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ASTM A356 Grade 8 vs. ASTM A182 Grade F22V

Both ASTM A356 grade 8 and ASTM A182 grade F22V are iron alloys. They have a very high 98% of their average alloy composition in common. 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 A356 grade 8 and the bottom bar is ASTM A182 grade F22V.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
21
Fatigue Strength, MPa 270
320
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
50
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 630
670
Tensile Strength: Yield (Proof), MPa 390
460

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 440
460
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 38
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
4.2
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.0
2.5
Embodied Energy, MJ/kg 26
35
Embodied Water, L/kg 55
61

Common Calculations

PREN (Pitting Resistance) 4.7
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 390
570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 18
19

Alloy Composition

Boron (B), % 0
0 to 0.0020
Calcium (Ca), % 0
0 to 0.015
Carbon (C), % 0 to 0.2
0.11 to 0.15
Chromium (Cr), % 1.0 to 1.5
2.0 to 2.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 95.4 to 97.4
94.6 to 96.4
Manganese (Mn), % 0.5 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0.9 to 1.2
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0.2 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0.050 to 0.15
0.25 to 0.35