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SAE-AISI M2 Steel vs. EN 1.4525 Stainless Steel

Both SAE-AISI M2 steel and EN 1.4525 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 22 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 M2 steel and the bottom bar is EN 1.4525 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
1030 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1570
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 22
18
Thermal Expansion, µm/m-K 10
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
13
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
2.8
Embodied Energy, MJ/kg 130
39
Embodied Water, L/kg 98
130

Common Calculations

PREN (Pitting Resistance) 31
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25 to 71
36 to 45
Strength to Weight: Bending, points 22 to 44
29 to 33
Thermal Diffusivity, mm2/s 5.9
4.7
Thermal Shock Resistance, points 27 to 76
34 to 41

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.070
Chromium (Cr), % 3.8 to 4.5
15 to 17
Copper (Cu), % 0 to 0.25
2.5 to 4.0
Iron (Fe), % 78.5 to 83.4
70.4 to 79
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
0 to 0.8
Nickel (Ni), % 0 to 0.3
3.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0

Comparable Variants