VM 28 125

VM 28 125.png

VM 28 125 is an austenitic Corrosion Resistant Alloy. The main alloying elements are Ni, Cr and Mo. VM 28 125 is delivered in cold work condition. It can be hardened by drawing or pilgering.

​APPLICATIONS

VM 28 125 is recommended when pCO2 is above 2psi / 0.14bar, high temperature up to 450°F / 232°C and presence of chlorine. It resists to H2S partial pressure of more than 500psi – 34bar. Partial pressure H2S acceptable is governed by temperature.

VM 28 125 can be used as tubing or casing.

​PERFORMANCES

VM 28 125 has been tested from room to high temperature for SCC with different levels of H2S.

Typical Chemical composition

UNS​

CCrNiMo
N080280,025 max26 - 28​30 - 32.53 - ​4

Density = 7.98kg/d​m3

​MECHA​NICAL PR​OPERTIES

Yield Strength 

Ksi (​MPa)​

​Ultimate Tensile

Strength ksi (MPa)  

​Elongation
​%   
​Mean Hardness
HRC 

​​​Min.

​M​ax.

​​Min.

​ Min.

​ Max.

125 (862)150 (1034)130 (896)10%​​37​

Control hardness through wall  

​Less than 0.357"
(Less than 9.00mm)
​0.354" to ​0.499"
(9.00 to 12.69mm)
​0.500" to ​0.759" 
​(12.70 to 19.04mm)
​​0.750" to 0.999"
(19.05 to 25.39mm)
1000" and above
(25.40mm and above)

​3.0

4.0

​5​.0​

6.0

6.0​​​

​​​PHYSICAL PROPERTIES

Physical properties ​& ​evolu​tion with temperature​

Ch​aracteristic

Unit

Temperature (°C)

2550100150200250
Yield Streng​th
derating
%1.0000.9680.9330.9080.889​0.873
Ultimate Tensile Strength
derating
%1.0000.9780.9450.9210.9030.888
Thermal conducti​​​vityW m-1 K-111.5712.2312.8114.7915.6816.25
Thermal diffusivityx 10-6 m²s-13.163.263.473.68
3.894.10
Thermal expansionx 10-6 / deg. C-15.215.315.515.7​15.9
Poisson's ratio-      
Young's modulusGPa169.9168.2165.7163.1160.6159.2
Resistivitynano Ohm.m10701082​1102112211431162
Specific heat capacityJ.g-1.K-10.470.480.470.510.510.50

STORAGE & HANDLING RECOMMENDATION

Avoid pollution by contact from carbon or low alloy steel (pipes or parts).

Avoid atmospheric pollution with iron (e.g. concrete plant).

Please refer to the VAM® BOOK​.​​​​

 
 

Broch​u​​res​​​

​​​OCTG Product S​election Guide​​​​​​​​​​​​​​​​​​​​​

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