IMRI’s K55 tubing, made of high strength carbon steel, meets the strict API 5CT standard. With a yield strength of 379 ~ 552 MPa, it can withstand high pressure oil well environments.
- Tubing, Tubing & Casing Pipe
OCTG API 5CT K55 Tubing for Oil Well
Email:
sales@imristeel.com
Phone:
+86 13646172523
Quote Now
Product Detail
Packaging & Delivery
Related Products
Product Detail
Established in 1954, the factory has an annual capacity of up to 10 million tons. With five oil casing production lines, it can provide oil casing with OD 60.3mm-114.3mm, which strictly conforms to API 5CT standard. According to API 5B,we can provide BTC/LTC/STC threaded connections and equipped with Premium Threaded.
Manufacturing Process
API 5CT K55 is a steel pipe made by either a seamless process or an EW welding process.
Common EW processes include ERW and EFW.
ERW (Electric Resistance Welding) is typically used for tubes with thinner walls, while EFW (Electrofusion Welding) is used for tubes with thicker walls, which are able to withstand higher pressures.
Coupling materials, coupling blanks and coupling materials must be manufactured using a seamless process.
Quick Details
Standard:
API 5CT/5B
Grade:
K55
Thickness:
2.9-60mm
section shape:
Round
Outer Diameter:
Ф60.3-114.3
Place of origin:
Baotou, China(Mainland)
Function:
Transportation of oil and gas
Technique:
Hot Rolled, Seamless
Certification:
API 5CT/5B
Surface Treatmen:
According to customers request
Alloy Or Not:
No
Type:
EU NU
Supply Ability:
( 180.0000 )Ton/Tons per year
Installation Position:
Center of casing cavity
Sealing Pressure:
≥5,000 psi
Brand:
Baotou steel
Application:
Medium and low pressure oil and gas Wells
Risk of failure:
Corrosion Perforation; Thread Leakage; Wax Plugging
Chemistry Component
| Grade | C | Mn | Mo | Cr | Nb | Ni | Cu | P | S | Si | ||||
| min | max | min | max | min | max | min | max | max | max | max | max | max | max | |
| J55 | — | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| N80-1 | — | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| N80Q | — | — | — | — | — | — | — | — | — | — | — | 0.030 | 0.030 | — |
| L80 – 1 | — | 0.43a | — | 1.90 | — | — | — | 1.50 | — | 0.25 | 0.35 | 0.030 | 0.030 | 0.45 |
| L80 – 9Cr | — | 0.15 | 0.30 | 0.60 | 0.90 | 1.10 | 8.00 | 10.0 | — | 0.50 | 0.25 | 0.020 | 0.010 | 1.00 |
| L80 – 13Cr | 0.15 | 0.22 | 0.25 | 1.00 | — | — | 12.0 | 14.0 | — | 0.50 | 0.25 | 0.020 | 0.010 | 1.00 |
| C90 | — | 0.35 | — | 1.20 | 0.25b | 0.85 | — | 1.50 | — | 0.99 | — | 0.020 | 0.010 | — |
| P110 | — | — | — | — | — | — | — | — | — | — | — | 0.030e | 0.030e | — |
Tensile test requirements
| Grade | Total Elongation Under Load % | Yield Strength MPa | Tensile Strength min MPa | |
| min | max | |||
| J55 | 0.5 | 379 | 552 | 517 |
| N80-1 | 0.5 | 552 | 758 | 689 |
| N80Q | 0.5 | 552 | 758 | 689 |
| L80 – 1 | 0.5 | 552 | 655 | 655 |
| L80 – 9Cr | 0.5 | 552 | 655 | 655 |
| L80 – 13Cr | 0.5 | 552 | 655 | 655 |
| N80-1 | 0.5 | 552 | 655 | 655 |
| C90 | 0.5 | 621 | 724 | 689 |
| P110 | 0.6 | 758 | 965 | 862 |
Color Discrimination
| Grade | Type | Straps for products longer than 1.8 meters Quantity and color | Coupling color | |
| The whole coupling | Brand | |||
| H40 | No belt or black belt, to be selected by the manufacturer | not have | Same as for the pipeline | |
| J55 | A sea of green | Bright green | not have | |
| K55 | Two emerald green | Bright green | not have | |
| N80 | 1 | One red | red | not have |
| N80 | Q | One is red, the other emerald green | red | green |
| R95 | One brown | brown | not have | |
| L80 | 1 | One red, one brown | red | One brown |
| L80 | 3Cr | One red and one white | red | One white |
| L80 | 9Cr | One red, one brown, two yellow | not have | Two yellows |
| L80 | 13Cr | One red, one brown and one yellow | not have | One yellow |
| C90 | A purple one | purple | not have | |
| T95 | One silver | silvery | not have | |
| C110 | One white, two brown | white | Two brown | |
| P110 | One white | white | not have | |
| Q125 | One orange | orange | not have | |
Packaging & Delivery
Packaging & Delivery
· Thread: Screwing Plastic thread retainer + applying thread grease
· Pipe End: Covered HDPE crash cap (embedded foam cushion)
· Packing: Steel strapping in hexagonal bundles or as per customer’s request .(as pictures)
· Pipe End: Covered HDPE crash cap (embedded foam cushion)
· Packing: Steel strapping in hexagonal bundles or as per customer’s request .(as pictures)
Packaging & Shipping
· Minimum order quantity: 5 tons
· Price: FOB at Xin’gang port in Tianjin or CIF or CFR
· Payment: 30% deposit in advance, the balance against the copy of B/L; or 100% L/C, etc
· Lead Time: within 10-25 workdays normally
· Sample: Free sample is available.
· Price: FOB at Xin’gang port in Tianjin or CIF or CFR
· Payment: 30% deposit in advance, the balance against the copy of B/L; or 100% L/C, etc
· Lead Time: within 10-25 workdays normally
· Sample: Free sample is available.
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