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ASTM A514 Steel vs. ASTM A321 Carbon Steel

Both ASTM A514 steel and ASTM A321 carbon 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 A514 steel and the bottom bar is ASTM A321 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 250
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 21
21
Fatigue Strength, MPa 470 to 540
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 490 to 520
420
Tensile Strength: Ultimate (UTS), MPa 790 to 830
670
Tensile Strength: Yield (Proof), MPa 690 to 770
390

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
250
Maximum Temperature: Mechanical, °C 400 to 440
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 37 to 51
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.8
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.8
1.8
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6 to 1.8
1.4
Embodied Energy, MJ/kg 21 to 25
18
Embodied Water, L/kg 48 to 57
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 170
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1280 to 1590
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 29
24
Strength to Weight: Bending, points 24 to 25
22
Thermal Diffusivity, mm2/s 10 to 14
14
Thermal Shock Resistance, points 23 to 24
21