The stainless steel railing pipes, hardware, and accessories of the specified grade are supplied by our trusted vendors and installed at the site according to the pre-mentioned specifications, BOQ, and drawings, and approved by the Engineer-in-Charge.
Material Properties
The material properties of stainless steel pipes and accessories should conform to SS 304 grade.
Stainless Steel Works
The stainless steel pipes must be procured from an approved manufacturer and be of an approved grade. The quality of the stainless steel sheet and pipe must be approved by the Client/Consultant before proceeding with the execution of any work item.
Hand Rail
The pipes used for the handrail must have a minimum thickness of 16 gauge.
The welded links are to be ground and organ buffed to restore the original finish of the surface of the welded material.
The joints or junctions where two pieces are joined/welded should be precisely cut and then welded.
Surface Finish
The surface finish of all stainless steel materials must be a Satin/Glossy finish, free from all marks and blemishes.
Work Execution
The execution of the work shall be carried out on-site in accordance with the BOQ and drawings.
Stainless Steel Accessories
Fixing will be done using stainless steel bolts, and joining shall be done with SS connectors of an approved type, size, and make, as directed by the engineer in charge. Welding should be done using organ welding rods, and the surface should be duly finished and cleaned by K2 passivation. This treatment eliminates the chances of corrosion and removes any burn marks on the metal.
Final Cleaning
Protective coatings and warning markings shall remain undisturbed until final acceptance. Immediately prior to the final inspection, temporary protective coverings or coatings shall be removed, and surfaces shall be washed with a suitable thinner. They should be left in a finished condition with an approved uniform appearance and free from all marks and blemishes.
Fabrication & Tolerances
Unless otherwise specified on the drawings, fabricating tolerances shall generally be as follows:
- Straightness: Compression members shall not deviate from straightness by more than 1/1000 of the axial length between points that are laterally supported.
- Completed members shall be free from twist bends and open joints. Sharp links or bends shall be cause for material rejection.
- Length: A permissible variation of 1mm is allowed in the overall length of members, and parts of the structure shall have a variation in the detailed length not exceeding 2mm for members 10 meters or less in length, and not exceeding 3mm for members over 10 meters in length.
Measurement
Railing shall be measured in running meters and shall be correct to a centimetre. Rates shall be inclusive of all stainless steel pipes and fittings required vertically or horizontally per running meter of the composite section of the railing, including all stainless steel components, as per the BOQ.
Rate
The rate shall include the cost of all materials such as Stainless Steel Pipes, Stainless Steel fittings and accessories, other fixing materials, T & P, scaffolding, and labour involved in all the operations described above, including fixing/installation, transportation, lead & lift, and all applicable taxes.