Aluminum alloy pipe having multistage formability

Details Aluminum alloy pipe having multistage formability Aluminum alloy pipe having multistage formability

2007-01-02

2007-01-02

King, Roy (Department: 1742)

Metal treatment

Stock

Aluminum base

C420S542000, C420S543000

Reexamination Certificate

active

10353058

ABSTRACT:
An aluminum alloy pipe, which is composed of an aluminum alloy containing 2.0% (% by mass, the same hereinafter) to 5.0% of Mg, 0.20% or less of Si, 0.30% or less of Fe, 0.8% or less (including 0%) of Mn, 0.35% or less (including 0%) of Cr, and 0.2% or less (including 0%) of Ti, with the balance being Al and inevitable impurities, wherein the aluminum alloy pipe has a 0.2% yield strength of 60 MPa or more and 160 MPa or less and an average crystal grain diameter of 150 μm or less, and wherein the aluminum alloy pipe has multistage formability.

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Glazkov, V.I. “Possible deformation during espansion and heat flanging”, abstract.
Concise Explanation of Documents AC-AG.

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