Complete Solutions for Specialized Drilling Environments

TSC Drill Pipe provides a portfolio of specialized drill pipe grades engineered to perform in wells that push equipment the hardest, including controlled-yield programs and critical sour service operations. Each grade is built on disciplined metallurgy, controlled heat‑treat processes, and rigorous quality standards to support safe, efficient, and repeatable drilling performance.

NS™‑1 Enhanced Toughness Drill Pipe

Designed for drilling applications that specify high impact toughness. Built for wells where shock loads, vibration, and hard transitions demand tougher steel.

  • Manufactured to the requirements of Fearnley Procter Group NS™‑1 (independent of certification)
  • Proprietary grade alloy material delivers NS™‑1 Charpy performance: 59 ft‑lb (80 J) minimum average at –4°F (–20°C), ¾ size specimen
  • Weld zone meets 31 ft‑lb (42 J) minimum average at –4°F (–20°C) Charpy impact value
  • Produced with the standard TSC tool joints that exceed NS™‑1 requirements

TSC‑95CY™ & TSC‑105CY™ Controlled Yield Drill Pipe

For operators who want the reliability of standard API 5DP grade drill pipe with tighter control over strength and hardness.

  • Heat‑treated to cap yield strength at:
    • 110,000 psi (758 MPa) for TSC‑95CY™
    • 120,000 psi (827 MPa) for TSC‑105CY™
  • Manufactured from the same high‑quality proprietary materials used in TSC’s drill pipe; meets and exceeds API 5DP requirements
  • Meets all API 5DP requirements for grades X‑95 and G‑105
  • Not NACE SSC tested; not intended for sour service

TSC95SS™ & TSC105SS™ Sour Service Drill Pipe

A TSC proprietary sour‑service drill pipe built with a fully NACE‑tested tube and a purpose‑engineered, reduced‑yield tool joint for elevated performance in H₂S environments.

  • Pipe body produced from TSC proprietary material; each heat is SSC tested to 70% SMYS per NACE TM‑01‑77, Method A, Test Solution A
  • Controlled heat‑treat process limits hardness to ≤ 30 HRC and delivers ≥ 40 ft‑lb (54 J) Charpy impact at ambient temperature
  • Tool joints specially heat‑treated to 105,000 psi (724 MPa) minimum yield, ≤ 30 HRC, and ≥ 40 ft‑lb (54 J) Charpy impact
  • Tool joints are not NACE SSC tested and intentionally below API 5DP yield strength to support sour‑service performance

d. IRP, SS95, & SS105 Sour Service Drill Pipe

A fit‑for‑purpose solution for operators drilling in high‑risk sour zones where safety and consistency drive every decision.

  • Manufactured to meet IRP Volume 1‑2008, Critical Sour Drilling requirements
  • Pipe body and tool joints manufactured from a unique TSC proprietary chemistry designed for sour environments
  • Fully NACE SSC tested per IRP specification
  • Tool joints meet IRP minimum yield strength of 110,000 psi (758 MPa), intentionally below API 5DP yield strength to support sour‑service performance

    TSC specialty grades are built for the environments where toughness, consistency, and sour‑service integrity matter most. When the well gets challenging, your drill string shouldn’t be the question mark.

    Reach out to explore the full line of TSC specialty drill pipe engineered for real‑world performance.

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