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ASTM A182 Grade F122 vs. AISI 204 Stainless Steel

Both ASTM A182 grade F122 and AISI 204 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 204 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
210 to 330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
23 to 39
Fatigue Strength, MPa 320
320 to 720
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 450
500 to 700
Tensile Strength: Ultimate (UTS), MPa 710
730 to 1100
Tensile Strength: Yield (Proof), MPa 450
380 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 600
850
Melting Completion (Liquidus), °C 1490
1410
Melting Onset (Solidus), °C 1440
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.4
Embodied Energy, MJ/kg 44
35
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 17
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
240 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 520
360 to 2940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
27 to 40
Strength to Weight: Bending, points 22
24 to 31
Thermal Diffusivity, mm2/s 6.4
4.1
Thermal Shock Resistance, points 19
16 to 24

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 0.030
Chromium (Cr), % 10 to 11.5
15 to 17
Copper (Cu), % 0.3 to 1.7
0
Iron (Fe), % 81.3 to 87.7
69.6 to 76.4
Manganese (Mn), % 0 to 0.7
7.0 to 9.0
Molybdenum (Mo), % 0.25 to 0.6
0
Nickel (Ni), % 0 to 0.5
1.5 to 3.0
Niobium (Nb), % 0.040 to 0.1
0
Nitrogen (N), % 0.040 to 0.1
0.15 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
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