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ACI-ASTM CN7M Steel vs. ASTM A514 Steel

Both ACI-ASTM CN7M steel and ASTM A514 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 A514 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
240 to 250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
18 to 21
Fatigue Strength, MPa 190
470 to 540
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 480
790 to 830
Tensile Strength: Yield (Proof), MPa 200
690 to 770

Thermal Properties

Latent Heat of Fusion, J/g 310
250 to 260
Maximum Temperature: Mechanical, °C 1100
400 to 440
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 51
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.2 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.3 to 8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 32
2.3 to 3.8
Density, g/cm3 8.1
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 5.6
1.6 to 1.8
Embodied Energy, MJ/kg 78
21 to 25
Embodied Water, L/kg 210
48 to 57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
140 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1280 to 1590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
28 to 29
Strength to Weight: Bending, points 17
24 to 25
Thermal Diffusivity, mm2/s 5.6
10 to 14
Thermal Shock Resistance, points 12
23 to 24