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SAE-AISI M3 Class 1 Steel vs. S15700 Stainless Steel

Both SAE-AISI M3 class 1 steel and S15700 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is S15700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
1180 to 1890

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1570
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
3.4
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 33
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
42 to 67
Strength to Weight: Bending, points 22 to 44
32 to 43
Thermal Diffusivity, mm2/s 7.2
4.2
Thermal Shock Resistance, points 24 to 67
39 to 63

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 1.0 to 1.1
0 to 0.090
Chromium (Cr), % 3.8 to 4.5
14 to 16
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.9 to 82.9
69.6 to 76.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.8 to 6.5
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), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0

Comparable Variants