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


Thick wall steel pipe

 1)We manufacture large diameter thick wall steel pipe 

2)Size ;OD:3/4''-24'' 
3)Cerificate:ISO API DNV

We manufacture large diameter thick wall steel pipe


Material:API 5L GrB
Cerificate:ISO API DNV
Exported country:Brizal  Europe Middle East ect.


Nane Thick wall steel pipe, Thick wall seamless steel pipe
Size range OD:3/4’’-24’’ WT: SCH10-SCH160
Material ASTM106/A53 Gr.B

API5L Gr.B X42 X52 X60 X70

20#,35#,45#,20G,20A,40Mn2,45Mn2,27SiMn,40MnB,20MnVB,20Cr,30Cr,35Cr,40Cr,45Cr,50Cr, 38CrSi,12CrMo ,20CrMo,35CrMo,42CrMo,12CrMoV,12Cr1MoV,38CrMoAL,50CrV,20CrMnSi,30CrMnSi,35CrMnSi, 20CrMnTi,30CrMnTi,12CrNi2, 12CrNi3,12Cr2Ni4,40CrNiMoA,45CrNiMoVA,20G,20MnG,25MnG,12CrMoG

Packing Standard package, Beveled ends, anti-rust oil, plastic caps, or as customers’ requirement.
Application Oil and casing Pipe; Hydralic Pillar used Pipe; Pressure Vessel Pipe; Automobile Pipe; War industry Pipe and so on
MOQ 20tons
Delivery time 15-25days after receving deposit.
Productivity 90000tons/month
Quality API 5L , DNV, ISO
  1. Special design available according to customers’ requirement.
  2. anti-corrosion and high temperature resistant with black painting.
  3. All the production process are according to the ISO9001:2000 strictly.


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