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EN 1.4308 Stainless Steel vs. EN 1.0503 Steel

Both EN 1.4308 stainless steel and EN 1.0503 steel are iron alloys. They have 71% 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 1.4308 stainless steel and the bottom bar is EN 1.0503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16
Fatigue Strength, MPa 160
210
Impact Strength: V-Notched Charpy, J 67
16
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 510
630
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 960
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
48
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 43
19
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
83
Resilience: Unit (Modulus of Resilience), kJ/m3 100
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 4.1
13
Thermal Shock Resistance, points 11
20

Alloy Composition

Carbon (C), % 0 to 0.070
0.42 to 0.5
Chromium (Cr), % 18 to 20
0 to 0.4
Iron (Fe), % 65.9 to 74
97.3 to 99.08
Manganese (Mn), % 0 to 1.5
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 8.0 to 11
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.045