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SAE-AISI 1008 Steel vs. EN 1.4422 Stainless Steel

Both SAE-AISI 1008 steel and EN 1.4422 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1008 steel and the bottom bar is EN 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22 to 33
17
Fatigue Strength, MPa 150 to 220
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 220 to 230
520
Tensile Strength: Ultimate (UTS), MPa 330 to 370
850
Tensile Strength: Yield (Proof), MPa 190 to 310
630

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
760
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 62
16
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
37
Embodied Water, L/kg 45
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
130
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 13
30
Strength to Weight: Bending, points 13 to 15
25
Thermal Diffusivity, mm2/s 17
4.3
Thermal Shock Resistance, points 10 to 12
31

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.020
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 99.31 to 99.7
76.8 to 83.5
Manganese (Mn), % 0.3 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 0
4.0 to 5.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.0030