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ASTM A414 Steel vs. ASTM Grade HD Steel

Both ASTM A414 steel and ASTM grade HD steel are iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A414 steel and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15 to 26
9.1
Fatigue Strength, MPa 140 to 260
140
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 360 to 590
590
Tensile Strength: Yield (Proof), MPa 190 to 350
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 49 to 50
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
17
Density, g/cm3 7.8 to 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
3.1
Embodied Energy, MJ/kg 20 to 22
45
Embodied Water, L/kg 48
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 130
44
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 330
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 13 to 21
21
Strength to Weight: Bending, points 14 to 20
20
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 11 to 17
19