API 5CT OCTG Stc Coupling and Threads for Casing and Tubing

Name: API 5CT OCTG Stc Coupling and Threads for Casing and Tubing
Brand: Jiangsu Service Petroleum Technology Co., Ltd.
SKU: 2295261655

Jiangsu, ChinaJiangsu Service Petroleum Technology Co., Ltd.

US$20.00-120.00

1 Piece

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

Stc

Manufacturing Process

CNC Turning

Surface Treatment

Shot-Blasted and Copper-Plated

Operation Pressure

High Pressure

Material

Carbon Steel

Feature 1

Advanced Materials

Feature 2

Premium Threading

Feature 3

Precision Customization

Feature 4

Corrosion Resistant, Wear Resistant

Feature 5

High Strength, High Pressure Resistant

Transport Package

Wooden Case

Specification

Customized

Origin

China

Production Capacity

1000 Pieces/Month

Key features

API 5CT Casing Coupling with Phosphating or Copper Plating

Premium OCTG Coupling, Phosphating or Copper Plating Available

High-strength forged steel coupling for casing and tubing connections

Interchangeable and multi-functional, compatible with various drill pipes, tubing and casings

Customizable surface treatments: phosphating or copper plating

Company profile

Cooperated with Fortune 500Product Certification100% Finished Products InspectionOEM Services

Jiangsu Service Petroleum Technology Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.87h

About Our Factory & Business Background

Address327, Dapu'an, Pu'an Village Committee, Lijia Town, Wujin District, Changzhou City

Plant Area2000 square meters

Number of Employees25

Registered Capital10,000,000 RMB

Terms of PaymentT/T

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 pcs

Supply Chain Partners16

Our Production Capability & Technical Expertise

Main ProductsFloat Shoe, Float Collar, Stage Collar, Liner Hanger, Float Coupling, Cementing Head, Cementing Plus, Centralizer, Stop Collar, Casing Tubing, Pup Joint, Crossover, Blast Joint, Coupling

Production Lines6

Production MachinesCutting Facility, Roughing Facility, Thread Facility

QA/QC inspectors5 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers3 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2015-11-11

Main MarketsSouth America, Europe, Southeast Asia/ Mideast

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff3

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015, ISO45001:2018, ISO14001

Product CertificationOthers

Cooperated with Fortune 500Yes

Product Q&A

Q:What industry standards do your casing couplings comply with?

Our couplings are fully manufactured in accordance with API Spec 5CT (for material and dimensional requirements) and API Spec 5B (for threading specifications). We also operate under an API Spec Q1 certified quality management system, ensuring consistent, reliable performance for oilfield applications.

Q:What types of connections/threads do you support for couplings?

We support both standard API threads (including STC, LTC, BTC) and authorized premium connections . All premium threads are produced with full authorization, ensuring 100% compatibility and interchangeability with premium casing/tubing strings.

Q:What material grades and steel types are available for your couplings?

Standard API grades: J55, K55, N80, L80, P110 High-pressure options: V140, V155 Corrosion-resistant alloys (CRA): L80-13Cr, Super 13Cr, Inconel 718 for sour service and corrosive environments

Q:Can you provide custom non-standard couplings (special sizes/threads)?

Yes. We specialize in precision-machined custom couplings, including non-standard sizes, special thread forms, and modified designs, to match your exact casing/tubing string requirements. All custom orders are processed with strict dimensional tolerance control and full quality inspection.

Q:How can I get an accurate quotation for couplings?

Please provide detailed technical requirements, including coupling size, material grade, thread type, quantity, and any special requirements (e.g., coating, testing). Our engineers will review your needs and provide a formal quotation within 1-2 working days.