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


30inch 64inch ssaw welded pipe


product name ssaw welded pipe

out diameter :30inch  64inch

wall thickness : 5mm-30mm

length: 6m-32m

sheet width 600mm-2000mm
certificate ISO 9001:2008, API, SGS, BV
surface coating


2.varnished coating lacquer coating

4.bitumen Coating

5.anti-corrosion coating


6.cement Mortar

7. epoxy coating

8.customer’s requirement

package 1.big OD: In bulk

2.small OD: Packaged in bundles by steel strip

3.according to client's requirement

end plain end, spigot & socket joint, beveled, cut square, flanged, piling shoes
delivery time within 10-30 days,ASAP. according total quantities
application 1.line pipe for use in pipeline transportation systems in the petroleum and natural gas industries;
2.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; 
3.predominantly used in the construction of chemical plant, vessels, pipe work and for general mechanical engineering purposes;
4.applies to structural hollow sections and pressure purposes etc.


30inch 64inch ssaw welded pipe

material and standard



Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8
 S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33,St37, St44, ST52
ASTM A 53: Gr. A, Gr B, Gr C, Gr.D
API 5L: A, B, X42, X46, X52, X56, X60, X65 X70
GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
ASTM A252: Gr.1 Gr.2 Gr.3

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