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EN 1.4959 Stainless Steel vs. SAE-AISI M41 Steel

Both EN 1.4959 stainless steel and SAE-AISI M41 steel are iron alloys. They have 50% 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 EN 1.4959 stainless steel and the bottom bar is SAE-AISI M41 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 630
800 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1400
1600
Melting Onset (Solidus), °C 1350
1550
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 12
22
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
33
Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 5.4
9.1
Embodied Energy, MJ/kg 76
140
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 21
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
26 to 76
Strength to Weight: Bending, points 20
23 to 46
Thermal Diffusivity, mm2/s 3.2
6.0
Thermal Shock Resistance, points 15
25 to 71

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0
Carbon (C), % 0.050 to 0.1
1.1 to 1.2
Chromium (Cr), % 19 to 22
3.8 to 4.5
Cobalt (Co), % 0 to 0.5
4.8 to 5.8
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 39.4 to 50.5
73.4 to 78.9
Manganese (Mn), % 0 to 1.5
0.2 to 0.6
Molybdenum (Mo), % 0
3.3 to 4.3
Nickel (Ni), % 30 to 34
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.7
0.15 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.25 to 0.65
0
Tungsten (W), % 0
6.3 to 7.0
Vanadium (V), % 0
1.8 to 2.3