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ASTM A387 Grade 9 Steel vs. ASTM A148 Cast Steel

Both ASTM A387 grade 9 steel and ASTM A148 cast steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
5.7 to 25
Fatigue Strength, MPa 160 to 240
280 to 670
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 500 to 600
630 to 1300
Tensile Strength: Yield (Proof), MPa 230 to 350
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
400 to 430
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
37 to 47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
2.3 to 3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.5 to 1.7
Embodied Energy, MJ/kg 28
20 to 22
Embodied Water, L/kg 87
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
400 to 3570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 21
22 to 46
Strength to Weight: Bending, points 18 to 20
21 to 34
Thermal Diffusivity, mm2/s 6.9
9.9 to 13
Thermal Shock Resistance, points 14 to 17
18 to 38

Comparable Variants