K55 R3 Casing Pipe

Name: 9-5/8 36-40ppf Stc Ltc Btc J/K55 R3 Casing Pipe
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2146889972

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

US$860.00

30-299 Tons

US$840.00

300-2,999 Tons

US$800.00

3,000+ Tons

Sample price:US$40.00/piece.Request sample

Product profile

After-sales Service

One Year

Warranty

Six Months

Manufacturing Process

CNC Milling

Model NO.

9-5/8 36-40PPF J/K55 STC LTC BTC R3

Surface Treatment

Polishing

Specification

9-5/8

Trademark

eastlong

Origin

China

HS Code

7304291000

Production Capacity

200000tons/Year

Key features

API 5CT Certified: Meets API 5CT and ISO11960 standards with authorized certification.

Wide Grade Range: Available in H40, J55, K55, N80, L80, C90, T95, P110, Q125 grades.

Customizable Sizes: OD ranges from 1.66 to 20 inches; wall thickness per API 5CT.

Multiple Thread Types: Options include Integral Premium, Box-by-Pin, Pin-by-Pin, and Flush joint.

Professional Packaging: Bundled carton, wooden case, or customized packing for safe transport.

Expert Engineering Team: Supported by 16 senior and 37 junior engineers for R&D and testing.

Strict Quality Control: Multi-stage inspections from raw materials to final shipment ensure quality.

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

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.