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EN 1.7139 Steel vs. EN 1.1061 Steel

Both EN 1.7139 steel and EN 1.1061 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7139 steel and the bottom bar is EN 1.1061 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 480 to 1390
530 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 44
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 51
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 49
19 to 64
Strength to Weight: Bending, points 17 to 35
19 to 42
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 14 to 41
17 to 58

Alloy Composition

Carbon (C), % 0.14 to 0.19
0.42 to 0.5
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 96.8 to 98
98.1 to 99.06
Manganese (Mn), % 1.0 to 1.3
0.5 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.3
Sulfur (S), % 0.020 to 0.040
0.020 to 0.035

Comparable Variants