Stainless steel strip for EMI shielding
Shields and covers against electromagnetic interference.
EMI/RFI shielding
Covers, cans and fingers that protect circuits and equipment from electromagnetic and radio-frequency interference. They are stamped and drawn from thin strip and often mounted directly on circuit boards.
Shielding cans and frames are often deep drawn and then reflow-soldered directly onto the board: if the strip is not flat or the thickness varies, the can does not sit evenly on the pads. For these parts 3S supplies thin stainless steel strip with tight thickness tolerances to EN or ASTM and 100% dimensional control. For deep drawing, low work-hardening grades such as AISI 305 can be chosen, reducing the risk of splits and of magnetism after forming. The 2R/BA finish gives a clean surface, while spools ensure continuous feeding of progressive dies.
Where it is used
- Circuit boards and radio modules
- Automotive electronics
- Telecommunications equipment
- Electronic medical devices
Recommended grades
Supply
| Parameter | Range | Notes |
|---|---|---|
| Typical grades | AISI 301 and 304 work-hardened (1/4 – 1/2 – full hard), AISI 304 and 316L bright annealed (BA) | Other grades on request |
| Thickness | Annealed 0.05 – 0.70 mm Work-hardened 0.05 – 2.50 mm | Typical for this application: 0.10 – 0.50 mm |
| Width | 3 – 1250 mm | Typical: 10 – 60 mm |
| Finishes | Annealed 2R / BA • Work‑hardened 2H | Calibrated mechanical properties |
| Formats | Strip • Narrow strips • Spools • Sheets | Sheets cut to size up to 1000 mm |
| Spools | From 15 kg to 1500 kg | ID 50–400 mm • traverse or parallel winding |
Tolerances according to EN ISO 9445 or customer specification. 3.1 certificates on request.
Frequently asked questions
Request a quoteWhich grade should I choose for drawn EMI cans?
What thicknesses are typical for shielding?
How can I get a quote?
Tell us the alloy, finish, thickness, width, edge and format (strip/narrow strip/spool) and we will send you a quick quotation.