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ASTM A369 Grade FP12 vs. ASTM A182 Grade F12 Class 1

Both ASTM A369 grade FP12 and ASTM A182 grade F12 class 1 are iron alloys. Their average alloy composition is basically identical. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP12 and the bottom bar is ASTM A182 grade F12 class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
23
Fatigue Strength, MPa 170
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
300
Tensile Strength: Ultimate (UTS), MPa 470
470
Tensile Strength: Yield (Proof), MPa 250
250

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
430
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 21
21
Embodied Water, L/kg 52
52

Common Calculations

PREN (Pitting Resistance) 2.8
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
91
Resilience: Unit (Modulus of Resilience), kJ/m3 160
160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.050 to 0.15
Chromium (Cr), % 0.8 to 1.3
0.8 to 1.3
Iron (Fe), % 96.8 to 98.4
96.8 to 98.4
Manganese (Mn), % 0.3 to 0.61
0.3 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0.44 to 0.65
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.045