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ASTM A182 Grade F12 Class 1 vs. ASTM A182 Grade F22V

Both ASTM A182 grade F12 class 1 and ASTM A182 grade F22V are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is ASTM A182 grade F12 class 1 and the bottom bar is ASTM A182 grade F22V.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
21
Fatigue Strength, MPa 180
320
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
50
Shear Modulus, GPa 73
74
Shear Strength, MPa 300
420
Tensile Strength: Ultimate (UTS), MPa 470
670
Tensile Strength: Yield (Proof), MPa 250
460

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
460
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1420
1430
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
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
4.2
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.5
Embodied Energy, MJ/kg 21
35
Embodied Water, L/kg 52
61

Common Calculations

PREN (Pitting Resistance) 2.8
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 14
19

Alloy Composition

Boron (B), % 0
0 to 0.0020
Calcium (Ca), % 0
0 to 0.015
Carbon (C), % 0.050 to 0.15
0.11 to 0.15
Chromium (Cr), % 0.8 to 1.3
2.0 to 2.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 96.8 to 98.4
94.6 to 96.4
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.045
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35