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EN 1.4017 Stainless Steel vs. EN 1.8505 Steel

Both EN 1.4017 stainless steel and EN 1.8505 steel are iron alloys. They have 83% of their average alloy composition in common. There are 31 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 1.4017 stainless steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14
13
Fatigue Strength, MPa 220
540
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 350
630
Tensile Strength: Ultimate (UTS), MPa 580
1050
Tensile Strength: Yield (Proof), MPa 390
860

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
440
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.6
Embodied Energy, MJ/kg 31
22
Embodied Water, L/kg 120
65

Common Calculations

PREN (Pitting Resistance) 17
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
120
Resilience: Unit (Modulus of Resilience), kJ/m3 380
1950
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
37
Strength to Weight: Bending, points 20
30
Thermal Diffusivity, mm2/s 8.1
11
Thermal Shock Resistance, points 20
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.080
0.28 to 0.35
Chromium (Cr), % 16 to 18
1.5 to 1.8
Iron (Fe), % 78.3 to 82.8
95.4 to 97.1
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 1.2 to 1.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035