C7x12.25

Dimensions, weight per metre and paint area

C7x12.25 is an American Standard channel weighing 18.2 kg/m (12.2 lb/ft): a 12 m length weighs 218.4 kg. It is 177.8 mm deep and 55.6 mm wide; the web is 7.98 mm and the flanges 9.3 mm thick.

Also listed as C180X18.2.

Dimensions

Depth h	177.8 mm
Flange width b	55.6 mm
Web thickness tw	7.98 mm
Flange thickness tf	9.3 mm

Weight and area

Weight per metre	18.2 kg/m
Weight per foot	12.2 lb/ft
Cross-section area	23.2 cm²
Paint area per metre	0.578 m²/m
Paint area per tonne	31.8 m²/t

Weight by length

1 m	18.2 kg
6 m	109.2 kg
12 m	218.4 kg

Dimensions and mass per AISC Shapes Database v16.0, from Steel Optimizer's verified section library. Area is worked out from the mass at 7,850 kg/m³. Paint area counts the outside perimeter with square corners and ignores root radii, so it is on the safe side: typically 2–5 % above catalogue surface areas.