Products

CRA Pipe

9%,13%,28% Chromium grades and corrosion Resistant Alloys(CRA)
L80-13Cr，C95-13Cr，P110-13Cr
CRA Pipe is applicated in the deep well environment containing CO2.

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Description

China Vigor Drilling Oil Tools And Equipment Co., Ltd. is one of the most professional manufacturers and suppliers of cra pipe in China, featured by competitive price and fast delivery. Welcome to buy high quality cra pipe in stock here from our factory.

VIGOR CRA Pipe provides superior corrosion resistance and exemplary performance characteristics that make it the product of choice for the oil and gas industry. Manufactured by VIGOR, a leading supplier of high-quality pipes, our products enable enhanced safety, reliability, and longevity in demanding operating environments.

① 9%,13%,28% Chromium grades and Corrosion Resistant Alloys(CRA)

※9% Chromium Steel: Medium alloy martensitic stainless steel.

They can provide a balance between cost and mechanical properties while offering moderate corrosion resistance.

※13% Chromium Steel: Known as 410 martensitic stainless steel.

It is more corrosion-resistant than the lower chromium martensitic and is used where strength and moderate corrosion resistance are required corrosion resistance.

Common applications include valves, pump parts, and some petrochemical equipment where higher corrosion resistance is needed than that provided by 9% Cr steels.

② In the API 5CT standard, the steel grades for casing and tubing are divided into four groups according to the application environment. Our company can supply the second group including L80-13Cr and C90, as well as the third group covering P110-13Cr:

※The second group (restricted yield strength, suitable for casings in environments resistant to hydrogen sulfide stress or carbon dioxide corrosion): M65, L80-1, L80-9Cr, L80-13Cr, C90, T95, C110

※The third group (high-strength casing): P110;

③ Manufacturing process for 13Cr series

Each step of VIGOR's production process is strictly checked.

Forging, billet (peeling, centering) --Heating-- Piercing--Continuous rolling-- Sizing--Cooling--Cutting head--Send for heat treatment

Quenching--Tempering--Heat sizing--Heat straightening--Shot blasting--Nondestructive testing (Flaw detection)--Hydrostatic testing--Thread processing--Inspection--Packaging

The main purpose of heat treatment for corrosion-resistant alloys is to improve their mechanical, physical, and chemical properties, enhancing their corrosion resistance and service life. The heat treatment process can eliminate internal stresses in the material, improve its ductility and toughness, and make it more resistant to corrosion in practical use.

Key features and benefits of VIGOR CRA Pipe

High strength and toughness
Excellent corrosion resistance
Outstanding resistance to cracking and thermal fatigue
High-temperature strength and creep resistance
Low coefficient of thermal expansion
Non-magnetic options available
Superior weldability and fabricability
Suitable for cryogenic to elevated temperature services
Complies with NACE MR0175/ISO 15156, MR0103, and ASME standards

With the capability to customize alloys, dimensions, testing, certification, and logistics, VIGOR provides CRA piping solutions tailored to your unique requirements.

Applications

CRA Pipe is applied in the deep well environment containing CO2.

① Mostly, when the partial pressure of CO2 is more than 30psi and high corrosion rates are raised, Steel grades alloyed with high contents of Chromium, Molybdenum, and Nickel are effective in resisting corrosion.

② 13Cr Steel OCTG Pipe made with 13% Chromium (13Cr) is the least expensive corrosion-resistant alloy (CRA) tubular that can be used to combat C02 corrosion and H2S environmental cracking without inhibitor treatment. These stainless steel tubulars cost only half as much as duplex stainless steel and one-fourth to one-tenth as much as high-nickel CRA materials. Using 13Cr Steel OCTG Pipe might also be less expensive and more cost-effective than using carbon/low-alloy steel with inhibition.

③ The 13Cr Steel OCTG Pipes are especially attractive for tubing applications in offshore production operations where working space is limited and workover costs are high.

④ Tubulars made with 13% Cr have been widely used in North America, the North Sea, the Gulf of Mexico, and the North Slope of Alaska.

⑤ 13Cr steel is susceptible to corrosion at high temperatures, to sulfidestress cracking (SSC) in moderate to high H2S environments, and to crevice corrosion. Therefore, the application of 13Cr Steel OCTG Pipe does require precautions in the tubular design, procurement, handling, storage, and field operations.

FAQ

Q: Can you provide full material traceability and certification?

A: Yes, our quality management system provides full material traceability from melt to final delivery. All required material certifications are provided per order requirements including mill certificates.

Q: How do you package and ship pipe?

A: To prevent damage in transit, we package pipes in wooden crates or metal boxes. For marine transport, a pipe is sealed in vapor corrosion inhibitor bags or coatings. Shockwatch indicators track handling. We coordinate all required logistics.

Q: What inspection and testing capabilities do you offer?

A: Chemical analysis, mechanical testing, microstructure validation, hydrostatic testing, ultrasonic examination, magnetic particle examination, visual inspection, and more.

If you are looking for competitive, high quality, and fast delivery oilfield pipe in stock, or if you are planning to buy CRA Pipe API from one of the leading corrosion-resistant alloy pipes, CRA lined pipes manufacturers and suppliers in China, please feel free to contact VIGOR.

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