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EN 1.5663 Steel vs. ASTM A372 Grade K Steel

Both EN 1.5663 steel and ASTM A372 grade K steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a moderately high 93% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.5663 steel and the bottom bar is ASTM A372 grade K steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
23
Fatigue Strength, MPa 450
440
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 470
490
Tensile Strength: Ultimate (UTS), MPa 750
780
Tensile Strength: Yield (Proof), MPa 660
620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
440
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.4
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.3
1.8
Embodied Energy, MJ/kg 31
24
Embodied Water, L/kg 63
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
1010
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
27
Strength to Weight: Bending, points 23
24
Thermal Shock Resistance, points 22
23

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.18
Chromium (Cr), % 0
1.0 to 1.8
Iron (Fe), % 88.6 to 91.2
93.4 to 96.6
Manganese (Mn), % 0.3 to 0.8
0.1 to 0.4
Molybdenum (Mo), % 0 to 0.1
0.2 to 0.6
Nickel (Ni), % 8.5 to 10
2.0 to 3.3
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 0.35
0.15 to 0.35
Sulfur (S), % 0 to 0.0050
0 to 0.010
Vanadium (V), % 0 to 0.010
0