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INDUSTRY
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Mining

Quench-and-tempered drill rods, core barrel tubes, hydraulic roof support cylinders, and structural tubes for underground and surface mining operations worldwide.
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MINING TUBE SOLUTIONS

Built for the harshest environments.

Global Seamless supplies AISI 4130 and 4140 quench-and-tempered drill rods to DCDMA standards, hydraulic cylinder tubes for powered roof supports and excavator equipment, and structural hollow sections for mining infrastructure. Every tube is engineered for the abrasion, impact, and fatigue loading that mining operations demand.
All mining tubes ship with documented heat treatment parameters, full mechanical property certification including Charpy impact values, and 100% MPI and UT inspection.
PRODUCTS FOR MINING

Drill rods to structural steel.

Mining Tubes

4130/4140 Q&T drill rods and core barrel tubes to DCDMA standards.
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Hydraulic Cylinder Tubes

Honed and SRB bore tubes for excavators, loaders, and roof supports.
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Mechanical & Structural

A500/A519 hollow sections for conveyors, frames, and support structures.
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Fluid Pipes

Dewatering, compressed air, and slurry piping for underground and surface operations.
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Carbon Steel Seamless

General-purpose seamless pipe for process and utility service on mine sites.
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Hot Finished Seamless

Heavy-wall HFS tubes for piling, casing, and structural applications.
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SEGMENTS WE SERVE

Exploration · extraction · processing.

Exploration Drilling

✓   AQ, BQ, NQ, HQ, PQ drill rods
✓   Core barrel tubes
✓   4130/4140 Q&T grades
✓   DCDMA dimensional standards
✓   Thread gauging on every rod

Underground Mining

✓   Powered roof support cylinders
✓   Ventilation ducting
✓   Ground support piling
✓   Dewatering piping
✓   Conveyor structural tubes

Surface Mining

✓   Excavator and loader cylinders
✓   Dump truck hydraulic tubes
✓   Crusher and screen structures
✓   Process plant piping
✓   Slurry pipeline
Q&T
Heat Treated
DCDMA
Standard Sizes
100%
MPI + UT Tested
4140
Premium Drill Grade
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
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GET A QUOTE

Sourcing drill rods or mining tubes?

Send us your DCDMA size, grade, Q&T requirements, and quantity. We respond with a technical and commercial proposal within 24 hours.
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