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ASTM A148 Cast Steel vs. ASTM Grade HH Steel

Both ASTM A148 cast steel and ASTM grade HH 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 A148 cast steel and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 390
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 25
11
Fatigue Strength, MPa 280 to 670
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 630 to 1300
580
Tensile Strength: Yield (Proof), MPa 390 to 1160
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400 to 430
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 37 to 47
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3 to 7.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.3
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
3.7
Embodied Energy, MJ/kg 20 to 22
53
Embodied Water, L/kg 48 to 53
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
53
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 3570
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 46
21
Strength to Weight: Bending, points 21 to 34
20
Thermal Diffusivity, mm2/s 9.9 to 13
3.8
Thermal Shock Resistance, points 18 to 38
12