SEAMLESS TUBE & PIPE · MANSFIELD, LOUISIANA

Engineered seamless pipes & tubes. Built for pressure.

Domestic seamless tube and pipe supply from Mansfield, Louisiana, with shorter lead times and smaller releases. Hot-finished and cold-drawn carbon, alloy and stainless steel to ASTM and ASME specifications.

154K SHORT TONS
Annual production capacity (140,000 MT)
36+ YRS
Manufacturing expertise
PRODUCT CATALOG · 11 CATEGORIES

Seamless pipes and tubes for every application.

Carbon steel seamless boiler tubing
A179 · A192 · A335
Heat exchanger tubes
A179 · A213
Seamless hydraulic tubes
DIN 2391 · EN 10305
ASTM A500 mechanical and structural seamless pipes
ASTM A500 · A519
Seamless mining tubes
EN 10216-4
Carbon steel seamless pipes
A106 · A53
Alloy steel seamless pipes
A335 · T11/T22/T91
Stainless steel 304 seamless boiler pipes and tubes
304 · 316 · 321
Hot finished seamless tubes and pipes
HFS · MPM
Cold drawn seamless (CDS) steel tube
CDS · Pilger
Cold drawn stainless steel seamless tubes
Precision reduction
OUR MILLS · USA & INDIA

Domestic production in Louisiana, backed by our Kolkata mill.

Global Seamless Mansfield manufacturing plant in the USA
USA · 88K SHORT TONS (80K MT)
300,000+ sq ft at 816 Jenkins St. Hot-finished and cold-drawn seamless production with Accu rolling mill. Domestic supply for North American markets, with shorter lead times and smaller releases.
Global Seamless manufacturing plant in Kolkata, India
INDIA · 66K SHORT TONS (60K MT)
HFS + CDS + Stainless. Integrated manufacturing with in-house heat treatment, bright annealing and NABL laboratory.
INDUSTRIES SERVED

Built for the world’s most demanding environments.

Browse our seamless pipe and tube portfolio by operating environment and end-use application.
FULLY INTEGRATED MANUFACTURING

From billet to finished tube with complete traceability.

Global Seamless integrates hot finishing and cold drawing under one manufacturing system. Every stage, from raw-material control through heat treatment, dimensional inspection, NDT, and final dispatch, is engineered for repeatability and documented quality.

Built for demanding specifications.

  • Hot Finished Seamless
  • Cold Drawn Seamless
  • Multi-stage inspection
  • Hydrostatic, Eddy Current & Ultrasonic NDT
  • Custom grades, dimensions and lengths
TECHNICAL INSIGHTS · ENGINEERING RESOURCES

Practical knowledge for better pipe and tube decisions.

Seamless steel pipes
COLD PILGERED TUBES
Extreme OD/WT ratios for critical apps.
Seamless steel pipes
COLD PILGERED TUBES
Reciprocating die process for precision.
Seamless steel pipes
COLD PILGERED TUBES
When to specify pilger-milled tubes.
Hot finished seamless steel tubes
HOT FINISHED SEAMLESS
Normalizing and stress relieving for HFS.
Hot finished seamless steel tubes
HOT FINISHED SEAMLESS
Step-by-step HFS manufacturing process.
Hot finished seamless tubes and pipes
HOT FINISHED SEAMLESS
When to specify HFS over CDS.

Have a specification or RFQ ready?

Send the grade, standard, OD WT length and required quantity. Our technical sales team will respond with the right manufacturing route.