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SAE-AISI M1 Steel vs. EN 1.4818 Stainless Steel

Both SAE-AISI M1 steel and EN 1.4818 stainless steel are iron alloys. They have 73% 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 M1 steel and the bottom bar is EN 1.4818 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 730 to 2140
700

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1560
1410
Melting Onset (Solidus), °C 1510
1370
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 29
17
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 7.0
3.1
Embodied Energy, MJ/kg 99
44
Embodied Water, L/kg 98
150

Common Calculations

PREN (Pitting Resistance) 35
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 73
25
Strength to Weight: Bending, points 22 to 45
23
Thermal Diffusivity, mm2/s 8.0
4.5
Thermal Shock Resistance, points 23 to 66
15

Alloy Composition

Carbon (C), % 0.78 to 0.88
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 3.5 to 4.0
18 to 20
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81 to 84.8
65.6 to 71.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 8.2 to 9.2
0
Nickel (Ni), % 0 to 0.3
9.0 to 11
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.5
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0