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ASTM B677 Super Austenitic Seamless Stainless Steel Tube TP904L For Gas Washing

Categories Seamless Stainless Steel Tube
Brand Name: SPEZILLA
Model Number: TP904L, UNS N08904, WNR 1.4539
Certification: ISO9001:2008, PED 97/23/EC
Place of Origin: CHINA
MOQ: Negotiation
Price: Negotiation
Payment Terms: T/T or L/C
Supply Ability: 1000 TONS / MONTH
Delivery Time: 10 DAYS
Packaging Details: BUNDLES BY FCL
Material No.: TP904L, UNS N08904, WNR 1.4539
Testing: 100% Eddy Current
Size: 6.35MM - 101.60MM X 0.89MM - 3.05MM
Specification: ASTM B677 / ASME B677
Surface: A+P
Approval: ISO9001:2008
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    ASTM B677 Super Austenitic Seamless Stainless Steel Tube TP904L For Gas Washing

    ASTM B677 Super Austenitic Seamless Stainless Steel Tube TP904L For Gas Washing


    904L is a high-alloy austenitic stainless steel with low carbon content. The grade is intended for use under severe corrosive conditions. It has been application proved over many years and was originally developed to resist corrosion in dilute sulfuric acid. It is standardized and approved for pressure vessel use in several countries. Structurally, 904L is fully austenitic and is less sensitive to precipitation ferrite and sigma phases than conventional austenitic grades with high molybdenum content. Characteristically, due to the combination of relatively high contents of chromium, nickel, molybdenum and copper 904L has good resistance to general corrosion, particularly in sulfuric and phosphoric conditions.


    Spezilla stocks alloy 904L seamless stainless steel pipe (UNS N08904) for use in applications that require moderate to high corrosion resistance. Alloy 904L seamless stainless steel pipe is a low carbon high alloy austenitic stainless steel, originally developed to resist corrosion in dilute sulfuric acid. Because of the combination of relatively high contents of chromium, nickel, molybdenum and copper, this grade has greatly improved resistance to strong reducing acids, particularly sulfuric acid. Alloy 904L tubing is also extremely resistant to chloride attack from both pitting/crevice corrosion and stress corrosion cracking. Alloy 904L tubing is non-magnetic in all conditions, possesses amazing toughness, and has good formability and weldability.


    Because of these properties, alloy 904L seamless stainless srteel pipe is found in many applications ranging from utility scrubber assemblies, acid and fertilizer production equipment, pulp and paper processing, seawater cooling facilities and many other uses. Alloy 904L seamless stainless steel pipe is often specifically used when sulfuric or phosphoric acids are involved because of its excellent resistance to corrosion from those acids. The paper industry, gas industry, pharmaceutical industry and chemical industries also use alloy 904L seamless stainless steel pipe for its resistance properties and good use up to 400-450 degrees C. Alloy 904L can be welded, machined, heat treated, annealed, hardened and cold worked for many purposes.


    Standards:


    ASTM B677, B366


    ASME SB677, SB366


    Features:


    1. Good resistance to pitting and crevice corrosion.


    2. Very good resistance to stress corrosion cracking.


    3. Good resistance to intergranular corrosion.


    4. Good formability and weldability.


    5. Maximum service temperatures of 450 deg.C. (824 deg.F).


    Tensile Requirements:


    Tensile Strength (KSI) 70


    Yield Strength (KSI) 25


    KSI can be converted to MPA (Megapascals) by multiplying by 6.895.


    Specifications:


    Specifications (ASTM/ASME) 904L Seamless Stainless Steel Pipe
    AlloyUNS DesignationMaterial
    Specification
    Tubing
    Specification
    Pipe
    Specification
    904LN08904A 240/SA-240A 249/SA-249A 312/SA-312
    A 269B677/SB677
    Chemical Composition:

    Chemical Composition (%) 904L Seamless Stainless Steel Pipe
    Alloy904L
    UNS DesignationN08904
    Carbon (C) max.0.020
    Manganese (Mn) max.2.00
    Phosphorus (P) max.0.045
    Sulfur (S) max.0.035
    Silicon (Si) max.1.00
    Chromium (Cr)19.0 - 23.0
    Nickel (Ni)23.0 - 28.0
    Molybdenum (Mo)4.0 - 5.0
    Nitrogen (N) max.0.10
    Copper (Cu)1.0 - 2.0
    Iron (Fe)Balance



    Mechnical Properties:

    Typical Physical & Mechanical Properties - Annealed Condition (Room Temperature)
    AlloyUNS DesignationMinimum Tensile Strength
    Minimum Yield
    Strength
    0.2% Offset
    Minimum Percent (%)
    Elongation in
    2 inches (50.8 mm)
    (psi)(MPa)(psi)(MPa)
    904LN0890471,00049031,00021535


    Applications:


    Production and transport of sulfuric acid


    Metal pickling in sulfuric acid


    Production and concentration of phosphoric acid


    Use in seawater, brackish water, condensers, heat exchangers and pipe work in general


    Paper and allied industries


    Gas washing


    Chemical and pharmaceutical industries


































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