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ASTM Grade HN Steel vs. ASTM A27 Cast Steel

Both ASTM grade HN steel and ASTM A27 cast steel are iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
25 to 27
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
400
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 13
52
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.6
1.4
Embodied Energy, MJ/kg 66
18
Embodied Water, L/kg 180
45 to 46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
16 to 20
Strength to Weight: Bending, points 18
17 to 19
Thermal Diffusivity, mm2/s 3.5
14
Thermal Shock Resistance, points 11
15 to 18