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.
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.
VM 28 125 has been tested from room to high temperature for SCC with different levels of H2S.
Typical Chemical composition
Density = 7.98kg/dm3
Strength ksi (MPa)
Control hardness through wall
Physical properties & evolution with temperature
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.