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EN 1.4003 Stainless Steel vs. EN 1.8515 Steel

Both EN 1.4003 stainless steel and EN 1.8515 steel are iron alloys. They have a moderately high 91% 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 1.4003 stainless steel and the bottom bar is EN 1.8515 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
11
Fatigue Strength, MPa 210
580
Impact Strength: V-Notched Charpy, J 67
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Shear Strength, MPa 340
680
Tensile Strength: Ultimate (UTS), MPa 540
1130
Tensile Strength: Yield (Proof), MPa 320
940

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 720
470
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
3.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.6
Embodied Energy, MJ/kg 27
22
Embodied Water, L/kg 97
60

Common Calculations

PREN (Pitting Resistance) 12
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 260
2310
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
40
Strength to Weight: Bending, points 19
31
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 19
33

Alloy Composition

Carbon (C), % 0 to 0.030
0.28 to 0.35
Chromium (Cr), % 10.5 to 12.5
2.8 to 3.3
Iron (Fe), % 83.9 to 89.2
94.7 to 96.5
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 0.3 to 1.0
0 to 0.3
Nitrogen (N), % 0 to 0.030
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