API 5CT&5BCasing coupling from 4-1/2"-20"
API 5CT 9th Casing Coupling
Raw Material: API 5CT Seamless Steel Pipe
Usage: Well Drilling Machinery
Steel Grade: J55, K55, N80-1, N80-Q, L80-1, P110;
Size:4-1/2"-20"
Type: LTC, BTC, STC
Surface Treatment: Whole phosphating, or inside phosphating and outside coating
Packing: By carton, wooden case, wooden pallet, or by requirements of customers
Shape: Tubular
Brand: KW
Color: white on surface and black inside thread
Supply Ability: 20000pcs per month
Xi'an Kingwell Oilfield Machinery Co.,Ltd is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provide complete solutions.
With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, DST tools and Solid Control products.
KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation, our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices.
is a professional supplier for oilfield products according to the API standard. We exporting ALL KINDS OF OILFIELD MACHINERY AND TOOLS with super Quality and Competitive Price in CHINA.
Now, Our tubing and casing couplings have exported to USA, Canada, Egypt, India and UEA , etc with 40 FCL contaniers per month.Now, with high quality and short supply and good service, our couplings has got good reputation home and abroad Here we got some prise as follows.
All the detailed specification of casing couplings covering size 4-1/2"-20", grade K55, J55, P110, N80Q, L80-1, type of buttress thread, long round thread, short round thread as follow for your reference,
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The API couplings for Casing Size and Specifications
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![]() Descriptions and size
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Type of Thread
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O.D*L
(mm)
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Weight
(kg)
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Casing Coupling
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4-1/2"
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STC
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127.00*158.75
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5.23
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4-1/2"
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LTC
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127.00*177.80
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4.15
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4-1/2"
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BTC
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127.00*225.42
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4.55
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5"
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STC
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141.30*165.10
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4.66
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5"
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LTC
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141.30*196.85
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5.75
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5"
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BTC
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141.30*231.78
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5.85
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5-1/2"
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STC
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153.67*171.45
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5.23
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5-1/2"
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LTC
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153.67*203.20
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6.42
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5-1/2"
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BTC
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153.67*234.95
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6.36
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6-5/8"
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STC
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187.71*184.15
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9.12
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6-5/8"
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LTC
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187.71*222.25
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11.34
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6-5/8"
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BTC
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187.71*244.48
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11.01
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7"
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STC
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194.46*184.15
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8.39
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7"
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LTC
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194.46*228.60
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10.83
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7"
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BTC
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194.46*254.00
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10.54
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7-5/8"
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STC
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215.90*190.50
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12.30
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7-5/8"
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LTC
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215.90*234.95
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15.63
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7-5/8"
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BTC
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215.90*263.52
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15.82
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8-5/8"
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STC
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244.48*196.85
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16.23
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8-5/8"
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LTC
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244.48*254.00
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21.67
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8-5/8"
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BTC
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244.48*269.88
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20.86
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9-5/8"
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STC
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269.88*196.85
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18.03
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9-5/8"
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LTC
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269.88*266.70
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25.45
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9-5/8"
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BTC
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269.88*269.88
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23.16
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10-3/4"
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STC
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298.45*203.20
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20.78
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10-3/4"
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BTC
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298.45*269.88
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25.74
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11-3/4'
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STC
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323.85*203.20
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22.64
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11-3/4'
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BTC
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323.85*269.88
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28.03
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13-3/8"
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STC
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365.12*203.20
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25.66
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13-3/8"
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BTC
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365.12*269.88
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31.77
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16"
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STC
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431.80*228.6
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34.91
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16"
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BTC
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431.80*269.88
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40.28
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18-5/8"
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STC
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508.00*228.60
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51.01
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18-5/8"
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BTC
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508.00*269.88
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62.68
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20"
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STC
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533.40*228.6
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43.42
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20"
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LTC
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533.4*292.10
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57.04
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20"
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BTC
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533.40*269.88
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50.10
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Here some related tables of casing couplings to show you a technical parameter:
More photos about this products as for you reference,
Our Casing Couplings cover all API Standard scope from 4-1/2"-20" with strickly inspection, which all the goods should be checked one by one before packing. Euipped withthe world-class facilities and professional laboratory technicians, we pay more attention the quality of every products.
A well-established Quality System from Materials receipt to Products delivery ensures consistent quality at all levels of the activity. QMS Procedures & Measurements are tailored to establish high standards of Quality Assurance in the Operations. The Company maintains the 100% Traceability records as per API requirements&NACE MR 0175-2002 Standards and complies with all the legal, statutory and regulatory requirements.
Our general technicla process as follows,
Our standard export packaing is suitalble multimodal transportationby three kinds of packages: wooden pallets and irony pallet and box as bellow,
About delivery:
Generally, coupling are in stock, warehouse machine need 3 days delivery for paint and package, tell us: what colors u need. If every material is ready, 10 days finish the goods.
If material is not ready,30 days to delivery. Because we still have other order to do at the same time.
And we will sign 45 days in agreement; delivery time is usually in advance
About Logo:KW, we can produce according to customer requirements.
About Quality: All the products with API, low price are not -API, cannot be exported.
About Warranty: Warranty period is 1 year after installation.
About Payment: 30% of the advance payments, delivery time, please pay 70%.
About Ttechnical Documents:I submit the following accompanying technical information in English,
A: Test Report in accordance with the appropriate API or national test standards outline
B. Commerial Invoice
C: Original copy of quality certificate
D: Packing List
E: The chemical element ,Mechanical properties.
About Service:
We believe in Customer delight, achieved by the supply of Quality Products & Services and Continual Improvement in our Manufacturing Processes for timely delivery at competitive prices. We work in a professional, competitive, and cost-effective manner consistent with the Customer requirement.
Kindly let me know if you have any interest or enquiry about ourproducts. You are also always welcomed to come to our factory for a visit at your convinent time.
We will offer you a good price and show you our best service.
NOTE:
We have stocked 8-5/8"LC/K55 for 800 pcs.
