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ASTM A414 Steel vs. R30556 Alloy

Both ASTM A414 steel and R30556 alloy are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A414 steel and the bottom bar is R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 15 to 26
45
Fatigue Strength, MPa 140 to 260
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 230 to 370
550
Tensile Strength: Ultimate (UTS), MPa 360 to 590
780
Tensile Strength: Yield (Proof), MPa 190 to 350
350

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 49 to 50
11
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.3
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
70
Density, g/cm3 7.8 to 7.9
8.4
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
8.7
Embodied Energy, MJ/kg 20 to 22
130
Embodied Water, L/kg 48
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 130
290
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 330
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 13 to 21
26
Strength to Weight: Bending, points 14 to 20
22
Thermal Diffusivity, mm2/s 13
2.9
Thermal Shock Resistance, points 11 to 17
18