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ASTM A372 Grade K Steel vs. EN 1.5636 Steel

Both ASTM A372 grade K steel and EN 1.5636 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 98% 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 ASTM A372 grade K steel and the bottom bar is EN 1.5636 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
27
Fatigue Strength, MPa 440
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 780
560
Tensile Strength: Yield (Proof), MPa 620
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
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 48
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
3.6
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.8
1.7
Embodied Energy, MJ/kg 24
23
Embodied Water, L/kg 57
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
20
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 23
16

Alloy Composition

Carbon (C), % 0 to 0.18
0.060 to 0.12
Chromium (Cr), % 1.0 to 1.8
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 93.4 to 96.6
94.6 to 97.4
Manganese (Mn), % 0.1 to 0.4
0.5 to 0.8
Molybdenum (Mo), % 0.2 to 0.6
0 to 0.2
Nickel (Ni), % 2.0 to 3.3
2.0 to 3.0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.015
Vanadium (V), % 0
0 to 0.050