0.1 to 0.8
0
Nickel (Ni), % 1.4 to 1.7
0
Nitrogen (N), % 0.2 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050