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    Zeron 100 Tubing, Super Duplex Instrument & Heat-Exchanger Tube (UNS S32760)

    Zeron 100 super duplex tubing (UNS S32760, ASTM A789) for instrument and heat-exchanger

    Zeron 100 tubing (UNS S32760 / Werkstoff 1.4501) is supplied by TorqBolt from qualified mills. We do not draw or weld tube ourselves, we source from NORSOK M-650 qualified mills and ship with EN 10204 type 3.1 or 3.2 certificates plus eddy-current test records. Tubing differs from pipe in tighter OD/ID tolerances and surface finish, typically used for instrument and hydraulic lines on offshore platforms, heat-exchanger bundles, and analyser tubing for sour-service applications.

    ASTM A789 seamless + A249 welded . Supplied by TorqBolt from qualified mills . Instrument and hydraulic tubing 1/8 to 2 inch OD . Heat-exchanger tube to buyer spec

    Standards Stack

    ASTM A789 (seamless and welded ferritic/austenitic stainless steel tubing for general service). ASTM A249 (welded austenitic stainless steel tubing for boiler, superheater, heat-exchanger, and condenser). ASTM A269 / A270 for instrument and sanitary tubing. EN 10216-5 for European procurement. NORSOK M-650 mill qualification + M-630 MDS 055 acceptance.

    Available OD & Wall

    FormOD rangeWallStandard
    Instrument tubing (seamless)1/8 to 1 inch OD0.028 to 0.083 inch wallASTM A789 / A269
    Hydraulic tubing (seamless)1/4 to 2 inch OD0.035 to 0.250 inch wallASTM A789
    Heat-exchanger tube (seamless)3/8 to 1-1/2 inch ODBWG 16 to BWG 12ASTM A789 or A269
    Welded HX tube5/8 to 1-1/4 inch ODBWG 18 to BWG 14ASTM A249

    Typical Applications

    • FPSO instrument-air and analyser tubing
    • Hydraulic control lines on subsea manifolds
    • Heat-exchanger tube bundles (process intercoolers, lube-oil coolers)
    • Condenser tubing for FGD scrubber circuits
    • Desalination heat-recovery tube bundles
    • Chemical process analyser sampling lines
    • Pneumatic control tubing in sour-service compressor stations

    What Ships With Every Tubing Order

    • Heat number traceable, melt to tube piece
    • Chemistry, full elemental analysis vs A789 / A249 ranges
    • Tensile + flare or flange test per tube spec
    • Hydrostatic test or eddy-current test per spec
    • Hardness, NACE MR0175 cap ≤ 28 HRC
    • Ferrite content, ASTM E562 metallographic point count 35-55%
    • Sigma-phase, ASTM A923 Method C if specified
    • PMI 100% with calibrated XRF
    • Visual + dimensional 100% per ASTM A1016 / A450
    • EN 10204 type 3.1 (mill QC) or 3.2 (TUV / BV / DNV / Lloyd's / ABS witnessed)

    Request a Tubing Quote

    Send the spec (OD + wall + length + seamless or welded + surface finish + project standard + supplementary requirements + quantity + destination port) to info@torqbolt.com or +91-22-66157017 / WhatsApp. Cross-reference: Zeron 100 pipe, Zeron 100 welding wire, Zeron 100 bar stock.

    Specifications
    Certifications
    • ISO 9001 - 2015 Certified
    • PED 2014/68/EC
    • NACE MR0175/ISO 15156-2
    • NORSOK M-650 MDS 055
    • DFAR
    • MERKBLATT AD 2000 W2/W7/W10
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