Oil, Gas & Pipeline Steel & Pipe Solutions | API 5L & API 5CT

Steel & Pipe Supply for Oil, Gas & Pipeline Projects

Casing, tubing, drill pipe, line pipe, pressure vessel plate and corrosion-resistant alloys—supplied to match demanding oil and gas project requirements.

Application Environments

Our steel and pipe products support upstream, midstream and downstream oil and gas applications, including onshore and offshore wells, casing and tubing strings, drilling systems, gathering pipelines, long-distance transmission pipelines, refinery pressure equipment, station process piping, low-temperature natural gas service, and highly corrosive well conditions. They are suitable for oilfields, offshore platforms, LNG terminals, refineries and cross-regional pipeline projects where pressure resistance, low-temperature performance, corrosion resistance and material reliability are critical.

Challenge Vs. How We Solve It

Pain Points

Oil and gas projects often require API, ASME and NACE-related specifications. Conventional commercial steel may not meet the requirements of high-pressure, low-temperature or sour H₂S service, making material compliance a major sourcing challenge.

How We Solve It

Match products to the required oil and gas standards and service conditions, from API 5CT casing and tubing and API 5DP drill pipe to API 5L line pipe, ASME pressure vessel plate and corrosion-resistant stainless or nickel alloy pipe.

Pain Points

A single project may require casing, tubing, drill pipe, seamless pipe, ERW, SSAW and LSAW line pipe, pressure vessel plate and corrosion-resistant alloy pipe in multiple sizes and delivery batches.

How We Solve It

Consolidate multiple oil and gas steel categories into one sourcing program, helping buyers coordinate different specifications, dimensions, grades and delivery requirements across the same project.

Pain Points

Material requirements vary significantly between sour H₂S wells, chloride-rich media and seawater environments. Incorrect material selection can increase the risk of pitting, stress cracking and pipeline failure.

How We Solve It

Provide material options for different corrosive conditions, including sour-service casing grades, 316L stainless steel, 2205 duplex stainless steel, Alloy 825 and Inconel 625 for chloride, H₂S and other highly corrosive applications.

Pain Points

Oil and gas procurement often involves strict requirements for third-party inspection, material certificates, NDT reports and project documentation. Missing or incomplete records can delay acceptance and commissioning.

How We Solve It

Coordinate product inspection and documentation requirements with the ordered material specification, including the applicable NDT requirements defined for casing, drill pipe, seamless pipe and welded line pipe.

Pain Points

Long-distance pipeline and well construction projects often have tight schedules while requiring custom wall thicknesses, special grades, fixed lengths and end-thread machining.

How We Solve It

Support project-specific dimensions and processing requirements such as R2/R3 casing lengths, BTC/LTC or special thread machining, beveling, fixed-length cutting and different wall thicknesses for pipeline and pressure-service applications.

Recommended Products For Oil, Gas & Pipeline

Steel and pipe products matched to drilling, well completion, gathering, transmission, refining and corrosion-resistant oil and gas applications.

API Oilfield Casing & Tubing

API casing and tubing for oil and gas well support and fluid production, available in multiple casing grades and sour-service material options for demanding well conditions.

Common Dimensions

Tubing:

OD: 2-3/8″–4-1/2″ (60.3–114.3 mm)

Wall Thickness: 3.18–7.82 mm

Standard Length: R2 (7.32–9.14 m), R3 (11.58–13.72 m)

Casing:

OD: 4-1/2″–20″ (114.3–508 mm)

Wall Thickness: 6.05–16.13 mm

Length: R2 / R3 fixed lengths

End Processing: BTC, LTC and VAM special threads

Surface & Performance:Precision-finished inner and outer surfaces; thread phosphating or copper-plated lubrication. Full-length ultrasonic testing of the pipe body. Designed for internal pressure resistance, collapse resistance and tensile performance. Sour-service grades can meet NACE MR0175 requirements for resistance to hydrogen sulfide stress corrosion.

API Drill Pipe & Drill Collar

High-strength drilling pipe for torque transmission and drilling operations, designed for deep-well and directional drilling applications.

Common Dimensions

OD: 2-3/8″–6-5/8″ (60.3–168.3 mm)

Wall Thickness: 5.49–12.7 mm

Standard Length: R2 / R3

End Configuration: Upset ends with tool joints

Surface & Performance:Pipe body and tool joints are formed by friction welding, with full-size inspection. Provides high torsional strength and fatigue resistance for deep-well and directional drilling applications.

Carbon Seamless Steel Pipe

Seamless carbon steel pipe for gathering systems, station process piping and high-pressure oil and gas service, available in multiple API 5L grades.

Common Dimensions

OD: 21.3–610 mm

Wall Thickness: 2.77–40 mm

Standard Length: 6 m / 12 m

Processing Options: Beveling and end chamfering available

Surface & Performance: Hot-rolled or cold-drawn construction, with ultrasonic and eddy-current testing. Designed for pressure-bearing service in oil and gas gathering systems and high-pressure station process pipelines.

ERW / SSAW / LSAW Line Pipe

Welded API 5L line pipe for oil and gas gathering and long-distance transmission, covering ERW, SSAW and LSAW production routes for different diameter and pressure requirements.

Common Dimensions

ERW Pipe:

OD: 26.9–508 mm

Wall Thickness: 2.11–12.7 mm

Standard Length: 6 m / 12 m

SSAW Pipe:

OD: 219–2420 mm

Wall Thickness: 6–25.4 mm

Standard Length: 12 m

LSAW Pipe:

OD: 406–1626 mm

Wall Thickness: 8–40 mm

Standard Length: 12 m

Surface & Performance:Optional 3PE / 2PE anti-corrosion coatings and FBE internal coating are available. Dense welded seams provide suitability for long-distance oil and gas transmission. ERW weld seams undergo full-length ultrasonic inspection, while LSAW weld seams can undergo 100% UT + RT inspection.

Pressure Vessel Steel Plate

Pressure vessel steel plate for refinery reactors, tanks and pressure-retaining equipment requiring reliable performance under elevated temperature and pressure.

Common Dimensions

Thickness: 6–120 mm

Width: 1500 / 1800 / 2000 / 2500 mm

Length: 6000 / 12000 mm

Processing: Custom fixed-length cutting available

Surface & Performance:Normalized rolling, qualified impact testing and ultrasonic inspection. Designed for high-temperature and high-pressure service in refinery pressure equipment and oil and gas storage vessel applications.

Stainless Steel & Nickel Alloy Pipe

Corrosion-resistant stainless and nickel alloy pipe for sour oil and gas service, wellhead systems, chloride-containing media and seawater process piping.

Common Dimensions

Seamless Stainless Steel Pipe:

OD: 12.7–406 mm

Wall Thickness: 1.65–25 mm

Nickel Alloy Pipe:

Inconel 625 and Alloy 825 available within the same stated size range

Surface & Performance:Solution annealed and pickled surface. Provides resistance to chloride pitting and H₂S stress cracking, making it suitable for highly corrosive sour oil and gas service, wellhead systems and seawater process pipelines.

Applicable Standards & Main Grades

Product Category Applicable Standards Main Grades / Material Grades
API Oilfield Casing & Tubing API Spec 5CT; sour service requirement referenced to NACE MR0175 J55, K55, N80, L80, P110; L80-13Cr, C90, T95 for sour service
API Drill Pipe API Spec 5DP E75, X95, G105, S135
Carbon Seamless Steel Pipe API 5L; ASME B36.10M Gr.B, X42, X52, X60, X65, X70
ERW Welded Steel Pipe API 5L Gr.B–X65
SSAW Welded Steel Pipe API 5L Gr.B, X42, X52, X60, X65, X70
LSAW Welded Steel Pipe API 5L X70, X80
Pressure Vessel Steel Plate ASME SA516; ASME SA387; EN 10028 SA516 Gr60, SA516 Gr70, SA387 Gr11, SA387 Gr22, P265GH
Stainless Steel & Nickel Alloy Pipe ASTM A312; ASTM B423; ASTM B444 316L, 2205 Duplex, Alloy 825, Inconel 625

MTC Certification

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