Information of Omega 301A Co-based Oval Liner

Since Elwood Haynes from America designed Co-based + Carbide Alloy in the beginning of last century, its high-temperature-resistant, corrosive-resistant and cavitation- resistant features of Co-Cr-W-C alloy has become very famous all over the world. On a basis of Co-Cr-W-C alloy, our company designed α301A alloy, its base material is the solid solution of Co & Cr alloy, so it performs superior mechanical strength and better oxidation resistant, corrosive resistant features.

Our company adopts PM-HIP technology way, after many tries and broke through a lot of difficulties in technology, we successfully designed and made some PM-HIP oval liners with Omega 301A alloy. One of our oversea clients used these oval liners since February, 2008, and under the extreme working conditions of enhanced and CPVC corrosion ambience, compared with our common 301 alloy sleeve that we supplied them for antithesis, the wear resistant and corrosive resistant feature of 301A alloy HIP oval liners is much more better! The client is very satisfied and expressed intention to get more batch from us.

The primary structure of Omega 301A alloy is solid solution of Co-based with face-centered cubic, it can keep superior mechanical strength and hardness even up and over 800℃ working condition. Due to there is a big quantity of M7C3 carbide which disperses on the basal body of 301A alloy, that makes this alloy performs superior wear resistant feature, even inside a high temperature condition! Besides, it also retains superior self-joggle, bond wear and solid powder abrasion resistant features.

Compared with 201A alloy, 301A alloy contains big proportion of WC, that’s the reason of its higher hardness and better wear resistant feature. The chemical composition and hardness as below:

Corrosion resistant performance:

Chief Engineer Office
Shanghai Alpha Machinery Co., Ltd

We make up our mined to put this newly-designed Co-based 301A alloy PM-HIP oval liner into mass produce In October 2008 after, welcome customers all over the world make enquiry to us!