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ASTM A182 Grade F6b vs. ASTM A182 Grade F122

Both ASTM A182 grade F6b and ASTM A182 grade F122 are iron alloys. They have a very high 97% of their average alloy composition in common. There are 33 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 A182 grade F6b and the bottom bar is ASTM A182 grade F122.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
23
Fatigue Strength, MPa 440
320
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
45
Shear Modulus, GPa 76
76
Shear Strength, MPa 530
450
Tensile Strength: Ultimate (UTS), MPa 850
710
Tensile Strength: Yield (Proof), MPa 710
450

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 750
600
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1400
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
24
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
12
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.2
3.0
Embodied Energy, MJ/kg 30
44
Embodied Water, L/kg 100
100

Common Calculations

PREN (Pitting Resistance) 14
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 26
22
Thermal Diffusivity, mm2/s 6.7
6.4
Thermal Shock Resistance, points 31
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.15
0.070 to 0.14
Chromium (Cr), % 11.5 to 13.5
10 to 11.5
Copper (Cu), % 0 to 0.5
0.3 to 1.7
Iron (Fe), % 81.2 to 87.1
81.3 to 87.7
Manganese (Mn), % 0 to 1.0
0 to 0.7
Molybdenum (Mo), % 0.4 to 0.6
0.25 to 0.6
Nickel (Ni), % 1.0 to 2.0
0 to 0.5
Niobium (Nb), % 0
0.040 to 0.1
Nitrogen (N), % 0
0.040 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0
0.15 to 0.3
Zirconium (Zr), % 0
0 to 0.010