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SAE-AISI M2 Steel vs. EN 1.6982 Stainless Steel

Both SAE-AISI M2 steel and EN 1.6982 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is EN 1.6982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
800

Thermal Properties

Latent Heat of Fusion, J/g 260
280
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 22
25
Thermal Expansion, µm/m-K 10
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
10
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
2.4
Embodied Energy, MJ/kg 130
33
Embodied Water, L/kg 98
110

Common Calculations

PREN (Pitting Resistance) 31
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25 to 71
28
Strength to Weight: Bending, points 22 to 44
25
Thermal Diffusivity, mm2/s 5.9
6.6
Thermal Shock Resistance, points 27 to 76
29

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
12 to 13.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
78.7 to 84.5
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
0 to 0.7
Nickel (Ni), % 0 to 0.3
3.5 to 5.0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0