VM 125 13CRSS

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​VM 125 13CRSS is a super martensitic OCTG steel (also called Super 13%Cr steel) for sweet wet CO2 corrosive environments. It is manufactured in accordance with the latest edition of API 5CRA and ISO 13680 – PSL 1. VM 125 13CRSS offers a minimum Yield strength of 125 ksi (758 MPa) together with corrosion resistance on a greater usage domain than API L80-13CR in terms of temperature and chloride content.

APPLICATIONS

  • Deep and/or HP/HT production Tubing and Liners exposed to flowing effluents containing CO2
  • For temperatures up to ~180°C (356°F)
  • Traces of H2S

Finer grade selection shall take into account other parameters such as Chloride content and in-situ pH.

PERFORMANCES

OCTG carbon steels are known to corrode when exposed to wet CO2 containing environments: they will suffer from various forms of corrosion such as general metal loss corrosion or localized corrosion (pitting, crevice, Mesa attack). 

Martensitic and Super martensitic steels have proved to be the most cost effective solution to protect against wet CO2 corrosion in Oil & Gas wells.​
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​Comparison of Cost vs time for Carbon steel + inhibitors (+ workovers) and for 13%Cr steel in wet C02 well​

VM 125 13CRSS is manufactured in accordance with group 1- material category 13-5-2 of the latest edition of API 5CRA and ISO 13680 – PSL 1.

VM 125 13CRSS offers a minimum Yield strength of 125 ksi (862 MPa) together with corrosion resistance on a greater usage domain than API L80-13CR in terms of temperature and chloride content, as shown on the graphs below :

          

Corrosion resistance of Super 13Cr vs API L80-13Cr as a function of temperature and chloride content​​

MECHANICAL PROPERTIES​

Yield Strength 
ksi (MPa)

Ultimate Tensile Strength ksi (MPa)

 

Elongation
%

 
Hardness
HRC​​ ​​
​Yound Modulus(GPa)​
Min. Max. ​Min.​ Min.​ Mean Max. Min. Max.
125
(862)
 140
(965)
​130 
(869)​
API 5CRA formula 32 34​ 170 230
Charpy ​V-notch ​Impact test at -10°C (14​°F)​​​
Direction Absorbed energy on a 10x10 mm specimen
Transverse 60 ft.lb (80 J)
Longitudinal​ ​74 ft.lb (100 J)

STORAGE & HANDLING RECOMMENDATION

  • Avoid pollution by contact with carbon or low alloy steel (pipes or parts).
  • Avoid atmospheric pollution with iron (e.g. concrete​ plant).
  • Perform proper cleaning and inspection after rig returns (potential impact of completion fluid).
  • Please refer to the​ VAM® BOOK and Vallourec recommendations for more details on storage, handling, transportation and running of Super 13CR pip​es.
 
 

Brochures​

​​​​13CR Brochure
OCTG Pr​oduct Selection Guide​ ​​​​​​​​​​​​​​​

MOBILE​​ APP​​

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