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ASTM A182 Grade F12 Class 2 vs. EN 1.7779 Steel

Both ASTM A182 grade F12 class 2 and EN 1.7779 steel are iron alloys. They have a very high 97% 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 ASTM A182 grade F12 class 2 and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
16
Fatigue Strength, MPa 220
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
500
Tensile Strength: Ultimate (UTS), MPa 540
810
Tensile Strength: Yield (Proof), MPa 310
660

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
470
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 43
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 21
41
Embodied Water, L/kg 52
64

Common Calculations

PREN (Pitting Resistance) 2.8
5.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
29
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 16
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.1 to 0.2
0.17 to 0.23
Chromium (Cr), % 0.8 to 1.3
3.0 to 3.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 96.4 to 98.3
93.8 to 95.4
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.5
Molybdenum (Mo), % 0.44 to 0.65
0.5 to 0.6
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.1 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55