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CT110 API Flexible Stainless 5ST Alloy Steel Coiled Tubing

Minimum Order Quantity : 1 reel Price : Negotiable
Packaging Details : Wooden reels or metal spool Delivery Time : 10 days
Payment Terms : T/T Supply Ability : 3000 tons per month
Place of Origin: China Brand Name: TIPTOP
Certification: ISO Model Number: 3/4 " ~ 3 1/2"

Detail Information

Material: CT70/CT80/CT90/CT100/CT110 Standard: API 5ST
Application: Pumping/Logging /Umbilical Cable/ Concentric Coiled Tubing Working Pressure: 69 MPa/ 103.5 MPa
High Light:

69 MPa API 5ST Alloy Steel CT110


Pumping API 5ST CT110


flexible API 5ST Coiled Tubing

Product Description

API Spec 5ST Conventional Stainless Coiled Tubing Flexible Tubing


Coiled tubing, also known as flexible tubing or CT, is a long continuous string of tubing spooled on a large reel. Normally it is made from low carbon alloy steel and ranges in diameter from 8 feet to 12feet. Coiled tubing can be straightened prior to being inserted into the wellbore and recoiled to spool back on the reel later.


The reason why CT is enjoying more popularity both home and abroad is that it has the following benefits:

e and high operating efficiency

Fewer personnel needed at the site

Easy to operate and save cost

Smaller environmental footprint

Constantly pumping fluids through when running and retrieving the coil


Our company is specialized in the production of coiled tubing of various materials and specifications, products in line with the industry's highest standards. Equipped with rich industry experience and mature production lines, our products are exquisite in workmanship and advanced in technology. Complete in size and specification, our tube can meet various operating conditions.


Our conventional coiled tubing raw material has low content of sulfur and phosphorus, uniform microstructure, suitable mechanical properties, the flexion ratio of steel coil is lower than 0.80, and the strength performance difference of different parts is within 50MPa. All mechanical properties meet API Spec 5ST specification and have excellent fatigue resistance.


The steel grade and size information covered are as follows:

Type: Conventional coiled tubing(CT)

Advantages: high-strength, excellent fatigue resistance.

Reference material: CT70 CT80 CT90 CT110 CT110

Standard: API Spec 5ST

OD: 3/4 " ~ 3 1/2" (19.1 mm to 88.9 mm)

Thickness: 0.075 " ~ 0.3" (1.9mm~7.6mm)


Users can choose the required material and steel grade according to the operating conditions. The dimensions can be customized according to API Spec 5ST or user requirements.


Chemical composition requirements for carbon steel low alloy steel coiled tubing

Chemical Composition (%)
Material standard C Mn P S Si
CT70 API 5ST 0.16 1.20 0.025 0.005 0.50
CT80 0.16 1.20 0.020 0.005 0.50
CT90 0.16 1.20 0.020 0.005 0.50
CT100 0.16 1.65 0.025 0.005 0.50
CT110 0.16 1.65 0.025 0.005 0.50


Mechanical properties of carbon steel and low alloy steel coiled tubing


Grade Min. Yield strength Max. Yield strength Min. Tensile strength Max. hardness HRC
psi Mpa psi MPA psi Mpa tube body &weld seam
CT70 70,000 (483) 80,000 552 80,000 552 22
CT80 80,000 (552) 90,000 620 88,000 607 22
CT90 90,000 (620) 100,000 689 97,000 669 22
CT100 100,000 (689)     108,000 758 28
CT110 110,000 (758)     115,000 793 30



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