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ASTM Grade HE Steel vs. EN 1.7390 Steel

Both ASTM grade HE steel and EN 1.7390 steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 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 ASTM grade HE steel and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 10
16
Fatigue Strength, MPa 160
310
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 670
710
Tensile Strength: Yield (Proof), MPa 310
480

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 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
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
4.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.5
1.7
Embodied Energy, MJ/kg 50
23
Embodied Water, L/kg 190
69

Common Calculations

PREN (Pitting Resistance) 29
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
100
Resilience: Unit (Modulus of Resilience), kJ/m3 240
600
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 3.6
11
Thermal Shock Resistance, points 14
20

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.18
Chromium (Cr), % 26 to 30
4.0 to 6.0
Iron (Fe), % 53.9 to 65.8
91.9 to 95.3
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.45 to 0.65
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.015