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ASTM A302 Alloy Steel vs. EN 1.7767 Steel

Both ASTM A302 alloy steel and EN 1.7767 steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is EN 1.7767 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 23
20
Fatigue Strength, MPa 250 to 280
320 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 370 to 390
420 to 430
Tensile Strength: Ultimate (UTS), MPa 590 to 620
670 to 690
Tensile Strength: Yield (Proof), MPa 350 to 390
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
480
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39 to 51
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
4.5
Density, g/cm3 7.8 to 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
2.4
Embodied Energy, MJ/kg 20 to 21
33
Embodied Water, L/kg 48 to 50
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
570 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 22
24
Strength to Weight: Bending, points 20 to 21
22
Thermal Diffusivity, mm2/s 10 to 14
11
Thermal Shock Resistance, points 17 to 18
19 to 20