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ASTM Grade HE Steel vs. EN 1.6580 Steel

Both ASTM grade HE steel and EN 1.6580 steel are iron alloys. They have 65% 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 HE steel and the bottom bar is EN 1.6580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
220 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 10
11 to 19
Fatigue Strength, MPa 160
310 to 610
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 670
720 to 1170
Tensile Strength: Yield (Proof), MPa 310
460 to 990

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
450
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 14
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
4.3
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.5
1.8
Embodied Energy, MJ/kg 50
23
Embodied Water, L/kg 190
59

Common Calculations

PREN (Pitting Resistance) 29
3.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 240
560 to 2590
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
26 to 41
Strength to Weight: Bending, points 22
23 to 31
Thermal Diffusivity, mm2/s 3.6
11
Thermal Shock Resistance, points 14
21 to 34

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.26 to 0.34
Chromium (Cr), % 26 to 30
1.8 to 2.2
Iron (Fe), % 53.9 to 65.8
93.7 to 95.5
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.5
Nickel (Ni), % 8.0 to 11
1.8 to 2.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035