牌 號
|
化學(xué)成分(質(zhì)量分?jǐn)?shù))(%)
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C
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Si
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Mn
|
P
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S
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Ni
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Cr
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Mo
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其他
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沉淀硬化型
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≤0.07
|
≤1.00
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≤1.00
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≤0.035
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≤0.030
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3.00~5.00
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15.50~17.50
|
Cu3.00~5.00
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Nb0.15~O.45
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≤0.09
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≤1.00
|
≤1.00
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≤O.035
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≤0.030
|
6.50~7.75
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16.00~18.00
|
A1:0.75~1.50
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≤0.09
|
≤1.00
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≤1.00
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≤O.035
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≤0.030
|
6.50~7.50
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14.00~16.00
|
2.00~3.00
|
A1:0.75~1.50
|
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