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EN 1.7231 Steel vs. ASTM A182 Grade F5a

Both EN 1.7231 steel and ASTM A182 grade F5a are iron alloys. They have a very high 95% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7231 steel and the bottom bar is ASTM A182 grade F5a.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 12
25
Fatigue Strength, MPa 360 to 500
380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 790 to 930
710
Tensile Strength: Yield (Proof), MPa 570 to 800
520

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
510
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
4.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 20
24
Embodied Water, L/kg 51
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 100
160
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 1700
700
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 33
25
Strength to Weight: Bending, points 24 to 27
23
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 23 to 27
20

Alloy Composition

Carbon (C), % 0.38 to 0.45
0 to 0.25
Chromium (Cr), % 0.8 to 1.2
4.0 to 6.0
Iron (Fe), % 96.4 to 98.1
91.4 to 95.6
Manganese (Mn), % 0.6 to 1.0
0 to 0.6
Molybdenum (Mo), % 0.15 to 0.3
0.44 to 0.65
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030