API 5CT
Oil casing
Standard: API SPEC 5CT
Grade: J55, K55, L80, N80, C95, P110
O. D. Range Tubing: From 2-3/8 to 4-1/2"(EUE/NU)
Casing: From 4-1/2" to 20
Threads: BTC, LTC, STC
Length range: R1, R2, R3
Download More Details about API 5CT casing
Main materials of octg pipe : X42, X46, X56, X65, X70, and so on. In extreme high temperature and high pressure environment, the material of the casing pipe has its own unique natural advantages. Api5ct casing from raw materials to products manufactured prior to flattening test, tensile testing, impact testing, tensile testing and other related testing and inspection.
| Chemical composition (Max%) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grade | Mfg.Process | Technique | C | Si | Mn | P | S | Ni | Cr | Mo | Others | |
| J55 | SMLS | Hot rolled/Cold drawn | - | - | - | 0.030 | 0.030 | - | - | - | - | |
| N80 | - | - | - | 0.030 | 0.030 | - | - | - | - | |||
| K55 | - | - | - | 0.030 | 0.030 | - | - | - | - | |||
| L80 | 0.43 | 0.45 | 1.90 | 0.030 | 0.030 | 0.25 | - | - | Cu 0.25 | |||
| P-110 | - | - | - | 0.030 | 0.030 | - | - | - | - | |||
| C90 | 0.35 | - | 1.00 | 0.20 | 0.010 | 0.99 | 1.20 | 0.75 | - | |||
| C95 | 0.45 | 0.45 | 1.90 | 0.030 | 0.030 | - | - | - | - | |||
| T95 | 0.35 | - | 1.20 | 0.20 | 0.010 | 0.99 | 0.40~1.50 | 0.25~0.85 | - | |||
API 5CT J55 oil special pipe Chemical Composition and Mechanical Property
| Steel Grade | C | Mn | Mo | Cr | Ni max | Cu max | P max | S max | Si max | |
| Steel Name | Type | |||||||||
| J55 | - | - | - | - | - | - | - | 0.030 | 0.030 | - |
| Steel Grade | Yield strength (MPa) | Tensile strength (MPa) | Hardness(max) | Specified wall thickness (mm) | Allowed hardness change (HRC) | ||
| Steel Name | Type | HRC | HBW/HBS | ||||
| J55 | - | 379-552 | ≥517 | - | - | - | - |
API 5CT H40 oil special pipe Chemical Composition and Mechanical Property
| Steel Grade | C | Mn | Mo | Cr | Ni max | Cu max | P max | S max | Si max | |
| Steel Name | Type | |||||||||
| H40 | - | - | - | - | - | - | - | 0.030 | 0.030 | - |
| Steel Grade | Yield strength (MPa) | Tensile strength (MPa) | Hardness(max) | Specified wall thickness (mm) | Allowed hardness change (HRC) | ||
| Steel Name | Type | HRC | HBW/HBS | ||||
| H40 | - | 276-552 | ≥414 | - | - | - | - |
API 5CT C95 oil special pipe Chemical Composition and Mechanical Property
| Steel Grade | C | Mn | Mo | Cr | Ni max | Cu max | P max | S max | Si max | |
| Steel Name | Type | |||||||||
| C95 | - | ≤0.45 | ≤1.90 | - | - | - | - | 0.030 | 0.030 | 0.45 |
| Steel Grade | Yield strength (MPa) | Tensile strength (MPa) | Hardness(max) | Specified wall thickness (mm) | Allowed hardness change (HRC) | ||
| Steel Name | Type | HRC | HBW/HBS | ||||
| C95 | - | 655-758 | ≥724 | - | - | - | - |
API 5CT C90 oil special pipe Chemical Composition and Mechanical Property
| Steel Grade | C | Mn | Mo | Cr | Ni max | Cu max | P max | S max | Si max | |
| Steel Name | Type | |||||||||
| C90 | 1 | ≤0.35 | ≤1.00 | 0.25-0.75 | ≤1.20 | 0.99 | - | 0.020 | 0.010 | - |
| C90 | 2 | ≤0.50 | ≤1.90 | NL | NL | 0.99 | - | 0.030 | 0.010 | - |
| Steel Grade | Yield strength (MPa) | Tensile strength (MPa) | Hardness(max) | Specified wall thickness (mm) | Allowed hardness change (HRC) | ||
| Steel Name | Type | HRC | HBW/HBS | ||||
| C90 | 1、2 | 621-724 | ≥689 | 25.4 | 255 | ≤12.70 | 3.0 |
| C90 | 1、2 | 621-724 | ≥689 | 25.4 | 255 | 12.71-19.04 | 4.0 |
| C90 | 1、2 | 621-724 | ≥689 | 25.4 | 255 | 19.05-25.39 | 5.0 |
| C90 | 1、2 | 621-724 | ≥689 | 25.4 | 255 | ≥25.4 | 6.0 |
API 5CT casing anti-corrosion treatment is higher than other product requirements, not only for product protection, increased service life, it is the guarantee of product safety. API 5CT steel pipe weld we can process, the same welding process can be carried out fully according to your requirements. Below is our company in welding and corrosion resistance of products are introduced.
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