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ASTM A285 Carbon Steel vs. ASTM A372 Grade K Steel

Both ASTM A285 carbon steel and ASTM A372 grade K steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A285 carbon steel and the bottom bar is ASTM A372 grade K steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 30 to 34
23
Fatigue Strength, MPa 150 to 180
440
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 250 to 290
490
Tensile Strength: Ultimate (UTS), MPa 380 to 450
780
Tensile Strength: Yield (Proof), MPa 190 to 230
620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420 to 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.8
Embodied Energy, MJ/kg 18
24
Embodied Water, L/kg 46
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
1010
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 16
27
Strength to Weight: Bending, points 15 to 17
24
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 12 to 14
23