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ACI-ASTM CK3MCuN Steel vs. ASTM A203 Steel

Both ACI-ASTM CK3MCuN steel and ASTM A203 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 CK3MCuN steel and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
22 to 26
Fatigue Strength, MPa 250
210 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 620
520 to 590
Tensile Strength: Yield (Proof), MPa 290
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 29
3.2 to 4.0
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.6
1.6 to 1.7
Embodied Energy, MJ/kg 76
21 to 23
Embodied Water, L/kg 190
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
230 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
18 to 21
Strength to Weight: Bending, points 20
18 to 20
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 14
15 to 17