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SAE-AISI M42 Steel vs. S17600 Stainless Steel

Both SAE-AISI M42 steel and S17600 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is S17600 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 78
76
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
940 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1540
1430
Melting Onset (Solidus), °C 1490
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.4
2.9
Embodied Energy, MJ/kg 100
42
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 38
17
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
34 to 54
Strength to Weight: Bending, points 24 to 48
28 to 37
Thermal Diffusivity, mm2/s 5.4
4.1
Thermal Shock Resistance, points 25 to 71
31 to 50

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 1.1 to 1.2
0 to 0.080
Chromium (Cr), % 3.5 to 4.3
16 to 17.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
71.3 to 77.6
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 9.0 to 10
0
Nickel (Ni), % 0 to 0.3
6.0 to 7.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.4 to 1.2
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0

Comparable Variants