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Chromium Grades 

Chromium Grades

Martensitic grades to be used in wells with CO2, chlorides and/or some H2S up to 180°C.

Name Y.S. range
(ksi-MPa) 		U.T.S. min.
(ksi-MPa) 		HRC value Coupling colour code
VM 80 13CR 80 (552) - 95 (655) 95 (655) ≤ 23 VM 80 13CR
VM 90 13CR 90 (621) - 105 (725) 100 (690) ≤ 26 VM 90 13CR
VM 95 13CR 95 (655) - 110 (758) 105 (724) ≤ 28 VM 95 13CR
VM 95 13CRSS 95 (655) - 110 (758) 105 (724) ≤ 30 VM 95 13CRSS
VM 110 13CRSS 110 (758) - 125 (862) 120 (828) ≤ 34 VM 110 13CRSS
VM 80 13ET 80 (552) - 95 (655) 95 (655) ≤ 23 VM 80 13ET

Ferritic-austenitic grades to be used in wells with CO2, chlorides and/or some H2S up to 250°C.

Type Name Y.S. range (ksi-MPa) U.T.S. min. (ksi-MPa) HRC value Elongation
Duplex VM 22 65* 65 (450) - 90 (620) 90 (620) ≤ 26 ≥ 25%
VM 22 110 110 (760) - 140 (965) 115 (795) ≤ 36 ≥ 11%
VM 22 125 125 (860) - 150 (1035) 130 (900) ≤ 37 ≥ 10%
VM 22 140 140 (965) - 160 (1105) 145 (1000) ≤ 38 ≥ 9%
         
VM 25 75* 75 (520) - 100 (690) 95 (655) ≤ 26 ≥ 25%
VM 25 125 125 (860) - 150 (1035) 130 (900) ≤ 37 ≥ 10 %
VM 25 140 140 (965) - 160 (1105) 145 (1000) ≤ 38 ≥ 9%
           
Super duplex VM 25S 80* 80 (550) - 105 (725) 105 (725) ≤ 28 ≥ 25%
VM 25S 125 125 (860) - 150 (1035) 130 (900) ≤ 37 ≥ 10%
VM 25S 140 140 (965) - 160 (1105) 145 (1000) ≤ 38 ≥ 9%

* solution annealed grades, higher grades are obtained by cold working.

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Please refer to the genuine web site www.vamservices.com

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