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EN 1.5508 Steel vs. AISI 422 Stainless Steel

Both EN 1.5508 steel and AISI 422 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.5508 steel and the bottom bar is AISI 422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
260 to 330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 20
15 to 17
Fatigue Strength, MPa 210 to 320
410 to 500
Poisson's Ratio 0.29
0.28
Reduction in Area, % 62 to 74
34 to 40
Shear Modulus, GPa 73
76
Shear Strength, MPa 300 to 360
560 to 660
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
910 to 1080
Tensile Strength: Yield (Proof), MPa 310 to 490
670 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
650
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
24
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
44
Embodied Water, L/kg 47
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
1140 to 1910
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 52
32 to 38
Strength to Weight: Bending, points 16 to 36
26 to 30
Thermal Diffusivity, mm2/s 14
6.4
Thermal Shock Resistance, points 12 to 43
33 to 39

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0.2 to 0.25
Chromium (Cr), % 0 to 0.3
11 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.9 to 99.199
81.9 to 85.8
Manganese (Mn), % 0.6 to 0.9
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0
0.5 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.025
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3

Comparable Variants