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ACI-ASTM CN7M Steel vs. ASTM A148 Cast Steel

Both ACI-ASTM CN7M 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 ACI-ASTM CN7M steel and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
5.7 to 25
Fatigue Strength, MPa 190
280 to 670
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 480
630 to 1300
Tensile Strength: Yield (Proof), MPa 200
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400 to 430
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 21
37 to 47
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 32
2.3 to 3.3
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.6
1.5 to 1.7
Embodied Energy, MJ/kg 78
20 to 22
Embodied Water, L/kg 210
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 110
400 to 3570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
22 to 46
Strength to Weight: Bending, points 17
21 to 34
Thermal Diffusivity, mm2/s 5.6
9.9 to 13
Thermal Shock Resistance, points 12
18 to 38