What is the material grade specified for slotted sections?

The code specifies steel conforming to IS 226, which is now obsolete. The current equivalent is IS 2062, typically Grade E250 (Fe 410W).

What are the standard sizes for slotted angles?

Common sizes include 40x40, 60x40, 60x60, and 80x80 mm, with thicknesses ranging from 2.5 mm to 3.15 mm (Table 1).

What is the designation for a slotted channel 80mm deep and 40mm wide?

The designation is SC 8040 (Clause 3.2).

What are the standard supply lengths?

Standard lengths are 4m, 5m, and 6m, with a tolerance of +50 mm, -0 mm (Clause 6.1).

IS 8081

: 1976

slotted sections

CurrentSpecializedSpecificationBIMStructural Engineering · Structural Engineering and Structural Sections

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This Indian Standard specifies the dimensions, mass, sectional properties, and manufacturing tolerances for hot-rolled steel slotted angles and slotted channels. These sections are specifically designed for easy assembly into frameworks like storage racks, shelving units, and other light-duty structural applications.

slotted sections

Quick Reference Values

Nominal mass of Slotted Angle SA 4040 x 2.51.47 kg/m

Nominal mass of Slotted Channel SC 8040 x 2.52.41 kg/m

Standard length of sections4 m, 5 m, 6 m

Length tolerance for standard lengths+50 mm, -0 mm

Tolerance on thickness for t ≤ 3 mm+0.3 mm, -0.2 mm

Tolerance on leg length (A or B) for A, B ≤ 50 mm±1.0 mm

Practical Notes

The material standard IS 226 mentioned in this code is obsolete. Use equivalent grades from the current standard IS 2062, such as E250, for material specification.

The designation is crucial for ordering: 'SA' denotes Slotted Angle and 'SC' denotes Slotted Channel, followed by dimensions (e.g., SA 6040 for a 60x40 mm angle).

These sections are intended for bolted connections using the pre-formed slots; welding is generally not the primary connection method.