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EN 1.0034 Steel vs. EN 1.0050 Steel

Both EN 1.0034 steel and EN 1.0050 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0034 steel and the bottom bar is EN 1.0050 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 97 to 110
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.0 to 32
18
Fatigue Strength, MPa 140 to 170
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 220 to 230
330
Tensile Strength: Ultimate (UTS), MPa 340 to 380
530
Tensile Strength: Yield (Proof), MPa 180 to 280
280

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
7.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.7
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 45
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 95
81
Resilience: Unit (Modulus of Resilience), kJ/m3 84 to 210
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 13
19
Strength to Weight: Bending, points 14 to 15
18
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 11 to 12
17

Alloy Composition

Carbon (C), % 0 to 0.15
0
Iron (Fe), % 98.7 to 100
99.876 to 100
Manganese (Mn), % 0 to 0.7
0
Nitrogen (N), % 0
0 to 0.014
Phosphorus (P), % 0 to 0.045
0 to 0.055
Silicon (Si), % 0 to 0.35
0
Sulfur (S), % 0 to 0.045
0 to 0.055