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ASTM A148 Cast Steel vs. ASTM B817 Type I

ASTM A148 cast steel belongs to the iron alloys classification, while ASTM B817 type I belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 B817 type I.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 5.7 to 25
4.0 to 13
Fatigue Strength, MPa 280 to 670
360 to 520
Poisson's Ratio 0.29
0.32
Reduction in Area, % 13 to 45
5.0 to 29
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 630 to 1300
770 to 960
Tensile Strength: Yield (Proof), MPa 390 to 1160
700 to 860

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 400 to 430
340
Melting Completion (Liquidus), °C 1460
1600
Melting Onset (Solidus), °C 1420
1550
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 37 to 47
7.1
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3 to 7.5
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.6
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.3
36
Density, g/cm3 7.8
4.4
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
38
Embodied Energy, MJ/kg 20 to 22
610
Embodied Water, L/kg 48 to 53
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 3570
2310 to 3540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 22 to 46
48 to 60
Strength to Weight: Bending, points 21 to 34
42 to 49
Thermal Diffusivity, mm2/s 9.9 to 13
2.9
Thermal Shock Resistance, points 18 to 38
54 to 68

Comparable Variants