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ASTM A572 Steel vs. Nickel 690

ASTM A572 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 A572 steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 190
90
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 25
3.4 to 34
Fatigue Strength, MPa 240 to 340
180 to 300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 300 to 380
420 to 570
Tensile Strength: Ultimate (UTS), MPa 470 to 620
640 to 990
Tensile Strength: Yield (Proof), MPa 330 to 510
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.6
8.2
Embodied Energy, MJ/kg 22
120
Embodied Water, L/kg 47
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 690
160 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 22
21 to 33
Strength to Weight: Bending, points 17 to 21
20 to 27
Thermal Diffusivity, mm2/s 14
3.5
Thermal Shock Resistance, points 14 to 18
16 to 25