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TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm

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    Buy cheap TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm from wholesalers
     
    Buy cheap TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm from wholesalers
    • Buy cheap TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm from wholesalers
    • Buy cheap TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm from wholesalers
    • Buy cheap TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm from wholesalers
    • Buy cheap TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm from wholesalers

    TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm

    Ask Lasest Price
    Brand Name : DELTA
    Model Number : 201 304 316L 321 310S 314 347 2205 2507 904L.etc
    Certification : ISO
    Price : 3200 - 3500 USD/Ton
    Payment Terms : T/T, Western Union, L/C
    Supply Ability : 10 Ton per week
    Delivery Time : 5 - 12 days based on the quantity
    • Product Details
    • Company Profile

    TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm

    TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm


    Commodity
    304 316 321 Hollow Hexagonal Stainless Steel Pipe
    Grade
    Austenitic: 304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L, 904L
    Duplex steel: S31803,S32205,S32750,S32760
    Standard
    ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456,DIN 17457,DIN 17459, JIS G3459, JIS G3463, GOS T9941,EN 10216, BS3605,
    GB13296,etc.
    Technique
    Hot Rolled / Cold Drawn
    Type
    Seamless pipe
    Size
    S14*6-8 - S80*55-70mm
    Length
    custom any length as request
    Packing
    In bundles, Nylon bags, wooden cases or as required
    Delivery Time
    Ready stocks 3-7 days, customized 7-10 days for customized size
    MOQ
    1 Ton
    Export To
    Singapore, Canada, Indonesia, Korea, USA, UK, Thailand,Saudi Arabia, Vietnam,India, Peru, Ukraine ,Brazil,South Africa, etc.

    321 Stainless Steel Hexagonal Pipe – Technical Overview


    1. Introduction

    321 stainless steel hexagonal pipe is a hollow hexagonal bar made from titanium-stabilized austenitic stainless steel (321). The addition of titanium (Ti) enhances its resistance to intergranular corrosion, particularly in high-temperature environments (up to 900°C). It is widely used in aerospace, chemical processing, heat exchangers, and exhaust systems due to its excellent thermal stability and oxidation resistance.


    2. Specifications

    • Shape & Dimensions:

      • Hexagonal across flats (S): 6mm to 50mm

      • Wall thickness (T): 0.5mm to 5mm

      • Length: 1m to 6m (custom lengths available)

    • Surface Finish: Smooth, polished, or matte finish options.


    3. Standards Compliance

    • International Standards:

      • ASTM A312/A269 (Seamless & Welded Pipes)

      • ASTM A554 (Welded Mechanical Tubing)

      • EN 10296-2 (European Standard)

    • Chinese Standards:

      • GB/T 12770 (Welded Stainless Steel Pipes)

      • GB/T 14976 (Seamless Stainless Steel Pipes)


    4. Chemical Composition (%)

    ElementC≤Si≤Mn≤P≤S≤CrNiTiFe
    3210.080.752.000.0450.0317.0-19.09.0-12.0≥5×C%Balance

    Key Feature: Titanium (Ti) ≥ 5×C% prevents chromium carbide precipitation, improving high-temperature performance.


    5. Mechanical Properties

    PropertyTensile Strength (MPa)Yield Strength (MPa)Elongation (%)Hardness (HB)
    321≥520≥205≥40≤187

    Note: Retains strength at elevated temperatures (up to 900°C).


    6. Manufacturing Process

    1. Material Preparation: 321 stainless steel billets (with Ti stabilization).

    2. Forming:

      • Seamless Pipes: Hot extrusion or cold drawing.

      • Welded Pipes: Rolled into hexagonal shape and TIG welded.

    3. Heat Treatment: Solution annealing (920–1150°C) followed by rapid cooling to dissolve carbides.

    4. Surface Treatment: Pickling, passivation, or polishing for corrosion resistance.


    7. Key Features

    ✅ High-Temperature Resistance: Stable up to 900°C (avoids sensitization).
    ✅ Intergranular Corrosion Resistance: Titanium prevents chromium depletion.
    ✅ Oxidation Resistance: Forms a protective Cr₂O₃ layer in oxidizing atmospheres.
    ✅ Good Weldability: Suitable for welded structures.


    8. Packaging

    • Standard: Plastic end caps, bundled with steel straps, waterproof wrapping.

    • Special: Wooden crates for heavy-duty protection.


    9. Applications

    • Aerospace: Jet engine components, exhaust systems.

    • Chemical Industry: High-temperature pipelines, reactors.

    • Heat Exchangers: Boilers, condensers.

    • Automotive: Exhaust manifolds, catalytic converters.

    • Architecture: Decorative structures requiring heat resistance.


    Summary

    321 stainless steel hexagonal pipe is ideal for high-temperature and corrosive environments, offering superior thermal stability and mechanical strength. Its titanium stabilization ensures long-term performance in critical applications.

    Need customization or testing reports? Contact us for details!

    TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mmTP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mmTP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mmTP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm

    Quality TP321 Stainless Steel Hexagonal Hollow Tube 321 Stainless Steel Hex Pipe S14 - S75mm for sale
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