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