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

 
 

vam,tubing new vam

 

 Tubing with New Vam Analog Thread

API TubingTechnical specitications

vam,tubing new vam

Steel grade

Min. Yield
Strength

(MPa)

Max.

Yield
Strength

(MPa)

Min.Tensile
Strength

(MPa)

Size (in)

Connect
Strength

(N)

OptimumMakeup
Torque(N.m)

Min.

Makeup
Torque
(N.m)

Max.

Makeup
Torque

(N.m)

J55

379

552

517

2-3/8

NU

220235

990

740

1240

EUE

319008

1750

1310

2190

2-7/8

NU

323012

1420

1070

1780

EUE

443585

2230

1670

2790

3-1/2

NU

486742

2010

1500

2510

EUE

634011

3090

2320

3860

N80

552

758

689

2-3/8

NU

319897

1380

1040

1730

EUE

464052

2450

1830

3060

2-7/8

NU

469836

1990

1490

2490

EUE

645134

3210

2340

3900

3-1/2

NU

707868

2810

2110

3510

EUE

921874

4330

3250

5420

P110

758

965

862

2-3/8

NU

440470

1740

1300

2170

EUE

638016

3080

2310

3850

2-7/8

NU

646024

2510

1880

3140

EUE

887170

3940

2960

4930

3-1/2

NU

973484

3550

2670

4440

EUE

1268022

5490

4120

6860

 

 

 

 


 

 

VAM Equivalent Casing Pipe 

VAM

We supply all seamless and ERW casing pipes according to API Spec 5CT latest edition.  Grades: H40, J55, K55, N80, L80, HC N80, C90, T95, P110, HC P110. The outer diameter of casing is ranging from 4 1/2" to 20". 30” conductor with plain ends or fast connection is also available. 

 

Manufacturing method

Cold Drawn or Hot-rolled Seamless, ERW, LSAW

 Size (OD)

4 1/2", 5", 5 1/2", 6 5/8", 7", 7 5/8", 8 5/8", 9 5/8",
10 3/4", 13 3/8", 16", 18 5/8", 20", 30”

 Grade

 J55, K55, N80, L80-1, L80-9Cr, L80-13Cr,
C90, T95, P110, P110-13Cr, Q125

 API Connections

 Round thread(8tpi, STC and LTC),  Buttress thread
(5tpi, BTC) VAM equivalent, VAM top equivalent 
Hydril, Hunting, Tenaris, HSC, TP,HSM

 Premium Connections

 HSM, TP-CQ, RJS (compatible with VAM and HSC)

 Length range

 Range 1, 2, 3

 Technical modifications

 Special clearance; 
 For extra clearance applications Special bevel;  
 20°bevel
 Slotted (Screen casing)

 

 


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