Hexagonal Kelly
Kelly is located in the top of the drill string, with square and hexagonal.In rotary drilling, when it is drilling, kelly connected with square bushing and rotary bushing, transferthe ground rotary torque to Heavy Weight Drill Pipeand to drive the drill bit,bearingthe weight of the drill string.In the drilling of the turbine and screw, the weight of the drill string and the counter torque are supported.
We are a square Kelly manufacturerin China, our company has 2 sucker rod workshops, 3 production lines. We guarantee on-time delivery, No middleman!
Square Kelly Specification:
|
Specification |
Drive part length |
Overall length |
Drive part |
Upper internal threaded joint |
Lower external threaded joint |
Inner diameter |
|||||||||||||||||
|
StandardLD |
SelectionLD |
Standard |
Selection |
Square sizeDFL |
Across cornerDC |
Across cornerDCC |
RadiusRC |
RadiusRCC |
Eccentric hole minimum wall thickness |
Screw thread specification and left rotate type |
Outside diameter |
Chamfering diameter |
Thread specification and type |
Outside diameterDLR |
LengthLL |
Chamfering diameterDF |
|||||||
|
Standard |
Selection |
Standard |
Selection DU |
length LU |
Standard DF |
Selection DF |
|||||||||||||||||
|
（2½） |
11280 |
12190 |
（65/8）REG |
(4½)REG |
NC26(23/8IF) |
508 |
|||||||||||||||||
|
3 |
11280 |
12190 |
100 |
（65/8）REG |
(4½)REG |
NC31(27/8IF) |
508 |
||||||||||||||||
|
（3½） |
11280 |
12190 |
（65/8）REG |
(4½)REG |
NC38(3½IF) |
508 |
|||||||||||||||||
|
108 |
（4¼） |
11280 |
15540 |
12190 |
16460 |
108 |
（65/8）REG |
(4½)REG |
NC46(4IF) |
508 |
|||||||||||||
|
108 |
（4¼） |
11280 |
15540 |
12190 |
16460 |
108 |
（65/8）REG |
(4½)REG |
NC50(4½IF) |
508 |
154 |
||||||||||||
|
（5¼） |
11280 |
15540 |
12190 |
16460 |
（65/8）REG |
5½FH |
508 |
||||||||||||||||
|
（5¼） |
11280 |
15540 |
12190 |
16460 |
（65/8）REG |
NC56 |
508 |
||||||||||||||||
Hexagonal Kelly Specification mm（in):
|
Specification |
Drive part lengthти длины |
Overall length |
Drive part |
Upper internal threaded joint |
Lower external threaded joint |
Inner diameter |
|||||||||||||||||
|
StandardLD |
SelectionLD |
Standard |
Selection |
Square sizeDFL |
Across cornerDC |
Across cornerDCC |
RadiusRC |
RadiusRCC |
Eccentric hole minimum wall thickness |
Screw thread specification and left rotate type |
Outside diameter |
Chamfering diameter |
Thread specification and type |
Outside diameterDLR |
LengthLL |
Chamfering diameterDF |
|||||||
|
Standard |
Selection |
Standard DC |
Selection DU |
length LU |
Standard DF |
Selection DF |
|||||||||||||||||
|
（2½） |
11280 |
12190 |
（65/8）REG |
(4½)REG |
NC26(23/8IF) |
508 |
|||||||||||||||||
|
3 |
11280 |
12190 |
100 |
50 |
（65/8）REG |
(4½)REG |
NC31(27/8IF) |
508 |
|||||||||||||||
|
（3½） |
11280 |
15540 |
12190 |
16460 |
108 |
（65/8）REG |
(4½)REG |
NC38(3½IF) |
508 |
||||||||||||||
|
108 |
（4¼） |
11280 |
15540 |
12190 |
16460 |
75 |
（65/8）REG |
- |
- |
- |
NC46(4IF) |
508 |
|||||||||||
|
108 |
（4¼） |
11280 |
15540 |
12190 |
16460 |
75 |
（65/8）REG |
- |
- |
- |
NC50(4½IF) |
508 |
154 |
||||||||||
|
（5¼） |
11280 |
15540 |
12190 |
16460 |
173 |
（65/8）REG |
- |
- |
- |
5½FH |
508 |
||||||||||||
|
（5¼） |
11280 |
15540 |
12190 |
16460 |
173 |
（65/8）REG |
- |
- |
- |
NC56 |
508 |
||||||||||||
|
Steel Mark |
Chemical Composition% |
||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Al |
|
|
4145H |
|
≤0.03 |
≤0.03 |
|
≤0.2 |
|
|||
|
Other Elements：N≤0.015，Ni≤0.5 |
|||||||||
Mechanical Property:
|
Mechanical Property |
||||||||
|
Outside Diameter Range |
Yield Strength |
Tensile Strength |
ElongationA% |
HB |
Charpy impactAkv J |
|||
|
mm |
in |
MPa |
Psi |
MPa |
Psi |
|||
|
3-1/8～6-3/4 |
≥758 |
≥110000 |
≥965 |
≥140000 |
≥13 |
285～341 |
≥54 |
|
7 |
≥689 |
≥100000 |
≥930 |
≥135000 |
≥13 |
285～341 |
≥54 |
|
|
Under special conditions, the impact work of the charpy can be determined as greater than 70J according to the supply and demand |
||||||||
在线联系供应商
Other supplier products
 |
Api Solid Sucker Rods | If you have any question on Grade Hy Sucker Rodand Api Solid Sucker Rods. We will give the professional answers to your short questions. Grade HY S... |
 |
3/4\\\\\\\\ | Spray Polished Rod Function of Polish Rod Polish rodis a kind of special sucker rod connected with sucker rod and beam hanger. It is at the top o... |
 |
Stainless steel polished rod | Spray Polished Rod Function of Polish Rod Polish rodis a kind of special sucker rod connected with sucker rod and beam hanger. It is at the top o... |
 |
API grade d sucker rod | Grade D Sucker Rodwith chinese manufactuer API grade d sucker rod Hot sale various high quality Grade D Sucker Rod and 1" Grade D sucker rod from C... |
 |
"Rebirth door" for scrapped rod | "Rebirth door" for scrapped rod The following shared by. What process does a discarded rod use to make it new and usable? A few days ago,4 Nigerian... |
