- Material is High Grade Medium Carbon Steel. S 355Jo
- Raw Material bars are ultrasonically tested as per SA 578 level A & test certificate has to comply to EN 10204 - 3.1C standards. Bar traceability records are kept.
- Preturning & finish turning on CNC turning centre. Threads as per M105x2mm pitch to 6G grade and concentricity required within 0.02mm with reference to spigot OD.
- Heat treated and Nitrated to 55-60 RC under controlled heat treatment process.
- Stage inspection after the heat treatment process.
- After complete dimensional inspection, painting in controlled area by duly masking the threaded portion.
- Sand blasting SA2.5 as per Swiss Standards.
- Painting process:- First coat of Zinc rich primer to 40µ Second coat of intermediate paint - 40µ. Final coat of polyurethane paint 50µ with separate shades of (RAL Standard) for use for export and domestic market.
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S 70 Axial Cap
