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SAE-AISI M41 Steel vs. EN 1.4938 Stainless Steel

Both SAE-AISI M41 steel and EN 1.4938 stainless steel are iron alloys. They have 83% 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 M41 steel and the bottom bar is EN 1.4938 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
76
Tensile Strength: Ultimate (UTS), MPa 800 to 2290
870 to 1030

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
30
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 33
10
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.1
3.3
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 120
110

Common Calculations

PREN (Pitting Resistance) 28
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 76
31 to 37
Strength to Weight: Bending, points 23 to 46
26 to 29
Thermal Diffusivity, mm2/s 6.0
8.1
Thermal Shock Resistance, points 25 to 71
30 to 35

Alloy Composition

Carbon (C), % 1.1 to 1.2
0.080 to 0.15
Chromium (Cr), % 3.8 to 4.5
11 to 12.5
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.4 to 78.9
80.5 to 84.8
Manganese (Mn), % 0.2 to 0.6
0.4 to 0.9
Molybdenum (Mo), % 3.3 to 4.3
1.5 to 2.0
Nickel (Ni), % 0 to 0.3
2.0 to 3.0
Nitrogen (N), % 0
0.020 to 0.040
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 6.3 to 7.0
0
Vanadium (V), % 1.8 to 2.3
0.25 to 0.4

Comparable Variants