Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association


API 5CT line pipe

API 5L SPEC 5L-2007(line pipe standard) is drawed up and issued by American Petroleum Institute, which is used all over the world. Line pipe is a type of pipes that transports the oil, gas and water that is out of the earth to the gas and oil companies or enterprises. There are two types: Seamless and welded The ends are including plain, threaded, and female end. The connections are: End welded, coupling and socket connection etc. The main materials are: B, X42, X56, X65, X70 etc. Our company had passed API approvals in Aug, 2009. (API 5CT and API 5L). 

Seamless steel pipe 
1) Standard: ASTM, API, DIN, ANSI 
2) Material, GR. B, API 5L, 
2) OD: 10.3-813mm 
3) WT: 4-60mm Product name Seamless steel pipe 

Outside Diameter 10-813mm 
Wall Thickness 4-60mm 
Material 10# 20# 45# 
Origin China 
Certificate API5L ISO9000 API 5CT 
Technique hot rolled 
Application use for oil well, boilers, precision machines, petro-chemical, ship, structure pipe, building, fluid tubes, line pipe etc. 


Testing we have professional testing equipments such as ultrasonic testing machine, eddy current testing machine, mechanics testing machine to make sure high quality 
Tolerance: WT TOLERANCE-5%+5% 
Min Order 5 TON 
Usage Petroleum and natural gas industry, chemical industry, electric industry, flammable and non-flammable liquid transportation and steel construction, drainage project and city construction etc. 
Package in bulk, in bundlesstandard seaworthy package 
Length 5.8m-11.8m 

|Elbow 90 Degree| |Elbow 45 Degree| |Reducing Elbow| |Equal Tee| |Reducing Tee|

|Concentric Reducer| |Eccentric Reducer| |Pipe Elbow| |Pipe Tee| |Pipe Reducer|

|Pipe Cap| |Flange| |Pipe Bend| |Pipe Cross| |Lap Joint| |Pipe Flange| |Flange| |Socket Flange| |Blind flange|

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