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EN 1.5638 Steel vs. EN 1.7376 Steel

Both EN 1.5638 steel and EN 1.7376 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 90% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 1.7376 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 290
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 580
710
Tensile Strength: Yield (Proof), MPa 410
460

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
600
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.1
Embodied Energy, MJ/kg 23
29
Embodied Water, L/kg 52
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 450
560
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 17
20

Alloy Composition

Carbon (C), % 0.060 to 0.12
0.12 to 0.19
Chromium (Cr), % 0
8.0 to 10
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 94.4 to 96.4
86.2 to 90.6
Manganese (Mn), % 0.5 to 0.8
0.35 to 0.65
Molybdenum (Mo), % 0
0.9 to 1.2
Nickel (Ni), % 3.0 to 4.0
0 to 0.4
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0 to 0.050