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 |
Send product request
Other supplier products
China Sucker Rod | Spray Anti-corrosion Sucker Rod It is a kind of manufacturability anti-corrosion sucker rod, the rod surface spraying a layer of special anti-corro... | |
Sucker Rod Coupling Class T | Sucker Rod CouplingClass T Our company producedClass T Coupling,subcouplingand spray coupling, they are design according to API Spec 11 Bstandard.... | |
Grade D Sucker Rod Φ16(5/8") | Grade D Sucker Rod Hot sale various high quality Grade D Sucker Rod and 1" Grade D sucker rod from China leading manufacturer. Our products are eff... | |
Sucker rod for sale | shares that in oil drilling, a drill tool is used to break up rock and drill into the ground to drill holes of specified depth for oil or gas produ... | |
China Sucker Rod | Spray Anti-corrosion Sucker Rod It is a kind of manufacturability anti-corrosion sucker rod, the rod surface spraying a layer of special anti-corro... |
Same products
Rubber Wax | Seller: King Honor International | Rubber wax Microcrystalline wax is widely used in rubber products with natural rubber and synthe... | |
Wax Emulsion | Seller: King Honor International | What is wax emulsion Paraffin wax emulsion is a multi-phase emulsion in which materials such as ... | |
Paraffin Wax Emulsion PWE 60S | Seller: King Honor International | With a high transparency and gloss level, Paraffin Wax Emulsion PWE 60S is an excellent choice of... | |
Paraffin Wax Emulsion PWE 50SA | Seller: King Honor International | Polyethylene wax emulsion formulationPWE 50SA is a high transparency, high gloss emulsified paraf... | |
Microcrystalline Wax | Seller: King Honor International | Microcrystalline wax is obtained from petroleum distillation residual heavy fractions by solvent ... |