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SAE-AISI O7 Steel vs. EN 1.4596 Stainless Steel

Both SAE-AISI O7 steel and EN 1.4596 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O7 steel and the bottom bar is EN 1.4596 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 680 to 2110
1030 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
15
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.3
3.5
Embodied Energy, MJ/kg 33
48
Embodied Water, L/kg 52
130

Common Calculations

PREN (Pitting Resistance) 3.6
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 74
36 to 56
Strength to Weight: Bending, points 22 to 46
29 to 39
Thermal Shock Resistance, points 23 to 70
35 to 54

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.1
Carbon (C), % 1.1 to 1.3
0 to 0.015
Chromium (Cr), % 0.35 to 0.85
11.5 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 92.9 to 97.6
73.4 to 76.4
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 0 to 0.3
1.9 to 2.2
Nickel (Ni), % 0 to 0.3
9.2 to 10.2
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0.28 to 0.4
Tungsten (W), % 1.0 to 2.0
0
Vanadium (V), % 0 to 0.4
0