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Industeel UREA 25.22.2 Plants

Category Metal , Ferrous Metal , Austenitic , Stainless Steel , T 300 Series Stainless Steel
Manufacturer Groupe Arcelor
Trade Name UREA
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Industeel UREA 25.22.2 Plants.pdf
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Material Notes:
Description: CLI UREA 25.22.2 chemical composition has been optimized for specific uses in Urea plants. It is a 310L modified austenitic stainless steel with low carbon, low silicon and high nitrogen additions in order to stabilize and strengthen the austenitic phase. The alloy is designed to obtain a fully austenitic stainless steel free of intermetallic phases as intergranular carbide precipitations which affects the corrosion resistance properties of the alloy in urea containing solutions. The ferrite level is kept under 0.5% in the solution annealing and water quenched conditions. The alloy is particularly designed for improved corrosion resistance properties in urea carbonate environments including strippers. The grade is also well designed for resistance in wet corrosive conditions due to its high contents of chromium, molybdenum and nitrogen (PREN = 33)Information provided by manufacturer.
Physical Properties Metric English Comments
Density 7.90 g/cc
0.285 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 550 MPa
79800 psi
Typical after Solution Annealing
Tensile Strength, Yield 260 MPa

@Strain 0.200 %
37700 psi

@Strain 0.200 %
Typical after Solution Annealing
290 MPa

@Strain 1.00 %
42100 psi

@Strain 1.00 %
Typical after Solution Annealing
Elongation at Break 40 %
40 %
Typical
Modulus of Elasticity 200 GPa
29000 ksi
Poissons Ratio 0.333
0.333
Calculated
Shear Modulus 75.0 GPa

@Temperature 20.0 °C
10900 ksi

@Temperature 68.0 °F
Charpy Impact >= 120 J
>= 88.5 ft-lb
Thermal Properties Metric English Comments
CTE, linear 16.0 µm/m-°C

@Temperature 20.0 - 100 °C
8.89 µin/in-°F

@Temperature 68.0 - 212 °F
16.5 µm/m-°C

@Temperature 20.0 - 300 °C
9.17 µin/in-°F

@Temperature 68.0 - 572 °F
17.5 µm/m-°C

@Temperature 20.0 - 500 °C
9.72 µin/in-°F

@Temperature 68.0 - 932 °F
Specific Heat Capacity 0.500 J/g-°C

@Temperature 20.0 °C
0.120 BTU/lb-°F

@Temperature 68.0 °F
Thermal Conductivity 14.0 W/m-K

@Temperature 20.0 °C
97.2 BTU-in/hr-ft²-°F

@Temperature 68.0 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.020 %
<= 0.020 %
Chromium, Cr 25 %
25 %
Iron, Fe 48.36 - 50.78 %
48.36 - 50.78 %
As remainder
Manganese, Mn <= 2.0 %
<= 2.0 %
Molybdenum, Mo 2.1 %
2.1 %
Nickel, Ni 22 %
22 %
Nitrogen, N 0.12 %
0.12 %
Silicon, Si <= 0.40 %
<= 0.40 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000950 ohm-cm

@Temperature 20.0 °C
0.0000950 ohm-cm

@Temperature 68.0 °F
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