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Close diagonal hatching marking structural steel.
Also known as: Structural steel hatching, Metal section pattern
On a building section structural steel is shown by close, fine diagonal hatching, or blacked in entirely where the member is small at the drawing's scale.
Marks structural steel where the drawing cuts through it.
Contexts: Technical drawing
Is filled solid at small scales, which is a general drawing convention rather than a different material: a hatch too fine to read becomes a smudge.
Contexts: Technical drawing
Fine, closely spaced parallel diagonal lines filling the cut member, or a solid fill where the member is too small to hatch.