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ASTM A302 Alloy Steel vs. EN 2.4951 Nickel

ASTM A302 alloy steel belongs to the iron alloys classification, while EN 2.4951 nickel belongs to the nickel alloys.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is EN 2.4951 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 23
34
Fatigue Strength, MPa 250 to 280
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
76
Shear Strength, MPa 370 to 390
500
Tensile Strength: Ultimate (UTS), MPa 590 to 620
750
Tensile Strength: Yield (Proof), MPa 350 to 390
270

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 410
1150
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 39 to 51
12
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
60
Density, g/cm3 7.8 to 7.9
8.5
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
9.3
Embodied Energy, MJ/kg 20 to 21
130
Embodied Water, L/kg 48 to 50
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21 to 22
25
Strength to Weight: Bending, points 20 to 21
22
Thermal Diffusivity, mm2/s 10 to 14
3.1
Thermal Shock Resistance, points 17 to 18
23