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EN 1.4612 Stainless Steel vs. SAE-AISI M7 Steel

Both EN 1.4612 stainless steel and SAE-AISI M7 steel are iron alloys. They have 80% of their average alloy composition in common. There are 20 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 1.4612 stainless steel and the bottom bar is SAE-AISI M7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1450
1560
Melting Onset (Solidus), °C 1400
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
18
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 3.6
8.9
Embodied Energy, MJ/kg 50
130
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 19
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 60 to 65
26 to 76
Strength to Weight: Bending, points 40 to 43
23 to 47
Thermal Shock Resistance, points 58 to 63
24 to 69

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Carbon (C), % 0 to 0.015
1.0 to 1.1
Chromium (Cr), % 11 to 12.5
3.5 to 4.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 71.5 to 75.5
79.8 to 83.8
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Molybdenum (Mo), % 1.8 to 2.3
8.2 to 9.2
Nickel (Ni), % 10.2 to 11.3
0 to 0.3
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0.2 to 0.55
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0.2 to 0.5
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.8 to 2.3

Comparable Variants