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EN 1.4123 Stainless Steel vs. EN 1.8515 Steel

Both EN 1.4123 stainless steel and EN 1.8515 steel are iron alloys. They have 85% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4123 stainless steel and the bottom bar is EN 1.8515 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 720 to 810
1130

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 840
470
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 4.2
1.6
Embodied Energy, MJ/kg 62
22
Embodied Water, L/kg 120
60

Common Calculations

PREN (Pitting Resistance) 24
4.4
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 29
40
Strength to Weight: Bending, points 23 to 25
31
Thermal Diffusivity, mm2/s 6.3
11
Thermal Shock Resistance, points 26 to 29
33

Alloy Composition

Carbon (C), % 0.35 to 0.5
0.28 to 0.35
Chromium (Cr), % 14 to 16.5
2.8 to 3.3
Iron (Fe), % 76.7 to 84.6
94.7 to 96.5
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 1.0 to 2.5
0.3 to 0.5
Nickel (Ni), % 0 to 0.5
0 to 0.3
Nitrogen (N), % 0.1 to 0.3
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 0.030
0 to 0.035
Vanadium (V), % 0 to 1.5
0