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ASTM Grade HK Steel vs. EN 1.7365 Steel

Both ASTM grade HK steel and EN 1.7365 steel are iron alloys. They have 58% of their average alloy composition in common. There are 31 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 grade HK steel and the bottom bar is EN 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
18
Fatigue Strength, MPa 150
320
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 500
700
Tensile Strength: Yield (Proof), MPa 270
470

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
510
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 25
4.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.8
Embodied Energy, MJ/kg 63
24
Embodied Water, L/kg 200
70

Common Calculations

PREN (Pitting Resistance) 27
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 11
20

Alloy Composition

Carbon (C), % 0.2 to 0.6
0.12 to 0.19
Chromium (Cr), % 24 to 28
4.0 to 6.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 44.8 to 57.8
91.2 to 94.9
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.45 to 0.65
Nickel (Ni), % 18 to 22
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.025
Vanadium (V), % 0
0 to 0.050