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EN 1.5918 Steel vs. EN 1.7375 Steel

Both EN 1.5918 steel and EN 1.7375 steel are iron alloys. They have a very high 98% 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 1.5918 steel and the bottom bar is EN 1.7375 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 530 to 1390
620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
3.9
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 21
23
Embodied Water, L/kg 56
59

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 49
22
Strength to Weight: Bending, points 18 to 35
20
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 15 to 41
18

Alloy Composition

Aluminum (Al), % 0
0.010 to 0.040
Carbon (C), % 0.14 to 0.2
0.1 to 0.15
Chromium (Cr), % 1.4 to 1.7
2.0 to 2.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 94.9 to 96.6
94.5 to 96.7
Manganese (Mn), % 0.5 to 0.9
0.3 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 1.4 to 1.7
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.010