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EN 1.6308 Steel vs. EN 1.0503 Steel

Both EN 1.6308 steel and EN 1.0503 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.6308 steel and the bottom bar is EN 1.0503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
16
Fatigue Strength, MPa 320
210
Impact Strength: V-Notched Charpy, J 54
16
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 390
380
Tensile Strength: Ultimate (UTS), MPa 610
630
Tensile Strength: Yield (Proof), MPa 460
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
48
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 50
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
83
Resilience: Unit (Modulus of Resilience), kJ/m3 550
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 10
13
Thermal Shock Resistance, points 18
20

Alloy Composition

Carbon (C), % 0 to 0.2
0.42 to 0.5
Chromium (Cr), % 0
0 to 0.4
Iron (Fe), % 96.4 to 97.9
97.3 to 99.08
Manganese (Mn), % 1.2 to 1.6
0.5 to 0.8
Molybdenum (Mo), % 0.45 to 0.55
0 to 0.1
Nickel (Ni), % 0.5 to 0.8
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.045
Vanadium (V), % 0 to 0.030
0