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EN 1.0303 Steel vs. EN 1.7711 Steel

Both EN 1.0303 steel and EN 1.7711 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.0303 steel and the bottom bar is EN 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84 to 120
210 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 25
16 to 22
Fatigue Strength, MPa 150 to 230
290 to 520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 220 to 260
440 to 570
Tensile Strength: Ultimate (UTS), MPa 290 to 410
690 to 930
Tensile Strength: Yield (Proof), MPa 200 to 320
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
430
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
33
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.3
Embodied Energy, MJ/kg 18
32
Embodied Water, L/kg 46
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 94
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 270
430 to 1690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 10 to 15
24 to 33
Strength to Weight: Bending, points 12 to 16
22 to 27
Thermal Diffusivity, mm2/s 14
8.9
Thermal Shock Resistance, points 9.2 to 13
24 to 32

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0 to 0.015
Carbon (C), % 0.020 to 0.060
0.36 to 0.44
Chromium (Cr), % 0
0.9 to 1.2
Iron (Fe), % 99.335 to 99.71
96 to 97.5
Manganese (Mn), % 0.25 to 0.4
0.45 to 0.85
Molybdenum (Mo), % 0
0.5 to 0.65
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35