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ASTM A266 Carbon Steel vs. Grade M30H Nickel

ASTM A266 carbon steel belongs to the iron alloys classification, while grade M30H nickel belongs to the nickel alloys. There are 29 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 A266 carbon steel and the bottom bar is grade M30H nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 21 to 26
11
Fatigue Strength, MPa 170 to 200
230
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
61
Tensile Strength: Ultimate (UTS), MPa 500 to 600
770
Tensile Strength: Yield (Proof), MPa 230 to 290
470

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1250
Melting Onset (Solidus), °C 1420
1200
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 51 to 52
22
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
50
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 1.4
7.7
Embodied Energy, MJ/kg 18 to 19
110
Embodied Water, L/kg 46 to 47
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
75
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
700
Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 18 to 21
25
Strength to Weight: Bending, points 18 to 20
22
Thermal Diffusivity, mm2/s 14
5.7
Thermal Shock Resistance, points 16 to 19
27