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EN 1.8509 Steel vs. EN 1.3538 Steel

Both EN 1.8509 steel and EN 1.3538 steel are iron alloys. Their average alloy composition is basically identical. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 1.3538 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
200 to 220
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 1130
670 to 740

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
440
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
3.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 22
21
Embodied Water, L/kg 65
56

Common Calculations

PREN (Pitting Resistance) 2.6
3.3
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
24 to 26
Strength to Weight: Bending, points 31
22 to 23
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 33
20 to 22

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0 to 0.050
Carbon (C), % 0.38 to 0.45
0.93 to 1.1
Chromium (Cr), % 1.5 to 1.8
1.7 to 2.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 95.5 to 97.1
96 to 97.2
Manganese (Mn), % 0.4 to 0.7
0.6 to 0.8
Molybdenum (Mo), % 0.2 to 0.35
0.4 to 0.5
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.030