Free Engineering Tools

A complete reference chart for Indian Standard (IS) steel sections — gives you the weight per metre for every standard size. Covers all sections used in conveyor fabrication, structural work, and general engineering. Based on IS 808, IS 1730, and IS 4923 standards.

• ISMC Channel — all sizes from ISMC 75 to ISMC 400
• ISA Angle — equal and unequal, all IS sizes
• ISMB Beam — all sizes from ISMB 100 to ISMB 600
• MS Flat Bar — all standard widths and thicknesses
• MS Round Bar — 6mm to 100mm dia
• MS Square Bar — all sizes
• Square Hollow Section (SHS) — IS 4923 sizes
• Rectangular Hollow Section (RHS)
• ERW Pipe — NB sizes with schedules
• MS Sheet — weight per sq.metre for all thicknesses

Generate the flat-blank pattern for screw conveyor flights instantly. Enter outer diameter, shaft diameter, and pitch — the tool calculates the correct flat-ring radii and sweep angle using the standard helicoid development formula. Download as DXF for laser or plasma cutting.

• Enter OD, shaft ID, and pitch in mm — get result instantly
• Calculates outer radius (R), inner radius (r), sweep angle
• Live preview of the flat-ring shape on screen
• Developed length of outer helix shown
• DXF file download — works in AutoCAD, SolidWorks, any CAD
• Enter your email — DXF is also sent to your inbox
• Supports OD from 50mm to 2000mm, any standard pitch
• Free — no subscription, no login required