Overview
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APL Apollo Tubes Ltd. is among the largest manufacturers of structural steel tubes & pipes in India.
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The MS pipes are mild steel, typically manufactured via ERW (Electric Resistance Welding) or from rolled HR Coils, depending on the product.
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Types / Variants
APL Apollo offers various MS pipe/tube categories, depending on shape, coating, thickness, and finish:
| Variant | Key Features / Coating | Typical Sizes / Shapes |
|---|---|---|
| Plain MS Pipes / Black Finish | No coating; raw mild steel. Used where aesthetics or corrosion are secondary. | Round, Square, Rectangular. Outside diameters from small (½") up to large sizes like 323 mm OD, thicknesses from ~1 mm up to ~6 mm (or more) depending on shape.+2 |
| Galvanized MS Pipes | Steel pipes coated in zinc to resist corrosion. | |
| TriCoat Pipes | Triple coating: pure zinc, plus organic (polymer) top coat, and interior/exterior painting/coating. High corrosion resistance. |
Dimensions & Thickness
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Outer Diameter (Round): From small (~20 mm) up to large diameters (e.g. 323 mm) depending on variant.+2
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Thickness / Wall Gauge: Ranges ~1 mm up to about 6 mm (some sources quoting up to ~10 mm for square/rectangular tubes) depending on size & shape.
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Length: Standard lengths are around 6 metres; some variants also offer upto 12 metres for certain products. For example, TriCoat pipes are available in lengths from ~3.0 metre to 12.0 metre.
Standards & Material Grade
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The steel used is mild steel (MS), which generally has low carbon content.
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Some references mention compliance with Indian Standards like IS 1239, IS 1161, IS 4923, IS 3601 etc. depending on the product type.
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Quality assurance: APL Apollo claims rigorous QC, tested pipes for dimensional accuracy, weld quality, coatings, corrosion resistance etc.
Performance & Properties
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Strength: MS pipes have decent mechanical strength; for TriCoat pipes, APL claims yield strength ~350 MPa, tensile ~380 MPa.
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Corrosion Resistance: Dependent on coating — plain MS has low resistance, galvanized & TriCoat much better. TriCoat offers both interior & exterior coating, good salt spray resistance etc.
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Weldability & Fabrication: Good weldability is one of the touted features, especially with coated pipes like TriCoat.
Common Applications
APL Apollo MS pipes are used in:
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Structural frameworks: scaffolding, sheds, steel buildings.
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Railing, fencing, gates, staircases.
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Manufacturing of appliances & supports.
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Agricultural structures like greenhouses.
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Conduits for electrical wiring etc. especially where corrosion resistance is needed (using coated variants)
