J55 K55 N80 API 5CT API 5DP

OCTG / Drill Pipe / Line Pipe

Quote OCTG, API 5DP drill pipe, API 5CT casing or tubing, and API 5L line pipe as controlled line items with grades, connections, testing, MTC, and export packing.

MOQ: Typically 1 container
Lead time: 7-21 working days after confirmation
Origin: China
Monthly supply: 5,000+ metric tons per month
Standards: API 5CT, API 5DP, API 5L
Surface: Mill finish with storage compound, External coating by OCTG or line-pipe specification, Threaded ends with protectors
Certificates: EN 10204 3.1 / MTC
Packing: Pipe and hollow-section lots are bundled by size and heat or lot where traceabi…

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PRODUCT TECHNICAL SPECIFICATION PLATE ORDER-SPECIFIC DATA

TECHNICAL METRICS

Material: Carbon Steel
Form: Pipe
Primary Grade: J55
Primary Standard: API 5CT

LOGISTICS & DISPATCH

MOQ: Typically 1 container
Lead time: 7-21 working days after confirmation
Origin: China
Monthly supply: 5,000+ metric tons per month

Full specifications

Full specifications
Property	Value
Product families	API 5DP drill pipe; API 5CT casing/tubing; API 5L line pipe as separate PO lines
Grade and range	State API grade, nominal weight, range, and service requirement
Connections	Connection, upset, coupling, and thread protector details by product family
Inspection	Hydrostatic, NDT, drift, thread, and document scope per standard and PO
Outer Diameter	Φ60-508mm
Use	Oilfield casing, drill and line pipe

Overview

OCTG, drill pipe, casing, tubing, and line pipe belong to related oilfield supply programs but use different product standards, connections, grades, and inspection plans. This page supports a project-level RFQ that separates each line item, including API 5CT casing or tubing, API 5DP drill pipe, and API 5L line pipe, so incompatible tubular products are not grouped under one vague specification. For a controlled quotation, the RFQ must identify the governing standard and grade, outside diameter or section size, wall thickness, length, end finish, quantity, coating, service, and destination port. The commercial review checks that the manufacturing route matches the intended duty before price release; welded,…

Applications

Drilling strings and oilfield tubular programs
Casing and tubing strings under API 5CT
Pipeline packages under API 5L when listed as a separate line item

Surface options

Mill finish with storage compound
External coating by OCTG or line-pipe specification
Threaded ends with protectors

Processing & form

API connection and tool-joint selection
Range or fixed-length sorting
Thread inspection and protector fitting
Hydrostatic, NDT, and drift testing as ordered

RFQ documents & delivery

Packing, MTC, and inspection path — include them in your RFQ for an actionable quote.

Packing & delivery

Order-specific packing

Pipe and hollow-section lots are bundled by size and heat or lot where traceability is required. Export packing can include steel straps, waterproof wrapping, lifting points, bevel or thread protectors, end caps, and durable shipping marks. Bundle weight, loose-loading restrictions, container limits, discharge method, destination port, and any break-bulk lashing plan are confirmed before loading.

Quality assurance

Documents as ordered

Inspection is agreed against the purchase order, governing product standard, and any approved inspection and test plan. The review can cover grade and heat identity, dimensions, wall thickness, end preparation, visual condition, coating, hydrostatic testing, and NDT records where applicable. EN 10204 3.1 documentation and third-party witness points must be requested before production is released.

Supply confidence

Stock, inspection, and product uses

Fixed delivery proof plus this product’s applications — confirm stock, inspection, and end use before RFQ.

Steel bundles staged by lot in the warehouse

Warehouse & staged stock

Strapped coils and plates staged by lot so grade, thickness, and destination port can be matched quickly for shipment.

Factory capability Ask stock & lead time

Buyer verifying thickness and specs on site

Buyer visits & inspection

Overseas buyers and third-party inspectors are welcome to verify specs, heat numbers, and packing. SGS/BV support available.

Quality & standards Arrange inspection

Steel used in oil, gas, and pipeline work

Typical applications for this product

Typical uses for this product: Drilling strings and oilfield tubular programs; Casing and tubing strings under API 5CT; Pipeline packages under API 5L when listed as a separate line item. Share your end use, environment, and packing needs in the RFQ.

View oil & gas Quote for this use case

FAQ

What should an RFQ for OCTG / Drill Pipe / Line Pipe include?

State product type, API standard, grade, OD, weight or wall, range, connection, PSL where applicable, testing, quantity, and port. A complete line-item specification is required before manufacturing route, availability, inspection, and packing can be confirmed.

What quality documents are available for OCTG / Drill Pipe / Line Pipe?

The ordered document pack can include mill certificates, lot or heat identity, dimensional and visual inspection records, and product-specific test reports. Third-party inspection must be agreed before production or stock allocation.

How is OCTG / Drill Pipe / Line Pipe packed for export?

Packing is selected from the product form, unit weight, handling method, destination climate, container or break-bulk limits, and discharge plan. Confirm the destination port and any storage constraints on the RFQ.

Request a Quote

Send the complete OCTG / Drill Pipe / Line Pipe specification, quantity, inspection scope, packing preference, and destination port for review.

Request Technical Quote WhatsApp for urgent specs

Web RFQ: formal quote + document path
WhatsApp: fast confirm for urgent specs