Tubing and casing pipe
Tubing is used to extracting petroleum and natural gasfrom a well.
Product description
STANDARD:
API SPEC 5CT、API SPEC 5B、ISO 11960
APPLICATION:
Tubing is used to extracting petroleum and natural gasfrom a well.
Casing serves as walls of well.
TECHNOLOGYDATA:
Tolerance
| ltem | Tolerance | |
| Outside Diameter | Pipe Body | D≤101.60mm±0.79nn |
| D≥114.30mm+1.0%D-,5%D | ||
| Coupling | ±1%D | |
| Wall Thickness | 0,-12.5%t | |
| Weight | Single Lengths | +6.5%-3.5% |
| Carload Lots | 0,-1.75% | |
Mechanical Properties
| Grade | Yield Strength | Tenslle strength | Hardness | Allcwable Hardness Variation | |||||
| min | max | min | max | ||||||
| Psi | Mpa | Psi | Mpa | Psi | Mpa | Hrc | Bhn | Hrc | |
| J55 | 55000 | 379 | 80000 | 552 | 75000 | 517 | – | – | – |
| K55 | 55000 | 379 | 80000 | 552 | 95000 | 655 | – | – | – |
| N80 | 80000 | 552 | 80000 | 758 | 100000 | 689 | – | – | – |
Chemical Composition%
| Grade | Chemical Composition% | |||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | V | Als | |
| J55/K55 | 0.34- | 0.20- | 1.25- | ≤ | ≤ | ≤ | ≤ | ≤ | ≤ | |
| (37Mn5) | 0.39 | 0.35 | 1.50 | 0.020 | 0.015 | 0.15 | 0.20 | 0.20 | 0.020 | |
| N80 | 0.34- | 0.25- | 1.45- | ≤ | ≤ | ≤ | ≤ | ≤ | ≤ | |
| (36Mn2V) | 0.38 | 0.40 | 1.70 | 0.020 | 0.015 | 0.15 | 0.20 | 0.20 | 0.11-0.16 | 0.020 |
Length
| (Range 1) | (Range 2) | (Range 3) | |
| Tubing | 6.10-7.23m | 8.53-9.75m | 11.58-12.80m |
| Casing | 4.88-7.62m | 7.62-10.36m | 10.36-14.63m |
| Pup Joint | 0.5m-6.0m(2 FEET-20 FEET) | ||