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  • ASTM A872 UNS J93550 Stainless Steel Pipe
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  • ASTM A872 UNS J93550 Stainless Steel Pipe


     
    Standard:ASTM A872/A872M
    Standard Specification for Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe for Corrosive Environments
     
     
    ASTM A872 UNS J93550 Steel Pipe covers centrifugally cast ferritic/austenitic steel pipe intended for general corrosive service.
    ASTM A872 UNS J93550 Steel Pipe are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
     
     
     
    ASTM A872 UNS J93550 Stainless Steel Pipe Quick Details
    Company Name: beite steel pipe
    Country/Region: China
    Product Name:ASTM A872 UNS J93550 Stainless Steel Pipe
    Manufacture:centrifugal casting process.
    Outside Diameter:34mm——219mm
    Wall thickness:5.4mm——21mm
    Length:6000mm、12000m or specified length as require
     
     
    Port of Shipment:Tianjin,China
    Payment:L/C or T/T
    Delivery: 7-15 days after payment
    Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden)
     
     

     
    Materials and Manufacture
    Manufacture:
    The pipes are made by the centrifugal casting process.
    Machining
    The pipes are machined on the inner surface and may be supplied either machined or unmachined in the outer surface. 
     

     
    Heat Treatment
    All pipes shall be furnished in the heat-treated condition as shown in Table 1.

    TABLE 1 Heat Treatment Requirements
     
    Grade Condition 
    Temperature,
    °F [°C]
    Quenching
    UNS J93550 1920–2100 [1050–1150] Water quench or rapid
    cooling by other means
     
     
    Chemical Composition of ASTM A872 UNS J93550 Stainless Steel Pipe
     
    Element Grade  
    UNS J93550
    C 0.030
    Mn 2.0
    P 0.040
    S 0.030
    Si 2.0
    Ni 5.00–8.00
    Cr 23.0–26.0
    Mo 2.00–4.00
    N 0.08–0.25
    Cu 1.00
    Co 0.50–1.50
     
     
    Mechanical Properties of ASTM A872 UNS J93550 Stainless Steel Pipe
     
    Requirement Grade
    UNS J93550
    Tensile strength, min, ksi [MPa] 90 [620]
    Yield strength, min, ksi [MPa] 65 [450]
    Elongation in 2 in. or 50 mm, min,% 20
    Hardness, max:  
    Brinell 297
    Rockwell C 31.5

     
     
    Quality
    The surface of the casting shall be examined visually and shall be free of cracks and hot tears. 

     
     
    Permissible Variations in Dimensions
    Thickness—The wall thickness shall not vary over that specified by more than 1 ⁄ 8 in. [3 mm]. There shall be no variation under the specified wall thickness.
     
     
     
     
    Packaging 
    Bundles (hexagonal),
    Wooden Boxes,
    Crates (steel/wooden)
    The tubing be packaged or bundled in such a manner as to prevent damage in ordinary handling and transportation and identified by a tag with the name of the manufacturer, purchase order number, specification number and grade, and size.




     

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