904L PALL RINGS
904L stainless steel PALL RING:
national standard 00Cr20Ni25Mo4.5Cu. Duplex stainless steel with a C content of<=0.02% or 0.03% has a high chromium content and sufficient nickel content. The addition of copper gives it strong acid resistance, especially to chloride interstitial corrosion and stress corrosion cracking. It is not prone to corrosion spots and cracks, and its resistance to pitting corrosion is slightly better than other types of steel.
This steel has developed with various applications with sulfuric acid corrosion
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904L 美国原始标准化学成份表(%)
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C
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Mn
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P
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S
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Si
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Ni
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Cr
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Mo
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Cu
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Fe
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0.02
Max.
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2.00
Max.
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0.045
Max.
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0.035
Max.
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1.00
Max.
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23.0-28.0
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19.0-23.0
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4.0-5.0
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1.0-2.0
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标准
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