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


alloy seamless steel pipe #SGS BV ISO VOC CE Cetificates

alloy seamless steel pipe #SGS BV ISO VOC CE Cetificates
 1.alloy seamless steel pipe 
2. OD: 6-1260mmWT: 1-60mm 
3. large Stocks are available. Welcome to inquiry! 
Alloy seamless steel pipe
Alloy steel seamless pipe/alloy pipe/alloy steel pipe/high-temperature alloy steel pipe/ alloy tube/ASTMA335 standard alloy pipe P22/ ASTM A335 P22 alloy pipe,  alloy seamless pipe p22
ASTM, BS, DIN, JIS, GB, etc.
Grade:Q345A/B, Cr5Mo, 12Cr1MoV, 10CrMo910,,27SiMn, 15CrMo, 30CrMo, 34CrMo4, etc
Other standard and grade is also availalbe as per clients' requirements
Specification:Steel pipe |
O.D.12-1020mm, W.T. 1-60mm.
Bevelled/plain end or varnished to be confirmed by clients 
Marking: as per customer's requirement

Seamless steel pipe|

Dimensions, Mechanical properties, Chemical compositions: 
Refer to relative standard as per clients requirements

API steel pipe|

Bundles, seaworthy wooden cases
With or without edge protector, steel hoop and seals, or as per customers' requirements
other material or pipes we also can supply:


Casing Pipe/Oil pipe 

Seamless or welded According to 

API-5CT standard


J55\K55\N80\L80\P110/M65/C95 , LTC/STC/BTC; 




Seamless line pipe/API -5L  


PSL 1:A25\A\B\X42\X46\X52\X56\X60\X65 \X70

  PSL 2:B\X42\X46\X52\X56\X60\X65\X70\ X80

Carbon seamless pipe 



1.  A210-C                       St52.4\St52         STS49

2.  ASTM A106 GR.A\B\C;  ASTM A53 GR.A\B /API 5L-GrB

3. DIN1629   4.  JIS G3454    5. ASTM A192\A210\A179

6.  DIN17175    7. JIS G345    8. JIS G3456  9. BS1387

10. GB / T 6728, ASTM A 500, EN 10217, Q195-Q235

11. ST35.8/ST45.8  12. DIN2448, 13. DIN 1629



Alloy pipe


Alloy pipe

Seamless or welded



210 (Gr. A1,C), 556, 213 (T1, T2, T5, T9, T11, T12, T22)

335 (Gr P1, P2, P5, P9, P11, P12, P22) 333 (Gr.1,3.,6) 209(T1, T1A, T1 b)


17175 ( Gr.4538, 15Mo3, 13CrMo44, 10CrMo910)

2448 ( Gr. ST37), 1630 (ST37.4, 44.4), BS3059 (Gr CFS 360,440, 243, 620, 622-440, 622-490), 

980 (Gr.CDSI), 6323 (CFS3), 3602/1 (Gr.360, 430)


A335-P1                  15Mo3             STPA12

A335-P2\A213-T2                             STBA20  

A335P12\A213T12         13CrMo44          STBA22

A335-P11\A213-T11                           STBA23

A335-P22\A213T22        10CrMo910          STBA24

A335-P5\213-T5             12CrMo195        STBA25




Stainless steel pipe

Seamless or welded 


304(0Cr18Ni9 ) 304L(00Cr19Ni10 ) 321(1Cr18Ni9Ti )


310S(0Cr25Ni20) 310S(1Cr25Ni20Si2)904L(00Cr20Ni25Mo4)



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