About Us
Eastern Steel Manufacturing Co.,Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products and fittings. We supply first-step processing, semi-finished parts and finished parts to help our clients meet fabrication requirements beyond their capacity or to improve operations by moving forward the pre-production processing.
Product Category
News
In this column you can find the steel pipe related articles you need, including industry trends, product standards and materials, and some technical guidelines.
Services
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Facility
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Projects
Many years of large-scale project experience in various fields（Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical etc.）, professional project team is responsible from receiving until the end of the project.
The seamless casing pipe coupling is used to connect two threaded seamless casing pipe pipes and has a cylindrical body with internal threads. The applicable specifications of the plug gauge for seamless casing pipe coupling inspection are tubing TBG, UP TBG2 3/8-4 1/2, etc., casing slant thread BCSG4 1/2-20 inches, casing round thread CSG4 1/ 2-20 inches and so on.
Plug gauges of various specifications are designed and manufactured in accordance with API standards. The advantages are simple operation, improved work efficiency for users, and reduced labor intensity of operators.
Executive standard: API SPEC 5CT, API SPEC 5B, ISO 11960:2004
Specification range: 127~365.12mm (4 1/2"~13 3/8")
Thread type: short circle (STC), long circle (LC), partial trapezoid (BC)
Suitable for pipe material: H40, J55, K55, M65, N80-1, N80Q, L80, C95, T95, P110
The plate gauge is suitable for tubing coupling: (NU, EU) steel grade: J55, N80, L80, P110 Specifications: 1.9", 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2".
E-mail: sales@eastern-steels.com
