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ASTM A36 Carbon Steel vs. ASTM A285 Carbon Steel

Both ASTM A36 carbon steel and ASTM A285 carbon steel are iron alloys.

For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is ASTM A285 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
110 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
30 to 34
Fatigue Strength, MPa 200
150 to 180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
250 to 290
Tensile Strength: Ultimate (UTS), MPa 480
380 to 450
Tensile Strength: Yield (Proof), MPa 290
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420 to 1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
53
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 14
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 44
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
94 to 150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
13 to 16
Strength to Weight: Bending, points 17
15 to 17
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 16
12 to 14