INDUSTRY
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Nuclear Power

Nuclear-grade seamless tubes for heat exchangers, steam generators, instrumentation, and balance-of-plant piping in nuclear power stations — manufactured to the stringent quality requirements of nuclear codes.
NUCLEAR-GRADE SEAMLESS TUBING

Precision and traceability at nuclear standards.

Global Seamless supplies seamless tubes for the balance-of-plant systems in nuclear power stations: steam generator tubes, condenser tubes, feedwater heater tubes, and process piping. Our cold-drawn and cold-pilgered tubes deliver the dimensional precision, surface quality, and metallurgical integrity that nuclear-grade service demands.
All nuclear-service tubes are manufactured under enhanced quality programs with 100% NDT, documented heat treatment, and full material traceability from billet to finished tube.
PRODUCTS FOR NUCLEAR

BOP tubing and piping.

TP304L, TP316L for steam generators, condensers, and reactor auxiliaries.
Precision condenser and feedwater heater tubes with enhanced inspection.
Ultra-precision pilgered tubes for instrumentation and critical applications.
A106 and A333 for BOP piping, cooling systems, and auxiliary circuits.
Chrome-moly piping for steam systems and high-temperature service.
CDS tubes for instrument lines, sampling systems, and control piping.
SEGMENTS WE SERVE

PHWR · PWR · balance of plant.

Steam Generators

✓   TP304L / TP316L tubes
✓   Bright-annealed finish
✓   Eddy current 100%
✓   Concentricity < 5%
✓   Enhanced quality program

Condensers & Coolers

✓   Titanium-clad and stainless options
✓   A179 carbon steel condensers
✓   Duplex for seawater cooling
✓   Feedwater heater tubes
✓   Tube-to-tubesheet precision

BOP Piping

✓   Main steam and feedwater piping
✓   Auxiliary cooling circuits
✓   Instrument and control tubing
✓   Emergency core cooling piping
✓   ASME Section III compliance
ASME
Section III Ready
100%
ECT + UT Tested
BA
Bright Annealed
Full
Billet Traceability
MANUFACTURING

Mansfield, Louisiana.

Global Seamless operates a US manufacturing facility in Mansfield, Louisiana — strategically located in a key energy hub serving the Gulf Coast refineries, midstream pipeline operators, and upstream drilling operations with reduced lead times and local inventory. The facility spans over 300,000 sq. ft. with 60,000 MT annual capacity.
✓   Hot finishing and cold drawn manufacturing in-house
✓   API 5CT casing and tubing from local stock
✓   API 5L line pipe with domestic MTCs
✓   Buy American / USMCA compliant supply
✓   Accu rolling mill, bright annealing, and finishing
GET A QUOTE

Sourcing tubes for a nuclear project?

Send us your nuclear tube specification and quality program requirements. We respond with a technical and commercial proposal within 24 hours.