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ASTM A285 Carbon Steel vs. ZA-12

ASTM A285 carbon steel belongs to the iron alloys classification, while ZA-12 belongs to the zinc alloys. There are 31 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 A285 carbon steel and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 190
83
Elongation at Break, % 30 to 34
1.6 to 5.3
Fatigue Strength, MPa 150 to 180
73 to 120
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
33
Shear Strength, MPa 250 to 290
240 to 300
Tensile Strength: Ultimate (UTS), MPa 380 to 450
260 to 400
Tensile Strength: Yield (Proof), MPa 190 to 230
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 400
100
Melting Completion (Liquidus), °C 1470
430
Melting Onset (Solidus), °C 1420 to 1430
380
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 53
120
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
42

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.9
6.0
Embodied Carbon, kg CO2/kg material 1.4
3.4
Embodied Energy, MJ/kg 18
64
Embodied Water, L/kg 46
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
260 to 620
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 16
12 to 19
Strength to Weight: Bending, points 15 to 17
15 to 20
Thermal Diffusivity, mm2/s 14
43
Thermal Shock Resistance, points 12 to 14
9.4 to 14