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EN 1.6526 Steel vs. EN 1.7034 Steel

Both EN 1.6526 steel and EN 1.7034 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.6526 steel and the bottom bar is EN 1.7034 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
150 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 520 to 1460
510 to 1780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
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 39
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 50
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 52
18 to 63
Strength to Weight: Bending, points 18 to 36
18 to 42
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 15 to 43
15 to 52

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.34 to 0.41
Chromium (Cr), % 0.35 to 0.7
0.9 to 1.2
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 96.6 to 98.3
97 to 98.2
Manganese (Mn), % 0.65 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0.020 to 0.040
0 to 0.035

Comparable Variants