S31803 igwe anaghị agba nchara bụ nitrogen Alloy Duplex na-enweghị nchara nwere 22% Chromium, 3% molybium, na 5-6% nickel. Na mgbakwunye na ike dị elu na mmetụta siri ike, ọ na-enwe nguzogide corrosonion, corrosion nke obodo na nchekasị obodo. Njirimara corrosive.
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