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EN 1.3551 Steel vs. EN 1.8959 Steel

Both EN 1.3551 steel and EN 1.8959 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3551 steel and the bottom bar is EN 1.8959 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 720
570

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 530
420
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 36
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.7
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.9
1.6
Embodied Energy, MJ/kg 71
21
Embodied Water, L/kg 82
52

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 9.8
10
Thermal Shock Resistance, points 21
17

Alloy Composition

Carbon (C), % 0.77 to 0.85
0 to 0.19
Chromium (Cr), % 3.9 to 4.3
0.35 to 0.85
Copper (Cu), % 0 to 0.3
0.2 to 0.6
Iron (Fe), % 88.8 to 91.1
94.9 to 99
Manganese (Mn), % 0.15 to 0.35
0.45 to 1.6
Molybdenum (Mo), % 4.0 to 4.5
0 to 0.35
Nickel (Ni), % 0
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.55
Sulfur (S), % 0 to 0.015
0 to 0.040
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0
Zirconium (Zr), % 0
0 to 0.17