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EN 1.8509 Steel vs. EN 1.0434 Steel

Both EN 1.8509 steel and EN 1.0434 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.8509 steel and the bottom bar is EN 1.0434 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
110 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
12 to 28
Fatigue Strength, MPa 580
190 to 300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 680
280 to 330
Tensile Strength: Ultimate (UTS), MPa 1130
390 to 540
Tensile Strength: Yield (Proof), MPa 940
250 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 22
18
Embodied Water, L/kg 65
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
39 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
170 to 540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
14 to 19
Strength to Weight: Bending, points 31
15 to 19
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 33
12 to 17

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0.020 to 0.060
Carbon (C), % 0.38 to 0.45
0.15 to 0.19
Chromium (Cr), % 1.5 to 1.8
0
Iron (Fe), % 95.5 to 97.1
98.8 to 99.18
Manganese (Mn), % 0.4 to 0.7
0.65 to 0.85
Molybdenum (Mo), % 0.2 to 0.35
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.035
0 to 0.025