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ASTM A356 Grade 9 vs. ASTM A266 Carbon Steel

Both ASTM A356 grade 9 and ASTM A266 carbon steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 9 and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
21 to 26
Fatigue Strength, MPa 310
170 to 200
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
34 to 43
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 670
500 to 600
Tensile Strength: Yield (Proof), MPa 460
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
51 to 52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 33
18 to 19
Embodied Water, L/kg 56
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 570
140 to 230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
18 to 21
Strength to Weight: Bending, points 22
18 to 20
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 19
16 to 19