What is the average lead time?

The average lead time is within 15 workdays for both peak and off-season periods.

Which standards does the product comply with?

The product complies with API 5L, API 5CT, ASTM A106/A53, ASTM A519, JIS G 3441/3444/3445, DIN 2391, EN10305/10210, and ASME standards.

What is the structure type of the tubing?

The structure type is vertical.

API 5CT J55 Seamless Oil Tubing with Premium Thread

Name: API 5CT J55 Seamless Oil Tubing with Premium Thread
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 1987730111

Tianjin, ChinaTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.

US$40.00

1-9 Pieces

US$39.00

10-999 Pieces

US$35.00

1,000+ Pieces

Product profile

Warranty

Six Months

Structure

Vertical

Specification

API 6A

Model NO.

2-7/8

Trademark

eastlong

Origin

China

Key features

High-Strength Alloy Steel: Made of N80, P110, Q125 steel for excellent tensile and compressive resistance in extreme conditions.

Premium Thread Sealing: Equipped with API standard threads (STC, LC, BC) or gas-tight connections (VAM, Hydril) to prevent leaks.

Anti-Corrosion Options: Surface treatments like phosphating, copper coating, or epoxy powder coating enhance resistance to H2S and CO2.

Customizable Specifications: Diameter 1/8-30 inch, wall thickness 1.24-63.5mm, and lengths (Random, Fixed, SRL, DRL) are fully customizable.

Wide Application Scope: Suitable for vertical, directional, horizontal, deep, and ultra-deep wells in high-pressure and H2S environments.

Multiple Steel Grades: Available in API 5L, ASTM A53/A106, ASME SA106/192/213/335, and DIN17175 grades.

API 5CT Certified: Manufactured under strict API 5CT standards with ISO9001 and BV supplier evaluation certificates.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season periods.

Company profile

Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.Tianjin, China

Business Type: Manufacturer/FactoryExport Year: 2019-06-07Nearest Port: TIANJIN PORT, QINGDAO PORT, SHANGHAI PORTAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP

AI-Powered supplier vetting

SummaryTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd. is a China-based manufacturer founded in 1999, focused on oil pipes, pipe fittings, drilling and production tools, and petroleum automation equipment. The supplier reports ISO 9001 and ISO 14001 certification, 10 production lines, 11–20 years of R&D engineer experience, and 11–20 quality-control staff. It states that its capabilities cover design, development, manufacturing, testing, experimentation, and full-cycle service, supported by more than 30 independent intellectual property rights and an intelligent workshop. The company exports to broad global markets and reports export activity since 2019, but the provided information does not identify specific customer cases or independently verify the stated capabilities.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company based in Tianjin, China. Its stated business focuses on petroleum equipment, oil pipes, pipe fittings, drilling and production tools, and automation equipment, matching the listed industrial product categories.

CertificationsThe supplier reports holding ISO 14001 and ISO 9001 management-system certifications. These are explicit certification records in the provided data, although certificate scope and validity dates are not given.

R&D capabilityThe supplier reports more than 30 independent intellectual property rights, an intelligent workshop, numerical-control automation equipment capabilities, an e-commerce platform, and recognition as a national science and technology-based small and medium-sized enterprise. These statements provide explicit evidence of innovation-related infrastructure and activity.

Production capacityThe supplier describes an integrated chain covering design, development, manufacturing, testing, and experimentation; operates 10 production lines; and has an intelligent workshop. It also reports oil equipment and pipe-related manufacturing experience, with stated order fulfillment within 15 workdays in both off-peak and peak seasons, supporting a positive production-capability assessment.

Customization capabilityThe stated full-cycle integration of design, development, manufacturing, testing, and experimentation, together with numerical-control automation equipment and an intelligent manufacturing model, indicates the ability to develop and manufacture tailored petroleum equipment. However, no specific customized project examples, engineering-change process, or minimum-order requirements are provided.