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AISI 418 Stainless Steel vs. ASTM A182 Grade F22V

Both AISI 418 stainless steel and ASTM A182 grade F22V are iron alloys. They have 84% 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 AISI 418 stainless steel and the bottom bar is ASTM A182 grade F22V.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
21
Fatigue Strength, MPa 520
320
Poisson's Ratio 0.28
0.29
Reduction in Area, % 50
50
Shear Modulus, GPa 77
74
Shear Strength, MPa 680
420
Tensile Strength: Ultimate (UTS), MPa 1100
670
Tensile Strength: Yield (Proof), MPa 850
460

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 770
460
Melting Completion (Liquidus), °C 1500
1470
Melting Onset (Solidus), °C 1460
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
4.2
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.5
Embodied Energy, MJ/kg 41
35
Embodied Water, L/kg 110
61

Common Calculations

PREN (Pitting Resistance) 19
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
24
Strength to Weight: Bending, points 29
22
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 40
19

Alloy Composition

Boron (B), % 0
0 to 0.0020
Calcium (Ca), % 0
0 to 0.015
Carbon (C), % 0.15 to 0.2
0.11 to 0.15
Chromium (Cr), % 12 to 14
2.0 to 2.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 78.5 to 83.6
94.6 to 96.4
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 1.8 to 2.2
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0
0.25 to 0.35