Alloy Seamless Pipe

Short Description:


  • Keywords(pipe type): Alloy Pipe, Alloy Tube, Alloy Steel Pipe, Alloy Steel Tube, High Pressure Steel Pipe, Boiler Steel Pipe, ASME SA335, P11, ASTM A335
  • Size: Outside Diameter: 1/8'' ~ 26'';Wall Thickness: SCH 30, 30, 40, 60, 80, 120, 140, 160, XS, XXS, STD; Length: Single Random, Double Random, Cut Length max to 23m
  • Standard & Grade: ASTM A333, A335 P5/P9/P11/P22/P91, DIN 17175, JIS G3458
  • Ends: Plain End, Beveled End, Thread End
  • Delivery: Within 30 days and Depends on your order quantity
  • Payment: TT, LC , OA , D/P
  • Packing: Bundled with Hemp Rope/In Bulk
  • Usage: Petroleum, Chemical Engineering, Electricity, Bolier
  • Description

    Specification

    Standard

    Painting & Coating

    Packing & Loading

    OD:6-720MM

    WT:0.5-120MM

    Length:3-16M

    Application:Petroleum, Chemical Engineering, Electricity, Boiler

    Standard:ASTM A335/A335M, ASTM A213/213M, DIN17175-79, JIS3467-88,GB5310-95

    Material:P5,T5,P11,P12,STFA22, P22, T91, T9,WB36

    Alloy pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is much better than  other Steel pipe , so the alloy pipe is widely used in petroleum, aerospace, chemical, electric power, boiler, military and other industries.

    Product SEAMLESS / ERW / SAW ALLOY STEEL PIPE
    Dimension 6 mm - 1080 mm
    Thickness 1mm - 135 mm
    Length 3 m - 12 m or according to the requirements of clients
    Standard ASTM GB DIN
    Steel grade A106/53/179/214/192/210 A/B/CST37.2/35.4/35.8/52/52.3/52.4/42/4510# 20# 45#P2, P12, P11, P22, P5, P9, P91T2, T11,T5,T9,T22, 4140, 12CrMo, 15CrMo, 12Cr2Mo, 1Cr5Mo, 2CrMo4, 1Cr9Mo, 10CrMo910, etc.
    Trade terms FOB/CIF/CFR
    Payment terms T/T, L/C
    Delivery port Tianjin, China
    Delivery time 10 or according to the real quantity of the tubes
    Surface treatment Black paintingVarnish painting3PEHot galvanizedor other coating according to your requirementsBare tube
    End of tubes Beveled, plain, thread, plastic caps
    Inspection Ultrasonic examination, eddy inspection, hydrosttic testing etc.
    Package Bundles, loosen or according to your requirements
    Certificate API 5L/5CT, ISO, PED etc.

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  • Chemical  Composition

    C, % Mn, % P, % S, % Si, % Cr, % Mo, %
    0.05-0.15 0.30-0.60 0.025 max 0.025 max 0.50-1.00 1.00-1.50 0.44-0.65

    Mechanical Properties

    Tensile Strength, MPa Yield Strength, MPa Elongation, %
    415 min 205 min 30 min

    Outside Diameter & Tolerance

    ASTM A450 Hot rolled Outside Diameter, mm Tolerance, mm
    OD101.6 +0.4/-0.8
    101.6OD190.5 +0.4/-1.2
    190.5OD228.6 +0.4/-1.6
    Cold Drawn Outside Diameter, mm Tolerance, mm
    OD25.4 ±0.10
    25.4OD38.1 ±0.15
    38.1OD50.8 ±0.20
    50.8OD63.5 ±0.25
    63.5OD76.2 ±0.30
    76.2OD101.6 ±0.38
    101.6OD190.5 +0.38/-0.64
    190.5OD228.6 +0.38/-1.14
    ASTM A530 & ASTM A335 NPS Outside Diameter, inch Tolerance, mm
    1/8OD1-1/2 ±0.40
    1-1/2OD4 ±0.79
    4OD8 +1.59/-0.79
    8OD12 +2.38/-0.79
    OD>12 ±1%

     

     

    Wall thickness & Tolerance

    ASTM A450 Hot rolled Outside Diameter, mm Tolerance, %
    OD101.6, WT2.4 +40/-0
    OD101.6, 2.4WT3.8 +35/-0
    OD101.6, 3.8WT4.6 +33/-0
    OD101.6, WT>4.6 +28/-0
    OD>101.6, 2.4WT3.8 +35/-0
    OD>101.6, 3.8WT4.6 +33/-0
    OD>101.6, WT>4.6 +28/-0
    Cold Drawn Outside Diameter, mm Tolerance, %
    OD38.1 +20/-0
    OD>38.1 +22/-0
    ASTM A530 NPS Outside Diameter, inch Tolerance, %
    1/8OD2-1/2 +20.0/-12.5
    3OD18, WT/OD5% +22.5/-12.5
    3OD18, WT/OD>5% +15.0/-12.5
    OD20, WT/OD5% +22.5/-12.5
    OD20, WT/OD>5% +15.0/-12.5

    ASTM A335–for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

    ASTM A519–for Seamless Carbon and Alloy Steel Mechanical Tubing

    ASTM A213–for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, and Heat-Exchange Tubes

    ASTM ASME (S)A-335/(S)A-335M Grade and Chemical Composition

    Grade UNS C Mn P S Si Cr Mo
    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 0.50 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 0.50 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 0.50 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 0.50 2.65~3.35 0.80~1.60
    P22 K21590 0.05~0.15 0.30~0.60 0.025 0.025 0.50 1.90~2.60 0.87~1.13
    P91 K91560 0.08~0.12 0.30~0.60 0.020 0.010 0.20~0.50 8.00~9.50 0.85~1.05
    P92 K92460 0.07~0.13 0.30~0.60 0.020 0.010 0.50 8.50~9.50 0.30~0.60

    Note: (S)A335 P91 other chemical composition are : V 0.18~0.25; N 0.030~0.070; Ni 0.40; Al 0.04 ; Nb 0.06~0.10

    (S)A335 P92 other chemical composition are : V 0.15~0.25; N 0.030~0.070; Ni 0.40; Al 0.04 ; Nb 0.04~0.09; W 1.5~2.00 ; B 0.001~0.006

    Alloy Seamless Pipe-01

    Black coating , oil/varnish ,FBE,2PE,3PE, galvanized etc Packaging Detail: Packing in bundles or for the client’s requirement

     

    Before Painting

    Preparation of painting specification involves understanding environmental factors, location of piping (indoor or outdoor), insulation requirements, operating and design temperatures. It may also involve local rules and regulations as well as availability of materials.

     

    Painting Workflow

    - Ensure all tests are performed on piping system before starting painting work.

    - Clean painting surface to remove oils, grease, dirt.

    - Ensure proper room temperature and humidity levels.

    - Use hand tools, machine tools, shot blasters etc to clean surface as per relevant standards and project requirements.

    - Apply primer within 4 hours of surface preparation.

    - Apply paint coats after previous coats have dried up, as per instructions of paint manufacturer.

     

    Components Requiring Painting

    • Un-insulated carbon steel pipes, fittings, valves, special items etc. require painting.
    • Carbon steel ducts, furnaces and stacks require painting.
    • All un-insulated equipments like columns, vessels, drums, heat exchangers, pumps, compressors, electrical panels, motors etc. require painting.
    • All structural componets like steel members, platforms, ladders,handrails etc. required painting.

     

    Types of Painting Methods

    • Painting by Brush

    Painting by Brush Painting by Brush
    • Painting by Air Spray Painting Machine

    Painting by Air Spray Painting Machine Painting by Air Spray Painting Machine Painting by Air Spray Painting Machine

     

    • Painting by Airless Spray Painting Machine

    Painting by Airless Spray Painting Machine Painting by Airless Spray Painting Machine Painting by Airless Spray Painting Machine

     

    Surfaces that should not be painted.

    Non-ferrous materials like Aluminium are not required to be painted. Also other surfaces like Valve Stems etc. Checkout this complete list of surfaces that should not be painted.

     

    Characteristics of Piping Paint Material
    Paint material used for painting pipes and equipments must adhere to certain requirements as per project specification .Check out these typical requirements for various types of primers and paints.

     

    Typical Piping Painting Systems

    Check out these combinations of typical piping painting systems which comprise of surface preparation, primer coats and top coats.

     

    Humidity Requirements During Painting

    Proper weather conditions surrounding the place of painting work is essential w.r.t. humidity levels and room temperature. Check out these humidity and temperature requirements.

     

    Qualification Criteria for Painting Contractor

    Painting contractor needs to posses these qualifications for good quality of painting work in time.

     

    Inspection and Testing Procedure

    Sound inspection and testing procedure must be in place to ensure good quality of painting work. Check out this article for complete information on inspection and testing procedure.

    Alloy Seamless Pipe-02