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ASTM A588 Steel vs. Nickel 690

ASTM A588 steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys.

For each property being compared, the top bar is ASTM A588 steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
90
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
3.4 to 34
Fatigue Strength, MPa 270
180 to 300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 350
420 to 570
Tensile Strength: Ultimate (UTS), MPa 550
640 to 990
Tensile Strength: Yield (Proof), MPa 390
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
320
Maximum Temperature: Mechanical, °C 410
1010
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1410 to 1420
1340
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43 to 44
14
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
8.2
Embodied Energy, MJ/kg 20 to 22
120
Embodied Water, L/kg 50 to 51
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 400
160 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
21 to 33
Strength to Weight: Bending, points 19
20 to 27
Thermal Diffusivity, mm2/s 12
3.5
Thermal Shock Resistance, points 16
16 to 25