Import Api J55/N80 1.66 Inch Tubing — Buy in wholesale FOB from Supplier in China

API 5CT J55/N80 1.66 inch seamless steel tubing is a premium OCTG product manufactured by Tianjin Grand Victory Petroleum Equipment Co., Ltd in Tianjin, China, for oil and gas extraction and transport operations. The tubing is built to API 5CT standards with a 1.66 inch nominal diameter and carbon steel API J55/N80 grade material, providing burst and collapse resistance for high-pressure downhole environments. This seamless construction is sourced for international energy projects where reliability under extreme pressure conditions is non-negotiable.

The J55 grade offers a minimum yield strength of 55 ksi, while the N80 grade provides 80 ksi minimum yield strength, with both grades normalised or quenched and tempered depending on the specific variant required. The 1.66 inch outer diameter is a standard size in OCTG inventories, typically supplied with threaded and coupled connections per API 5CT requirements. Corrosion resistance is achieved through controlled chemical composition limits, with standard phosphorus and sulphur content restricted to 0.030% maximum per API specification. Wall thickness tolerance is typically held to -12.5%/+0%, with diameter tolerance of -0.5%/+1.0% for seamless tubing in this size range.

This tubing is deployed in well construction, completion, and production phases, serving operators and drilling contractors in both onshore and offshore environments. The product is suitable for vertical, directional, and horizontal wellbore applications where tubing must withstand internal pressure, external collapse, and axial loads. Buyers should confirm the exact grade variant (J55 or N80), heat treatment condition, and connection type required for their well design. The supplier's location in Tianjin provides access to northern China's established steel manufacturing base and port infrastructure for international shipment.

Tianjin Grand Victory Petroleum Equipment Co., Ltd is based at Jinghai No.17 Guanghai Road, Tianjin 301600, China, operating from one of China's principal petroleum equipment manufacturing regions. The supplier holds a harbor trust tier classification, though prospective buyers should note that the response rate stands at 0.00% with zero average response hours recorded, suggesting limited communication history through the platform. The company's specialisation in petroleum equipment is reflected in its product focus on API-certified OCTG products for international energy markets.

The supplier profile does not disclose manufacturing certifications, quality management systems, export licence details, or specific production capacity figures beyond what can be inferred from its product listings. Buyers are advised to request direct verification of API 5CT licence status, ISO 9001 certification, and factory audit reports before committing to orders. The Tianjin location offers logistical advantages through proximity to Tianjin Port, one of northern China's major export gateways for steel products, though shipping arrangements and Incoterms must be confirmed directly with the supplier.