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Integral heavy weight drill pipe
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Integral heavy weight drill pipe
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Integral heavy weight drill pipe
The integral heavy weight drill pipe is made of AIS14145H alloy steel in accordance with AP1 Specifications and SY/T5146 Standards through integral forging with the precision forging machine, integral thermal treatment with the well-type thermal treatment furnace and spray welding of wear-resistant band on joints at both ends and on the thickened section in the middle by using 100XT or 300XT wear-resistant materials authorized by American Arnco Technology Company. Threads can be processed with cold rolling, coppering or phosphating. Double-shoulder threads and other specifications of special threads can be processed.
● Mechanical properties
|
Yield strength |
Tensile strength |
δ4% Elongation |
Hardness (Brinell) |
AK(J) IMPACT VALUE (CHARPY-V) |
|
≧758 |
≧964 |
≧13 |
285-341 |
≧54 |
● Dimensional tolerance
|
C OD |
E ID |
L 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 |
● Dimensional specification
|
Specification |
C OD |
E ID |
Joint |
Body |
Kg Weight |
||||||
|
Style |
A OD |
DFmm Innerand outerthread |
Upse |
||||||||
|
mm |
in |
mm |
in |
mm |
in |
D mm Center |
Bmm Endarea |
||||
|
I type (9,300 mm long/pcs.), |
|||||||||||
|
ZH-JZ66-65/8FH-I |
168.3 |
65/8 |
114.3 |
41/2 |
65/8FH |
209.6 |
81/4 |
195.70 |
184.2 |
176.21 |
965 |
|
ZH-JZ55-51/2FH-I |
139.7 |
51/2 |
92.1 |
35/8 |
51/2FH |
177.8 |
7 |
170.7 |
152.4 |
144.5 |
730 |
|
ZH-JZ50-NC50-1 |
127.0 |
5 |
76.2 |
3 |
NC50 |
168.3 |
65/8 |
154.0 |
139.7 |
130.2 |
700 |
|
ZH-JZ45-NC46-I |
114.3 |
41/2 |
71.4 |
213/16 |
NC46 |
158.8 |
61/4 |
145.3 |
127.0 |
117.5 |
585 |
|
ZH-JZ40-NC40-I |
101.6 |
4 |
65.09 |
29/16 |
NC40 |
133.35 |
51/4 |
127.4 |
101.6 |
98.43 |
650 |
|
ZH-JZ35-NC38-I |
88.9 |
31/2 |
52.39 |
21/16 |
NC38 |
120.7 |
43/4 |
116.3 |
101.6 |
92.1 |
370 |
|
ZH-JZ29-NC31-I |
73.03 |
27/8 |
50.8 |
2 |
NC31 |
104.8 |
41/8 |
100.4 |
84.1 |
81.0 |
220 |
|
II type (13,500 mm long/pcs.) |
|||||||||||
|
ZH-JZ50-NC50-Ⅱ |
127.0 |
5 |
76.2 |
3 |
NC50 |
168.3 |
65/8 |
154.0 |
139.7 |
130.2 |
945 |
|
ZH-JZ45-NC46-Ⅱ |
114.3 |
41/2 |
71.4 |
213/16 |
NC46 |
158.8 |
61/4 |
145.3 |
127.0 |
117.5 |
790 |
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