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EN 1.7711 Steel vs. EN 1.8503 Steel

Both EN 1.7711 steel and EN 1.8503 steel are iron alloys. Their average alloy composition is basically identical. There are 32 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 1.7711 steel and the bottom bar is EN 1.8503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 280
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 22
16
Fatigue Strength, MPa 290 to 520
600
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 440 to 570
610
Tensile Strength: Ultimate (UTS), MPa 690 to 930
1000
Tensile Strength: Yield (Proof), MPa 400 to 800
910

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 33
41
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.3
Embodied Energy, MJ/kg 32
33
Embodied Water, L/kg 54
57

Common Calculations

PREN (Pitting Resistance) 2.9
3.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 140
150
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1690
2200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 33
35
Strength to Weight: Bending, points 22 to 27
28
Thermal Diffusivity, mm2/s 8.9
11
Thermal Shock Resistance, points 24 to 32
29

Alloy Composition

Aluminum (Al), % 0 to 0.015
0 to 0.3
Carbon (C), % 0.36 to 0.44
0.16 to 0.24
Chromium (Cr), % 0.9 to 1.2
1.2 to 1.5
Iron (Fe), % 96 to 97.5
95.8 to 97.5
Manganese (Mn), % 0.45 to 0.85
0.4 to 0.8
Molybdenum (Mo), % 0.5 to 0.65
0.65 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0.25 to 0.35
0.25 to 0.35