Thread: aluminium
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Old 28-02-10, 06:29 PM
GREG GREG is offline
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The same as they use now 16 swg (1.6mm ) in alloy NS4 H3 ( old BS designation ) or 5251 H22 in EN modern designation.

The first bit tells you it has 1.5 percent magnesium and the H bit is the "half hard" temper.

Greg
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