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Integral heavy weight drill pipe

                                                                         

Integral heavy weight drill pipe is made from AISI 4145H alloy steel.acc.to API Spec.7 and SY/T5144.It is formed by hot forged and fully-threated. HWDP’s wear resistance hardbanding is standard on tool joints connections and central upset.The types of hardbanding include Arnco 100XT and 300XT.All threads are phosphated,copperized or cold worked.All connections are equipped with pressed steel thread protectors.All threads are machined with CNC Lathes-Doub-le-shouldered and special threads.

Size

 

Size OD
C
ID
E
Connection Body Weight(kg/pc)  
style OD
A
DFmm
Inner and outer thread
Upset  
Center area
Dmm
End area
Bmm
 
mm in mm in  
I type(9300mm)  
ZH-JZ55-51/2FH-I 139.7 5 1/2 5 1/2FH 92.1 3 5/8 170.7 152.4 144.5 730  
ZH-JZ50-NC50-I 127.0 5 NC50(4 1/2IF) 76.2 3 154.0 139.7 130.2 700  
ZH-JZ45-NC46-I 114.3 4 1/2 NC46(4IF) 71.4 2 13/16 145.3 127.0 117.5 585  
ZH-JZ35-NC38-I 88.9 3 1/2 NC38 52.39 2 1/16 116.3 101.6 92.1 370  
II type(13500mm)  
ZH-JZ50-NC50-II     NC50(4 1/2IF) 165.1 6 1/2 154.0 139.7 130.2 945  
ZH-JZ45-NC46-II     NC46(4IF) 158.8 6 1/4 145.3 127.0 117.5 790  

 

Mechanical property

 

Yield strength
σ0.2
Tensile strength
σb
Elongation
δ4(%)
HB Impact value(charpy-v)
AKV(J)
≥758 ≥964 ≥13 285341 ≥54

Tolerances

 

OD ID Length DF
Chamfer
A
Inner and outer thread connection
Upset
D B
±0.8 ±1.60 ±150 ±0.4 ±0.8 ±0.75%D +0.8
0

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Skype : weinindustry2004
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Room1403, A Building(10#),Jincheng Oriental International, CBD Neihuan Road, Zhengdong New District, Zhengzhou, P.R.China
 

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Integral heavy weight drill pipe
Published in:2012-10-10 16:48
       (1).Standard:API Spec.7 and SY/T5146
       (2).Material:AISI 4145H alloy steel
       (3).Size:2 7/8”-6 5/8”
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