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Home > Metallurgy, Mineral & Energy > Steel & Products > Steel Pipe & Tube > API 5CT Coupling Stock – Seamless Tube Material for Manufacturing API Couplings Used to Connect Casing and Tubing in Oil and Gas Wells.
API 5CT Coupling Stock – Seamless Tube Material for Manufacturing API Couplings Used to Connect Casing and Tubing in Oil and Gas Wells.
Product Spotlights
API 5CT coupling stock – seamless tube material for manufacturing API couplings used to connect casing and tubing in oil and gas wells. API Monogram licensed.
Grades: J55, K55, N80, L80, P110, Q125
Forms: Tube stock / Blanks / Fully machined couplings
Negotiable
MOQ: 1 Metric Ton (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Type:
Seamless
Warranty:
1 Y
Technique:
Cold Drawn
Payment & Shipping
Payment Methods:
Port of Shipment:
Shanghai
Delivery Detail:
30 days
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Type
Seamless
Warranty
1 Y
Technique
Cold Drawn
Surface Treatment
Other
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Other
Material
Carbon Steel
After-sales Service
Y
Section Shape
Round
Transport Package
Hexagonal or square bundle
Specification
6-256MM
Trademark
N/A
Origin
CHINA
API 5CT Coupling Stock – OCTG Coupling Material for Casing & Tubing
Grades J55 / N80 / L80 / P110
Product Overview
API 5CT coupling stock – seamless tube material for manufacturing API couplings used to connect casing and tubing in oil and gas wells. API Monogram licensed.
Grades: J55, K55, N80, L80, P110, Q125
Forms: Tube stock / Blanks / Fully machined couplings
✅ API 5CT 10th Edition / ISO 11960
✅ Same grade as pipe – API compliant
✅ Seamless – thread integrity
✅ Sour service grades (L80 ≤23 HRC)
✅ 100% tested – MTC with heat number
Grade Selection Guide
| Pipe Grade | Coupling Grade Required | Sour Service |
|---|---|---|
| J55 / K55 | J55 or higher | No |
| N80 | N80 or higher | No |
| L80 | L80 (≤23 HRC) | Yes |
| P110 | P110 or higher | No (not for sour) |
Supply Options
| Form | Lead Time |
|---|---|
| Coupling material tube | 7-15 days |
| Coupling blanks (rough machined) | 15-25 days |
| Fully machined couplings | 20-30 days |
Contact
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website:
Tags: API 5CT Coupling Stock Coupling Material OCTG
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1Yr
Business Type
Trading Company
Year Established
2021
Factory Size
50,000-100,000 square meters
Annual Export Value
Below US$1 Million
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