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EN 1.4372 Stainless Steel vs. EN 1.8515 Steel

Both EN 1.4372 stainless steel and EN 1.8515 steel are iron alloys. They have 75% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4372 stainless steel and the bottom bar is EN 1.8515 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 47
11
Fatigue Strength, MPa 330
580
Impact Strength: V-Notched Charpy, J 90
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 560
680
Tensile Strength: Ultimate (UTS), MPa 790
1130
Tensile Strength: Yield (Proof), MPa 350
940

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 880
470
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.6
Embodied Energy, MJ/kg 38
22
Embodied Water, L/kg 140
60

Common Calculations

PREN (Pitting Resistance) 19
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
120
Resilience: Unit (Modulus of Resilience), kJ/m3 320
2310
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
40
Strength to Weight: Bending, points 25
31
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 17
33

Alloy Composition

Carbon (C), % 0 to 0.15
0.28 to 0.35
Chromium (Cr), % 16 to 18
2.8 to 3.3
Iron (Fe), % 67.5 to 75
94.7 to 96.5
Manganese (Mn), % 5.5 to 7.5
0.4 to 0.7
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 3.5 to 5.5
0 to 0.3
Nitrogen (N), % 0.050 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035