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ASTM A588 Steel vs. R30556 Alloy

Both ASTM A588 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 A588 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, % 22
45
Fatigue Strength, MPa 270
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 350
550
Tensile Strength: Ultimate (UTS), MPa 550
780
Tensile Strength: Yield (Proof), MPa 390
350

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410 to 1420
1330
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 43 to 44
11
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
70
Density, g/cm3 7.8
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 50 to 51
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
290
Resilience: Unit (Modulus of Resilience), kJ/m3 400
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20
26
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 12
2.9
Thermal Shock Resistance, points 16
18