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OCTG 5″ 18# 28CR-110 VAM TOP R3

The 5″ 18# 28CR-110 VAM TOP R3 tubing is built for tough HPHT and sour service conditions, featuring Alloy 28 (UNS N08028) for outstanding corrosion resistance in H₂S-rich and chloride-bearing environments up to 350°F. With high strength, excellent resistance to pitting and crevice corrosion, and a proven VAM TOP premium connection, this OCTG solution meets MR0175/ISO15156 standards for reliable performance in critical downhole applications. Ideal for sour wells, AGI, and other high-demand operations.

Available Quantity

2,093

FT

Condition

Unused

Mill Year

2014

Manufacturer

CRA Finished Tubes

Location

Texas, USA

Submit Inquiry

What is PipeFacts?

Field Inspection

Completed!

Receiving Inspection

Completed!

Final Inspection

In Progress

Certified Report

Not Started

Receiving Inspection Complete!

During this phase of PipeFacts™, material is received into one of our regional storage and inspection hubs, and we put material through a more detailed inspection. Our teams of inspectors inspects the pipe body for traceability and potential body defects and inspects the threads while a quality team in the office evaluates the as produced specification of the material test reports (MTRs).

What is

Receiving Inspection

?

100%
  • Visual Body Inspection (VBI)
  • Tally
  • Traceability to MTRs
5%
  • Visual Thread Inspection
  • Drift

Size

Nominal OD

5

in.

Nominal ID

4.276

in

Nominal Wall Thickness

0.362

in

Drift

4.151

in

Special Drift

—

in

Strength

Minimum Yield Strength

110

KSI

Minimum Ultimate Tensile Strength

120

KSI

Collapse Pressure

13,470

PSI

Internal / Burst Pressure

13,940

PSI

Disclaimer: The burst and collapse figures displayed are based on the API dimension tolerance of 87.5% of nominal wall thickness. Note that martensitic, duplex, super duplex, and nickel alloys often have tighter dimensional tolerances, therefore, increased strength ratings. The properties do not factor connection performance ratings. If your application requires more information ratings, please contact our technical services team, and we happily assist you.

Alloy

28CR

Family

Nickel Alloy

Corrosion Resistance Level

High

Alloy Description

28 Chrome (UNS N08028), also known as Alloy 28, is a cold-hardened nickel-based alloy designed for corrosion resistance in highly sour (H2S) environments with moderate chloride levels, providing high strength up to 350°F.

Compared to stainless steels, 28 Chrome offers superior resistance to the effects of H2S, making it suitable for use in downhole tubular components, packers, and other subsurface equipment in sour wells with high-pressure, high-temperature (HPHT) conditions, as well as in Acid Gas Injection (AGI) wells. It also exhibits exceptional resistance to pitting and crevice corrosion in environments with chlorides. However, it is crucial to assess all environmental factors, such as H2S, CO2, temperature, pH, and chloride concentrations, before selecting the appropriate material.

The alloy is classified as a type 4c alloy in MR0175/ISO15156, with no limitations for H2S partial pressure below 270°F and resistance to 200 psi H2S at 350°F.

Elemental Composition

C
6
Carbon
0.03%
Si
14
Silicon
1%
P
15
Phosphorus
0.03%
S
16
Sulfur
0.03%
Cr
24
Chromium
26%‒28%
Mn
25
Manganese
2.5%
Fe
26
Iron
30.51%‒40.9%
Ni
28
Nickel
29.5%‒32.5%
Cu
29
Copper
0.6%‒1.4%
Mo
42
Molybdenum
3%‒4%

Name

VAM TOP

Licensee

VAM

Category

Premium

Thread Type

Threaded & Coupled

Description

APPLICATIONS Suitable for any kind of application, even the most critical: Production casing Tubing Liner Tie-Back HP/HT​ Well design Screens

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