High-Performance Stainless Steel Tubes for Oil & Gas Applications

Engineered for extreme conditions — corrosion-resistant, pressure-tested tubing for upstream, midstream, and downstream reliability.

MOQ from 100–300 kg · Lead time 7–10 days · EN 10204 3.1 MTC standard

Oil and gas tubing requirements vary sharply by service point — surface gathering lines see different chloride and pressure conditions than downhole injection lines or hydraulic control lines exposed to H2S. TeCarve supplies seamless and welded stainless steel tube for exploration, gathering, hydraulic control and injection-well applications, with grade and wall thickness selected around the specific service conditions named in the project.

For sour-service or high-chloride environments, material selection and any applicable NACE MR0175 / ISO 15156 requirements should be confirmed and verified against the project specification before quotation — these are project-specific requirements rather than a blanket certification TeCarve holds independently of the order.

Related Products

Discover more stainless steel tube and pipe options that complement your selection. Our linked products help you find the right material, shape, and specification for every industrial need. Whether you’re seeking seamless precision, welded strength, or specialized forms — we’ve got you covered.

Service-Point Material Selection

Grade can be matched to gathering lines, hydraulic control lines, injection wells or exploration equipment based on the stated chloride, H2S and pressure conditions.

Sour-Service Requirements Confirmed Per Order

NACE MR0175 / ISO 15156 and similar sour-service requirements are reviewed and confirmed against the project specification, not assumed as a blanket claim.

Temperature Range Support

Options are available for both high-heat process lines and cryogenic service points.

Pressure-Rated Construction

Wall thickness and tube form are specified to match the hydraulic or process pressure stated for the line.

Coil or Straight-Length Supply

Spooled coils up to 18m or straight lengths are available depending on installation method.

Precision Tolerances for Orbital Welding

Tight ID/OD control supports orbital weld-ready field installation.

Stainless Steel Pipe & Tube for Oil & Gas Industry

Need grade and standard details for oil & gas piping? Read our Seamless Pipe & Tube for Oil & Gas Industry: Grades, Standards, and Selection Guide.

TeCarve’s stainless steel tubing is widely applied in critical oil & gas systems such as hydraulic control lines, instrumentation tubing, chemical injection, downhole tools, gas lift, and steam-assisted gravity drainage (SAGD). Applicable NORSOK, ASTM, EN, API and other project-specified standards are reviewed and confirmed for each order.

Hydraulic Control Lines

Tube Types: Seamless, Coiled

Grades: 316L, 825, 625

OD Range: 1/8" – 3/8" (3.18mm – 9.53mm)

Wall Thickness: 0.71mm – 1.65mm

Common Size: 6.35 × 1.0mm, 9.53 × 1.65mm

Finish: Bright Annealed

Remarks: Supplied in continuous coil up to 6,000 meters

Chemical Injection Lines

Tube Types: Seamless, Welded

Grades: 316L, 904L, Alloy 825

OD Range: 6mm – 19.05mm

Wall Thickness: 0.89mm – 2.11mm

Common Size: 12.7 × 1.24mm

Finish: Pickled or Polished

Remarks: Optional PVC jacketing

Downhole Tubing

Tube Types: Seamless Thick-Walled

Grades: 316Ti, Duplex 2205, 2507

OD Range: 12mm – 25mm

Wall Thickness: 2mm – 5mm

Common Size: 19.05 × 2.77mm

Finish: Mill Finish

Remarks: Applicable NACE MR0175 requirements confirmed per project

Instrumentation Tubing

Tube Types: Seamless

Grades: 316/316L, 321

OD Range: 1/4" – 1" (6.35mm – 25.4mm)

Wall Thickness: 0.89mm – 2.11mm

Common Size: 12.7 × 1.24mm

Finish: Bright Annealed

Remarks: Compatible with Swagelok® fittings

Steam Injection / SAGD Lines

Tube Types: Seamless

Grades: 316L, 347H, 625

OD Range: 12.7mm – 38.1mm

Wall Thickness: 1.65mm – 4mm

Common Size: 25.4 × 2.11mm

Finish: Descaled or Shot Blasted

Remarks: High-temp service > 600°C

Gas Lift Systems

Tube Types: Capillary Tubes

Grades: 316L, 825

OD Range: 1.6mm – 6mm

Wall Thickness: 0.2mm – 1mm

Common Size: 3.18 × 0.5mm

Finish: Bright Annealed

Remarks: Small-bore delivery lines

High-Pressure Seamless Stainless Steel Piping for Oil & Gas Operations

Seamless & Thick-Walled Tubing: 316L, 904L & Duplex 2205

Cold-drawn seamless pipes in 316L, duplex 2205, and 904L for upstream extraction, refining, and sour-service environments.

NDT & Factory Hydrostatic Testing Up to 20–30 MPa

NDT per standard or order; hydrostatic testing per standard or order on automated factory test benches rated up to 20–30 MPa with 5–10 second pressure holding.

Factory-direct from our two partner factories in Foshan & Wenzhou

Complete melt heat traceability with standard EN 10204 3.1 MTC. Third-party inspection (SGS, BV, TÜV) and EN 10204 3.2 endorsement supported on request.

Sole export arm of two stainless steel tube factories in Foshan and Wenzhou.

Sample EN 10204 3.1 mill test certificate

TeCarve ISO 9001:2015 certificate issued by Shanghai Ingeer Certification

ISO 9001 · 14001 · 45001 certificates

Forming stands on a welded stainless tube mill

Book a live video audit of either partner factory

MOQ

Standard oil and gas piping from 100–300 kg (supports repairs and field trials).

Lead Time

In-stock standard sizes 7–10 days; custom production 10–25 days.

Response

Technical quotation within 24 hours.

Documents

Standard EN 10204 3.1 MTC; 3.2 / TPI (SGS, BV, TÜV) on request.

Request an Oil & Gas Pipe Quote (24h) → Download Heavy-Wall Sizing Chart View Thick-Walled Pipe Specs →

Recent Export Cases

Supplied from our partner factories in Foshan & Wenzhou. Customer names withheld.

Brazil Seamless Pipe →

ASTM A312 TP316L, 8" SCH 80 × 6,000 mm

UAE Clad Pipe →

API 5L X65 with Alloy 825 (UNS N08825) cladding, 12" OD, WT 18 mm + 3 mm clad layer × 12,000 mm

Verified Client Feedback

Direct excerpts from international buyers receiving our precision stainless tube shipments.

“I've received the goods and everything is fine.”

— Tommy, Nigeria

“The goods already send to customers. I am waiting for the next order from them.”

— Khalid, Indonesia

“…there is no need of inspection this time… I trust in your product.”

— Carmen, Chile

Frequently Asked Questions

What hydrostatic test pressures do TeCarve partner factories support for oil and gas piping?

Our partner factories operate automated hydrostatic testing benches rated up to 20–30 MPa, with minimum hold times of 5 to 10 seconds to verify structural integrity under pressure.

Can TeCarve furnish EN 10204 3.2 inspection certificates for offshore oil projects?

Yes. For offshore applications, we coordinate on request with customer-appointed third-party agencies such as SGS, Bureau Veritas (BV), or TÜV Rheinland to witness sampling, mechanical testing, and NDT, resulting in a jointly endorsed EN 10204 3.2 certificate.

Which stainless alloys are recommended for sour service containing H2S?

For sour service and chloride environments, we supply duplex 2205 (UNS S31803 / S32205) and 904L, which provide resistance against sulfide stress cracking, pitting, and crevice corrosion compared to standard austenitic grades.

What is the minimum order quantity and batch traceability for oil and gas piping?

Standard piping orders start from 100–300 kg, supporting maintenance and replacement needs. Every shipment is traceable to original melt heats and includes an EN 10204 3.1 MTC with batch PMI verification.

Contact TeCarve

Get in touch with TeCarve for premium stainless steel tubing solutions. Global delivery, factory-direct supply from two partner factories, and reliable service. If any need, please send email to sales@tecarve.com.