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SS Cap Rivet for Pressure Cooker — Complete Guide for Manufacturers
SS Cap Rivet for Pressure Cooker — Complete Guide for Manufacturers
The SS cap rivet for pressure cooker is a safety-critical fastener. Unlike general cookware, pressure cookers operate under internal pressure — which means the handle rivets must withstand both mechanical load and thermal stress without failure. This guide covers everything a pressure cooker manufacturer needs to know about selecting, specifying, and sourcing the right SS cap rivet.
Why Pressure Cooker Rivets Have Special Requirements
A pressure cooker typically operates at 10–15 PSI internal pressure with temperatures reaching 120°C. The handle must be capable of supporting the full weight of the cooker (with food and water) while under pressure. This makes rivet selection a safety issue, not just a cosmetic one.
Key requirements for pressure cooker rivets:
- High tensile strength — must not pull out under load
- Corrosion resistance — steam and water contact continuously
- Heat resistance — no deformation at 120°C+
- Food safe material — SS 304 grade preferred
- BIS compliance — Indian pressure cookers must meet IS 2347 standard
Recommended SS Cap Rivet Specifications for Pressure Cookers
| Cooker Size | Rivet Diameter | Rivet Length | Grade | Quantity per Handle |
|---|---|---|---|---|
| 2–3 litre | 4mm | 8–10mm | SS 304 | 2 rivets |
| 4–5 litre | 4.8mm | 10mm | SS 304 | 2–3 rivets |
| 7–10 litre | 4.8mm | 12mm | SS 304 | 3 rivets |
| 12–15 litre | 5mm | 12–14mm | SS 304 | 3–4 rivets |
| Handi cooker | 4mm | 8mm | SS 304 | 2 rivets per side |
SS 304 — The Only Acceptable Grade for Pressure Cookers
While SS 202 is acceptable for general cookware, SS 304 is strongly recommended — and often required — for pressure cooker rivets for the following reasons:
- Higher nickel content provides better resistance to steam and acidic food condensation
- Non-magnetic — passes international product quality tests
- Better performance at elevated temperatures
- Required by many export market standards (EU, Middle East, USA)
- BIS IS 2347 compliance is easier with SS 304 grade
SS Cap Rivet vs Other Rivet Types for Pressure Cookers
| Rivet Type | Pressure Cooker Use | Reason |
|---|---|---|
| SS Cap Rivet (full SS) | ✅ Recommended | Full SS construction, highest strength and corrosion resistance |
| SS Cap Aluminium Rivet | ⚠️ Acceptable for smaller cookers | Aluminium body is weaker; not ideal for large/high-pressure cookers |
| Aluminium blind rivet | ❌ Not recommended | Insufficient strength and corrosion resistance for pressure application |
| Mild steel rivet | ❌ Not acceptable | Rusts, not food safe |
How to Install SS Cap Rivets in Pressure Cooker Handles
- Drill matching holes through the cooker body and bakelite/SS handle at specified positions
- Insert SS cap rivet from outside (polished cap facing out)
- Use a hydraulic or pneumatic riveting machine set to correct pressure for 4mm or 4.8mm rivets
- The mandrel deforms the body end to form a tight clinch on the inside
- Inspect: cap must be flush with surface, no gap between cap and cooker body
- Pull test: the handle should support 3x the cooker’s filled weight without rivet movement
BIS Standard IS 2347 and Rivet Requirements
Indian pressure cookers must comply with BIS IS 2347. This standard specifies that handles must be securely fastened and capable of supporting the cooker under working conditions. Using SS 304 cap rivets of correct size and proper installation ensures compliance. We recommend getting your finished product tested at a BIS-approved lab if you are new to pressure cooker manufacturing.
Sourcing SS Cap Rivets for Pressure Cookers — Why Buy from Kamlesh Enterprises
- Specialized in SS cap rivets — our primary product since 2004
- SS 304 grade stock always available — no waiting for raw material
- All pressure cooker sizes covered — 4mm, 4.8mm, 5mm in multiple lengths
- Material test certificate available on request
- Factory in Mumbai — fast supply to all major cookware manufacturing clusters
- Export capability — supply to pressure cooker manufacturers in Middle East, Africa, Southeast Asia
Frequently Asked Questions
Which rivet size is best for a 5-litre pressure cooker?
We recommend 4.8mm diameter x 10mm length SS 304 cap rivet, 2–3 rivets per handle, for a 5-litre pressure cooker.
Can I use SS cap aluminium rivets for pressure cookers?
For small cookers (2–3 litre), SS cap aluminium rivets are acceptable. For 5 litre and above, full SS cap rivets in SS 304 grade are recommended for safety and durability.
Do you supply rivets to pressure cooker manufacturers across India?
Yes. We supply to pressure cooker manufacturers in Mumbai, Pune, Ahmedabad, Delhi, and for export. Call us at +91 90225-54368 or email enquiry@kamleshenterprises.co.in for a quote.
What is the delivery time for SS 304 cap rivets for pressure cookers?
Standard sizes in SS 304 are usually in stock. Delivery within Mumbai: 1–2 days. Pan India: 3–5 days. Export: 10–15 working days.
Related Pages
- SS Cap Rivet Manufacturer India — All sizes, factory direct pricing, worldwide export
- SS Cap Aluminium Rivet Manufacturer India — Aluminium body with SS cap, all sizes available
- Buy SS Cap Rivet — View all sizes and request a quote
- Buy SS Cap Aluminium Rivet — Factory direct, MOQ 5000 pcs
- Contact Kamlesh Enterprises — Get quote, samples and export enquiries