OCTG Pipe & Tubing 

Steel Alloys & Services (SAS) strives to offer high-quality steel products for a variety of industrial markets, such as oil line pipes for the oil & gas industry. 

As a premier OCTG pipe and tubing supplier, we ensure that our oil country tubular goods—the materials used primarily in the production and drilling of oil and gas—meet the highest standards. OCTG pipe is typically produced in accordance with API or associated standard specifications.

It may also be used as a collective term for several petroleum industry products utilized in both onshore and offshore environments, such as:

• Drill Pipe
• Steel Casing Pipe
• Tubing Pipe
• Couplings
• Connections
• Accessories.

We stock OCTG products for a variety of down hole tools in the following grades, connections, and conditions.

Outside Diameter Range: 1.315” (33.4 mm) to 20.000” (508 mm)

Manufacturing Process:

Seamless (SMLS): SMLS pipe process begins by heating a solid steel billet and then piercing it with a mandrel to shape it into a tube, it is then stretched or rolled into the desired diameter, length, and wall thickness.

Welded (ERW): ERW pipe is made by taking hot rolled steel coils and forming them into a cylinder followed by welding the edges together.

Connections: Plain end, API (STC/LTC/BTC), Premium Threaded/Coupled/Flush/Semi-Flush

Grades: H40, J55, N80, L80, T95, C95, P110, C110, Q125, 13cr80, 13cr85, S13cr-95, S13cr-110

OCTG pipes require dependable hardness to meet their standard requirements. Thus, regardless of the type of octg - tubing, pipe, or drill pipe - there is an established level of super hardness that must be achieved.

Dependable hardness is a standard requirement for all OCTG pipes. As a leading OCTG pipe and tubing supplier, we ensure that OCTG tubing, OCTG pipe, and OCTG drill pipe all have to meet a the specific requirement that is constantly focused on extreme hardness. Manganese and chromium are the primary alloys utilized to check cohesion and durability in order to achieve the requirement. Thus, regardless of the type of OCTG - tubing, pipe, or drill pipe - there is an established level of super hardness that must be achieved.

As a trusted oil country tubular goods supplier, we offer these advanced metallurgical solutions to ensure there is no longer any need to worry about sulfide stress cracking, making modern OCTG pipes stronger than ever before. 

• Precision Premium Threading: We bridge the gap between heavy tubular production and global field deployment through strategic partnerships with the world's leading premium threading providers. Get your plain end, API (STC/LTC/BTC), or custom flush/semi-flush premium connections processed smoothly under one single chain of custody.
• The Proactive "WIN" (Want It Now) Network: We maintain a robust inventory of critical API 5CT grades at our Houston facility, ensuring we stay ahead of your exploration timeline, minimizing NPT (Non-Productive Time) and keeping rigs operational.

We stock OCTG products for a variety of down hole tools in the following grades, connections, and conditions.

The manufacturing process of Oil Country Tubular Goods directly dictates how your casing and tubing will perform under extreme tension, burst pressure, and collapse environments. At Steel Alloys & Services, we offer both Seamless (SMLS) and Electric Resistance Welded (ERW) configurations, ensuring your well design is backed by the precise metallurgical properties it requires.

When your operations involve high-temperature, high-pressure (HTHP) reservoirs, deepwater drilling, or severe sour environments, seamless tubulars are the industry standard.

• The Process: Manufactured by piercing a solid cylindrical billet of heated alloy steel, this process eliminates a longitudinal welded seam entirely.
• The Advantage: SMLS casing and tubing offer maximum structural uniformity and isotropic mechanical properties. Without a weld zone, the risk of localized corrosion, seam failure, or sulfide stress cracking (SSC) is drastically reduced, giving your engineering team total reliability under extreme downhole loads.

For shallow to mid-depth wells and environments where strict dimensional tolerances and cost-efficiency are paramount, modern high-frequency ERW casing provides an exceptional solution.

• The Process: Formed cold from a continuous strip of high-grade steel coil and welded longitudinally using high-frequency electrical current without the addition of filler metal.
• The Advantage: Our ERW products undergo rigorous post-weld heat treatment (seam annealing) to normalize the grain structure across the weld zone, eliminating the "heat-affected zone" vulnerabilities of past generations. ERW tubulars provide exceptionally uniform wall thickness and concentricity, making them ideal for precise clearances.