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Constellium France patents (2016 archive)


Recent patent applications related to Constellium France. Constellium France is listed as an Agent/Assignee. Note: Constellium France may have other listings under different names/spellings. We're not affiliated with Constellium France, we're just tracking patents.

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Aluminium - copper - lithium alloy products with improved fatigue properties

The disclosure provides for plate having a thickness of at least 80 mm comprising aluminium alloy as a percentage by weight %: cu: 2.0-6.0; li: 0.5-2.0; mg: 0-1.0; ag: 0-0.7; zn 0-1.0; and at least one element selected from zr, mn, cr, sc, hf and ti, the amount of said element, if selected, being 0.05 to 0.20 wt % for zr, 0.05 to 0.8% wt % t for mn, 0.05 to 0.3 wt % for cr and for sc, 0.05 to 0.5 wt % hf and 0.01 to 0.15% wt % for ti, si≦0.1; fe≦0.1; others ≦0.05 each and ≦0.15 in total, wherein the aged state logarithmic fatigue mean measured at mid-thickness in the lt direction on smooth specimens with a maximum stress amplitude of 242 mpa, a frequency of 50 hz, a stress ratio of r=0.1 of at least 250,000 cycles.. . ... Constellium France








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