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ASTM Grade HE Steel vs. ASTM A356 Grade 9

Both ASTM grade HE steel and ASTM A356 grade 9 are iron alloys. They have 63% 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 ASTM A356 grade 9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 10
17
Fatigue Strength, MPa 160
310
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 670
670
Tensile Strength: Yield (Proof), MPa 310
460

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
440
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
41
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.5
2.4
Embodied Energy, MJ/kg 50
33
Embodied Water, L/kg 190
56

Common Calculations

PREN (Pitting Resistance) 29
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
100
Resilience: Unit (Modulus of Resilience), kJ/m3 240
570
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 3.6
11
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.2
Chromium (Cr), % 26 to 30
1.0 to 1.5
Iron (Fe), % 53.9 to 65.8
95.2 to 97.2
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.2
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0.2 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.2 to 0.35