| After-sales Service: | Yes |
|---|---|
| Warranty: | 1 Year |
| Manufacturing Process: | CNC Milling |
| Surface Treatment: | Galvanized |
| Material: | Alloy |
| Transport Package: | Wooden Case |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier The Casing Coupling conforms to API Specification 5ct and other related standards,Having been anthorized to use the API monogram.
Casing coupling is for the dimensions more than 4 1/2 inch. Differently than tubing coupling , casing coupling normally does not need to be thickened (Non-upset), which means no upset casing coupling, so it has following types:
• Round thread
• LTC/LC: Long round thread casing coupling
• STC/SC: Short round thread casing coupling
Buttress thread • BTC/BC: Buttress thread casing coupling
API 5CT Long Thread Connection Ltc Casing Coupling
1) Material: Steel, Stainless Steel, Alloy
2) Connection: STC, LTC, BTC for casing coupling
3) Standard: API 5CT
4) API and ISO certified
5) Grade: J-55, C-75, L-80, N-80, C-95, P-110
|
Casing coupling specifications |
OD mm |
Min length mm |
Weight kg |
||
|
short-thread |
long-thread |
short-thread |
long-thread |
||
|
4 1/2 |
127 |
158.75 |
177.8 |
3.62 |
4.15 |
|
5 |
141.3 |
165.1 |
196.85 |
4.66 |
5.75 |
|
5 1/2 |
153.67 |
171.45 |
203.2 |
5.23 |
6.42 |
| CASING COUPLING | OD | 42.16-508 MM. |
| Thread type | NU, EU, BTC, STC, LTC. | |
| material | H40, J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, P110, Q125, etc. | |
| Type | Seamless Pipe. |
Performance of Internal Epoxy Coating
| Inspection Item | Standard | Inspection Method | ||
| 1 | Appearance | Smooth, Uniform color, no bubble, no cracking or contraction cavity, little range peel allowed | Visual | |
| 2 | Thermal Performance |ΔT g|(ºC ) | ≤ 5 | Appendix B | |
| 3 | cathodic disbanding resistance | ≤ 6.5 | Appendix C | |
| 24h or 48h (mm) | ||||
| 4 | Bonding surface porosity | 1~4 | Appendix D | |
| 5 | The section void ratio | 1~3 | Appendix D | |
| 6 | resistance to deflection 3° | No cracking | Appendix E | |
| 7 | Impact Energy (8J) | No pin hole | Appendix F | |
| 8 | Adhesive force | dissection method | 1~2 | Appendix G |
| pull off adhesion (MPa) | ≥ 20 | GB/T 5210 | ||
| 9 | Electric strength (MV/m) | ≥ 30 | GB/T 1408.1 | |
| 10 | Volume resistivity(Ω·m ) | ≥ 1×1013 | GB/T 1410 | |
| 11 | Salt fog resistance (1000h) | No change of anti-corrosion coating | GB/T 1771 | |
Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, ISO45001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.
Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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Audited Supplier 
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