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ASTM A355 P9 11CR SERRATED FIN TUBE

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ASTM A355 P9 11CR SERRATED FIN TUBE

Brand Name : YUHONG

Model Number : ASTM A355 P9

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015

Place of Origin : China

MOQ : 500KGS

Price : NEGOTIABLE

Payment Terms : L/C, T/T

Supply Ability : According To Client's Request

Delivery Time : 10-90 Days

Packaging Details : Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Application : Heat Exchangers, Condensers, Evaporators, Boilers

Fin Height : 0.5mm-20mm

Fin Pitch : 2.5mm-20mm

Fin Thickness : 0.08mm-1.5mm

Fin Type : Louver, Wavy, Plain, Serrated, Extruded

Material : Alloy Steel

Tube Diameter : 6mm-219mm

Tube Length : 50mm-6000mm

Tube Material : Carbon Steel, Stainless Steel, Copper, Aluminum

Tube Wall Thickness : 0.5mm-20mm

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ASTM A355 P9 11CR SERRATED FIN TUBE

ASTM A355 is a standard specification for seamless ferritic alloy-steel pipe for high-temperature service. P9 refers to the grade of steel used in the pipe, which is a low alloy steel with chromium and molybdenum content.

11CR refers to the 11% chromium content in the steel, which provides enhanced corrosion resistance and high-temperature strength.

Serrated fin tube refers to a type of heat exchanger tube that has fins on the outer surface. These fins increase the surface area of the tube, allowing for more efficient heat transfer between the fluid inside the tube and the surrounding environment. The serrated design of the fins helps to improve heat transfer even further.

 

Heat Treatement Requirement

  P5, P9, P11, and P22      
Grade Heat Treatment Type Normalizing Temperature Range F [C] Subcritical Annealing  
      or Tempering  
      Temperature Range F  
      [C]  
P5 (b,c) Full or isothermal Anneal    
  Normalize and Temper ***** 1250 [675]
  Subcritical Anneal (P5c only) ***** 1325 - 1375 [715 - 745]
P9 Full or isothermal Anneal    
  Normalize and Temper ***** 1250 [675]
P11 Full or isothermal Anneal    
  Normalize and Temper ***** 1200 [650]
P22 Full or isothermal Anneal    
  Normalize and Temper ***** 1250 [675]
P91 Normalize and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
  Quench and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]

 

 

 

Chemical Requirements

    Grade P-5 P-9 P-11 P-22
Element UNS Designation K41545 S50400 K11597 K21590
  Carbon 0.15 max 0.15 max 0.05 - 0.15 0.05 - 0.15
  Manganese 0.30 - 0.60 0.30 - 0.60 0.30 - 0.60 0.30 - 0.60
  Phosphorous, max 0.025 0.025 0.025 0.025
  Sulfur, max 0.025 0.025 0.025 0.025
  Silicon 0.50 max 0.25 - 1.00 0.50 - 1.00 0.50 max
  Chromium 4.00 - 6.00 8.00 - 10.00 1.00 - 1.50 1.90 - 2.60
  Molybdenum 0.45 -0.65 0.90 - 1.10 0.44 - 0.65 0.87 - 1.13

 

 

APPLICATION OF ASTM A355 P9 11CR SERRATED FIN TUBE

 

 

ASTM A355 is a standard specification for seamless ferritic alloy-steel pipe for high-temperature service. P9 refers to the grade of steel used in the pipe, which is a low alloy steel with chromium and molybdenum content.

11CR refers to the 11% chromium content in the steel, which provides enhanced corrosion resistance and high-temperature strength.

Serrated fin tube refers to a type of heat exchanger tube that has fins on the outer surface. These fins increase the surface area of the tube, allowing for more efficient heat transfer between the fluid inside the tube and the surrounding environment. The serrated design of the fins helps to improve heat transfer even further.

 

 

 

 

ASTM A355 P9 11CR SERRATED FIN TUBE

 

ASTM A355 P9 11CR SERRATED FIN TUBE


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