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ASTM A182 Grade F12 Class 1 vs. EN 1.7779 Steel

Both ASTM A182 grade F12 class 1 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 1 and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
16
Fatigue Strength, MPa 180
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
500
Tensile Strength: Ultimate (UTS), MPa 470
810
Tensile Strength: Yield (Proof), MPa 250
660

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
470
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
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 8.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
4.0
Density, g/cm3 7.9
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 91
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
1150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 17
25
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 14
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.050 to 0.15
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), % 96.8 to 98.4
93.8 to 95.4
Manganese (Mn), % 0.3 to 0.6
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 0.045
0 to 0.025
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.045
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55