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EN 1.5508 Steel vs. EN 1.4911 Stainless Steel

Both EN 1.5508 steel and EN 1.4911 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.5508 steel and the bottom bar is EN 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 20
11
Fatigue Strength, MPa 210 to 320
530
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 300 to 360
640
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
1070
Tensile Strength: Yield (Proof), MPa 310 to 490
970

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
700
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
20
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.4
Embodied Energy, MJ/kg 19
49
Embodied Water, L/kg 47
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
120
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
2410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 52
38
Strength to Weight: Bending, points 16 to 36
30
Thermal Diffusivity, mm2/s 14
5.4
Thermal Shock Resistance, points 12 to 43
37

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0.0050 to 0.015
Carbon (C), % 0.2 to 0.25
0.050 to 0.12
Chromium (Cr), % 0 to 0.3
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.9 to 99.199
75.7 to 83.8
Manganese (Mn), % 0.6 to 0.9
0.3 to 1.3
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 0
0.2 to 1.2
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0.1 to 0.8
Sulfur (S), % 0 to 0.025
0 to 0.015
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4