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 5lCT GRB K55 casting steel pipe


1.Standard:API 5L API 5CT GB/T9711.1 GB/T9711.2 
2.Grade:B,X42,X46,X52,X56 x60.x70 
Size: 1/2"- 48" (SMLS)24"- 72" (SEAM)| Carbon steel pipe


API 5L, API 5CT, ASTM A53, ASTM A252, ASTM A500, ASTM A795, BS1387, BS1139, EN10255, EN10219, EN10217, EN39, DIN2440/2444, ISO3183, ISO11960, JISG3444, JISG3454 etc


Material/steel grade

API 5LGR.B ASTMA106/A53GR.B Q345B 10#,20#,45#seamless carbon steel pipe | 

A25, A25P, A, B, X42, X46, X52, X56, X60, X65, X70, L175, L175P, L210, L245, L290, L320, L360, L390, L415, L450, L485, BR, X42R, BN, X42N, X46N, X52N, X56N, X60N, BQ, X42Q, X46Q, X52Q, X56Q, X60Q, X65Q, X70Q, X80Q, BM, X42M, X46M, X52M, X56M, X60M, X65M, X70M, X80M, X90M, X100M, L245R, L290R, L245N, L290N, L320N, L360N, L390N, L415N, L245Q, L290Q, L320Q, L360Q, L390Q,L415Q, L450Q, L485Q, L555Q,


Round Section alloy steel pipe l555 | 25crmo4 alloy steel pipe |

Outer Diameter


Wall Thickness

2mm~60mm | astm a 335 gr p22 |


painting  BE Plastic caps MARK in the end


Usually  10 Metric Ton, also depending on production schedule and stock condition etc


line pipe for use in pipeline transportation systems in the petroleum and natural gas industries,

for use as casing and tubing for wells, screwed and socketed steel tubes and tubulars and for plain end steel tubes

suitable for welding or for screwsing to BS21 pipe threads, loose steel tubes, scaffolds,Welded steel Pipe | 

used for the conveyance of fluids as well as for other applications, applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in-place concrete piles,

for welded, riveted,or bolted construction of bridges and buildings, and for general structural purposes,

suitable for nominal pressure 25 for liquids and nominal pressure 10 for air and non-hazardous gases,Oil pipeline | 

pressure purposes,


Delievery time

Within 15 days after the order confirmedalloy pipe a335 p11 | Boiler steel pipe

Payment term

T/T,30% payment in advance.or irrevocableL/C At SightCasting steel pipe


Our products are sold to the United States, Italy, Germany, Malaysia, Thailand, South Korea, Kuwait, Czech, Indonesia, Hong Kong, India, Iran,

Pakistan, Chile, Brazil, Singapore and other countries and regions.







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