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ASTM A572 Steel vs. ACI-ASTM CN7MS Steel

Both ASTM A572 steel and ACI-ASTM CN7MS steel are iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A572 steel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 190
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 25
39
Fatigue Strength, MPa 240 to 340
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 470 to 620
540
Tensile Strength: Yield (Proof), MPa 330 to 510
230

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 400
1040
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
28
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
5.1
Embodied Energy, MJ/kg 22
71
Embodied Water, L/kg 47
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 690
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 22
19
Strength to Weight: Bending, points 17 to 21
19
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 14 to 18
13