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SAE-AISI S1 Steel vs. S15700 Stainless Steel

Both SAE-AISI S1 steel and S15700 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S1 steel and the bottom bar is S15700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
1180 to 1890

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1500
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
16
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
15
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.4
Embodied Energy, MJ/kg 37
47
Embodied Water, L/kg 56
140

Common Calculations

PREN (Pitting Resistance) 5.9
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 64
42 to 67
Strength to Weight: Bending, points 22 to 42
32 to 43
Thermal Diffusivity, mm2/s 11
4.2
Thermal Shock Resistance, points 21 to 56
39 to 63

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0.4 to 0.55
0 to 0.090
Chromium (Cr), % 1.0 to 1.8
14 to 16
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 91.6 to 96.7
69.6 to 76.8
Manganese (Mn), % 0.1 to 0.4
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
6.5 to 7.7
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.5 to 3.0
0
Vanadium (V), % 0.15 to 0.3
0

Comparable Variants