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Effect of straight seam steel pipe Deoxidizer

For ω (Als≤0.01% Longitudinal, using two Deoxidizer on post-VD-treated steel total oxygen smaller, can be ω (TO control in 20 × 10-6 or less; Si-Al-Ba-deoxy after each step can get a lower total oxygen content, the process oxygen effect is stronger than Si-Ca oxygen effect.


Longitudinal when using Si-Ca, and Si-Al-Ba two different deoxidizer during smelting inclusions number, size has a greater difference, Si-Al-Ba-deoxy number of inclusions after each step is less than that after the Si-Ca deoxidation and a smaller size.


Longitudinal when using Si-Ca, and Si-Al-Ba two different deoxidizer during casting of molten steel secondary oxidation are obvious, but the Si-Al-Ba-deoxy molten steel secondary oxidation more serious.
When forgings inclusions composition and content of aluminum inclusions larger difference when using Si-Al-Ba-deoxy-forgings with massive inclusions and alumina-based chain, Longitudinal using Si-Ca-deoxy-forging the main material for the strip inclusions of silico-manganese aluminate composite inclusion; content of Si-Ca alloy forgings in aluminum deoxidation inclusions should be less than the Si-Al-Ba alloy deoxidation.

keywords:LSAW welded steel pipe

Hebei ChongSheng Special Steel Pipe Co.,Ltd.
Add: YANSHAN COUNTY,HEBEI PROVINCE,CHINA