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EN 1.5638 Steel vs. EN 1.8958 Steel

Both EN 1.5638 steel and EN 1.8958 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.5638 steel and the bottom bar is EN 1.8958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
19
Fatigue Strength, MPa 290
150
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 580
430
Tensile Strength: Yield (Proof), MPa 410
220

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
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 52
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
2.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 52
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
70
Resilience: Unit (Modulus of Resilience), kJ/m3 450
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
15
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 17
13

Alloy Composition

Carbon (C), % 0.060 to 0.12
0 to 0.16
Chromium (Cr), % 0
0.35 to 0.85
Copper (Cu), % 0
0.2 to 0.6
Iron (Fe), % 94.4 to 96.4
96.5 to 99.3
Manganese (Mn), % 0.5 to 0.8
0.15 to 0.7
Nickel (Ni), % 3.0 to 4.0
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.040