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High quality ASTM A335 P91 Seamless Alloy Seel Pipe Manufacturer in China

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  • High quality ASTM A335 P91 Seamless Alloy Seel Pipe Manufacturer in China
  • High quality ASTM A335 P91 Seamless Alloy Seel Pipe Manufacturer in China
  • High quality ASTM A335 P91 Seamless Alloy Seel Pipe Manufacturer in China

Short Description:

ASTM A335 standard high Temperature boiler pipe seamless alloy pipe with IBR certifiaction

Seamless alloy pipe for boiler ,heat exchanger etc industry

 


  • Payment: 30% deposit, 70% L/C or B/L copy or 100% L/C at sight
  • Min.Order Quantity: 1 PC
  • Supply Ability: Annual 20000 Tons Inventory of Steel Pipe
  • Lead Time: 7-14 days if in stock, 30-45 days to produce
  • Packing: Black Vanishing, bevel and cap for every single pipe; OD below 219mm need to pack in bundle, and each bundle no exceed 2 tons.
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    Product Detail

    Product Tags

    Overview

    Our development depends on the advanced equipment ,excellent talents and continuously strengthened technology forces for our high quality industry steel pipe, We are going to continually strive to increase our company and supply the ideal quality products with aggressive price ranges. Any inquiry or comment is hugely appreciated. Remember to get hold of us freely. Our company is working by the operation principle of "integrity-based, cooperation created, people oriented, win-win cooperation". We hope we can have a friendly relationship with businessman from all over the world

    P91 not only has high oxidation resistance and high temperature steam corrosion resistance, but also has good impact toughness and high and stable long-lasting plasticity and thermal strength. When the service temperature is lower than 620℃, its allowable stress is higher than that of austenitic stainless steel. Above 550℃, the recommended design allowable stress is about twice that of T9 and 2.25Cr-1Mo steel. It can be used as high temperature superheater and reheater steel pipe for subcritical and supercritical boiler wall temperature ≤625℃, high temperature header and steam pipe wall temperature ≤600℃, as well as nuclear power heat exchanger and furnace tube of petroleum cracking unit.

    Application

    It is mainly used to make high-quality alloy steel boiler pipe , heat exchanged pipe, high pressure steam pipe for petroleum and chemical industry

    Main Grade

    Grade of high-quality alloy pipe :P1,P2,P5,P9,P11,P22,P91,P92 etc

     

    Chemical Component

    Grade UN C≤ Mn P≤ S≤ Si≤ Cr Mo
    Sequiv.
    P1 K11522 0.10~0.20 0.30~0.80 0.025 0.025 0.10~0.50 – 0.44~0.65
    P2 K11547 0.10~0.20 0.30~0.61 0.025 0.025 0.10~0.30 0.50~0.81 0.44~0.65
    P5 K41545 0.15 0.30~0.60 0.025 0.025 0.5 4.00~6.00 0.44~0.65
    P5b K51545 0.15 0.30~0.60 0.025 0.025 1.00~2.00 4.00~6.00 0.44~0.65
    P5c K41245 0.12 0.30~0.60 0.025 0.025 0.5 4.00~6.00 0.44~0.65
    P9 S50400 0.15 0.30~0.60 0.025 0.025 0.50~1.00 8.00~10.00 0.44~0.65
    P11 K11597 0.05~0.15 0.30~0.61 0.025 0.025 0.50~1.00 1.00~1.50 0.44~0.65
    P12 K11562 0.05~0.15 0.30~0.60 0.025 0.025 0.5 0.80~1.25 0.44~0.65
    P15 K11578 0.05~0.15 0.30~0.60 0.025 0.025 1.15~1.65 – 0.44~0.65
    P21 K31545 0.05~0.15 0.30~0.60 0.025 0.025 0.5 2.65~3.35 0.80~1.60
    P22 K21590 0.05~0.15 0.30~0.60 0.025 0.025 0.5 1.90~2.60 0.87~1.13
    P91 K91560 0.08~0.12 0.30~0.60 0.02 0.01 0.20~0.50 8.00~9.50 0.85~1.05
    P92 K92460 0.07~0.13 0.30~0.60 0.02 0.01 0.5 8.50~9.50 0.30~0.60

    A New designation established in accordance with Practice E 527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS). B Grade P 5c shall have a titanium content of not less than 4 times the carbon content and not more than 0.70 %; or a columbium content of 8 to 10 times the carbon content.

    Mechanical Property

    Mechanical properties  P1,P2  P12  P23  P91  P92,P11  P122
     Tensile strength  380  415  510  585  620  620
     Yield strength  205  220  400  415  440  400

    Heat Treatment

    Grade Heat Treatment Type Normalizing Temperature Range F [C] Subcritical Annealing or Tempering
    P5, P9, P11, and P22 Temperature Range F [C]
    A335 P5 (b,c) Full or Isothermal Anneal
    Normalize and Temper ***** 1250 [675]
    Subcritical Anneal (P5c only) ***** 1325 – 1375 [715 - 745]
    A335 P9 Full or Isothermal Anneal
    Normalize and Temper ***** 1250 [675]
    A335 P11 Full or Isothermal Anneal
    Normalize and Temper ***** 1200 [650]
    A335 P22 Full or Isothermal Anneal
    Normalize and Temper ***** 1250 [675]
    A335 P91 Normalize and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
    Quench and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]

    Test Requirement

    In addition to ensuring chemical composition and mechanical properties, hydrostatic tests are performed one by one,  Nondestructive Examination ,Product Analysis , Metal Structure and Etching Tests ,Flattening test etc.

    Supply Ability

    Supply Ability: 2000 Tons Per Month Per Grade of ASTM A335  Alloy Steel Pipe

    Packaging

    In Bundles And In Strong Wooden Box

    Delivery

    7-14 days if in stock, 30-45 days to produce

    Payment

    30% depsoit, 70% L/C or B/L copy   or  100% L/C at sight

    Product Detail

    Boiler Tube


    GB/T5310-2017


    ASME SA-106/SA-106M-2015

    carbon steel pipe


    ASTMA210(A210M)-2012


    ASME SA-213/SA-213M


    ASTM A335/A335M-2018

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