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EN 1.4378 Stainless Steel vs. EN 1.8505 Steel

Both EN 1.4378 stainless steel and EN 1.8505 steel are iron alloys. They have 68% of their average alloy composition in common. There are 28 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 1.4378 stainless steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
320
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 34
13
Fatigue Strength, MPa 340 to 550
540
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 510 to 680
630
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
1050
Tensile Strength: Yield (Proof), MPa 430 to 970
860

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
440
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.8
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.6
Embodied Energy, MJ/kg 39
22
Embodied Water, L/kg 150
65

Common Calculations

PREN (Pitting Resistance) 23
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
120
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
1950
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
37
Strength to Weight: Bending, points 24 to 31
30
Thermal Shock Resistance, points 16 to 23
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.080
0.28 to 0.35
Chromium (Cr), % 17 to 19
1.5 to 1.8
Iron (Fe), % 61.2 to 69
95.4 to 97.1
Manganese (Mn), % 11.5 to 14.5
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 2.3 to 3.7
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035