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ASTM A182 Grade F122 vs. AISI 309 Stainless Steel

Both ASTM A182 grade F122 and AISI 309 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F122 and the bottom bar is AISI 309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
34 to 47
Fatigue Strength, MPa 320
250 to 280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
78
Shear Strength, MPa 450
420 to 470
Tensile Strength: Ultimate (UTS), MPa 710
600 to 710
Tensile Strength: Yield (Proof), MPa 450
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
980
Melting Completion (Liquidus), °C 1490
1450
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
16
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 3.0
3.6
Embodied Energy, MJ/kg 44
51
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 17
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 520
170 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
21 to 25
Strength to Weight: Bending, points 22
20 to 23
Thermal Diffusivity, mm2/s 6.4
4.3
Thermal Shock Resistance, points 19
14 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0.070 to 0.14
0 to 0.2
Chromium (Cr), % 10 to 11.5
22 to 24
Copper (Cu), % 0.3 to 1.7
0
Iron (Fe), % 81.3 to 87.7
58 to 66
Manganese (Mn), % 0 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.25 to 0.6
0
Nickel (Ni), % 0 to 0.5
12 to 15
Niobium (Nb), % 0.040 to 0.1
0
Nitrogen (N), % 0.040 to 0.1
0
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.5
0
Vanadium (V), % 0.15 to 0.3
0
Zirconium (Zr), % 0 to 0.010
0