VM 825 120 is an austenitic Corrosion Resistant Alloy. The main alloying elements are 42%Ni, 21%Cr and 3.5%Mo. VM 825 120 is delivered in cold work condition. It can be hardened by drawing or pilgering.
VM 825 120 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 825 120 can be used as tubing or casing.
VM 825 120 has been tested from room to high temperature for SCC with different levels of H2S.
Typical Chemical composition
Strength ksi (MPa)
Control hardness through wall
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.
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