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EN 1.8550 Steel vs. ASTM A182 Grade F5a

Both EN 1.8550 steel and ASTM A182 grade F5a are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 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 EN 1.8550 steel and the bottom bar is ASTM A182 grade F5a.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
25
Fatigue Strength, MPa 470
380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 600
450
Tensile Strength: Ultimate (UTS), MPa 1000
710
Tensile Strength: Yield (Proof), MPa 760
520

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 440
510
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 40
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
4.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 23
24
Embodied Water, L/kg 67
69

Common Calculations

PREN (Pitting Resistance) 2.3
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
700
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
25
Strength to Weight: Bending, points 29
23
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 29
20

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0 to 0.25
Chromium (Cr), % 1.5 to 1.8
4.0 to 6.0
Iron (Fe), % 94.4 to 96.3
91.4 to 95.6
Manganese (Mn), % 0.4 to 0.7
0 to 0.6
Molybdenum (Mo), % 0.15 to 0.25
0.44 to 0.65
Nickel (Ni), % 0.85 to 1.2
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.030