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ASTM Grade HE Steel vs. EN 1.0303 Steel

Both ASTM grade HE steel and EN 1.0303 steel are iron alloys. They have 60% of their average alloy composition in common. There are 30 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 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
84 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 10
12 to 25
Fatigue Strength, MPa 160
150 to 230
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 670
290 to 410
Tensile Strength: Yield (Proof), MPa 310
200 to 320

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 14
53
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.5
1.4
Embodied Energy, MJ/kg 50
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
30 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 240
110 to 270
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
10 to 15
Strength to Weight: Bending, points 22
12 to 16
Thermal Diffusivity, mm2/s 3.6
14
Thermal Shock Resistance, points 14
9.2 to 13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0.2 to 0.5
0.020 to 0.060
Chromium (Cr), % 26 to 30
0
Iron (Fe), % 53.9 to 65.8
99.335 to 99.71
Manganese (Mn), % 0 to 2.0
0.25 to 0.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.040
0 to 0.025