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EN 1.8509 Steel vs. EN 1.3555 Steel

Both EN 1.8509 steel and EN 1.3555 steel are iron alloys. They have 89% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 1130
770

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 440
540
Melting Completion (Liquidus), °C 1450
1500
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
5.6
Embodied Energy, MJ/kg 22
81
Embodied Water, L/kg 65
90

Common Calculations

PREN (Pitting Resistance) 2.6
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
27
Strength to Weight: Bending, points 31
23
Thermal Shock Resistance, points 33
22

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0.1 to 0.15
Chromium (Cr), % 1.5 to 1.8
3.9 to 4.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 95.5 to 97.1
85.4 to 87.7
Manganese (Mn), % 0.4 to 0.7
0.15 to 0.35
Molybdenum (Mo), % 0.2 to 0.35
4.0 to 4.5
Nickel (Ni), % 0
3.2 to 3.6
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.4
0.1 to 0.25
Sulfur (S), % 0 to 0.035
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
1.0 to 1.3