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Re: Use Of ASTM A513 For Stairs' Guardrails

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Harold -
  If ASTM A513 is the wave of the future, I just hope that specifiers narrow
the parameters. Per this document, there are six types of tubing(as welded
from hot and cold rolled steel; sink drawn hot and cold steel; mandrel drawn
and special smooth inside diameter). In addition, each type can be divided
into numerous grades(1008 through 8630) each which have different chemical and
tensile properties.