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EN 1.4347 Stainless Steel vs. SAE-AISI 1080 Steel

Both EN 1.4347 stainless steel and SAE-AISI 1080 steel are iron alloys. They have 67% of their average alloy composition in common. There are 29 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 EN 1.4347 stainless steel and the bottom bar is SAE-AISI 1080 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
11
Fatigue Strength, MPa 320
300 to 360
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 660
770 to 870
Tensile Strength: Yield (Proof), MPa 480
480 to 590

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
11

Otherwise Unclassified Properties

Base Metal Price, % relative 16
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 44
19
Embodied Water, L/kg 170
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
80 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 570
610 to 920
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
27 to 31
Strength to Weight: Bending, points 22
24 to 26
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 19
25 to 29

Alloy Composition

Carbon (C), % 0 to 0.050
0.75 to 0.88
Chromium (Cr), % 25 to 27
0
Iron (Fe), % 62.2 to 69.4
98.1 to 98.7
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
Nickel (Ni), % 5.5 to 7.5
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.020
0 to 0.050