• 3CR12 is a unique South African developed and manufactured stainless steel.

• Enclosures manufactured from 3CR12 are slightly more expensive than mild steel

• Tests conducted by the C.S.I.R. over a 20 year period at various locations, proved the worst performance to be in depth corrosion of 10 microns, compared to more than 1 000 microns in the case of mild steel.

• 3CR12 should outlive any other material of comparable cost.

• It contains approximately 12% chromium and was designed as corrosion-resistant steel. As such, it will exhibit staining when exposed to aggressive atmospheric conditions.

• For esthetic purposes, it is recommended that powder coated units should be ordered.

• Due to 3CR12‘s good performance, all units can be root-mounted eliminating costly plinths and reducing installation cost and time.

• 3CR12 is 200 times more corrosion resisted and 40% more rigid than mild steel, resulting in reduced gauge.

3CR12 Stainless steel – the material which gives stainless steel benefits with mild steel economy and utility.


• Longer service life.
• Easy fabrication, similar to mild steel.
• Good weld ability – high integrity welds.
• Excellent impact energy resistance.
• High strength. Thinner material can be used.
• Lower cost – affordable stainless steel.
• Versatility.
• Saves on surface preparation and coatings.

Executive Summary

We are totally committed to increase our competitiveness, by constantly developing new innovative concepts, products and applications.

Our technical expertise, innovative designs, product excellence and above all, focused customer service, makes us a respected team of specialists in our field.

Ei Enclosures cc – Gauteng – South Africa

Welcome to our BEE – we manufacture custom Built Electrical Enclosures ideally for Engineers, Electrical Contractors, Municipalities nationally and internationally

Ana Botha – Managing Director

Mobile: +27 (0) 83 564 8650
Email: [email protected]

Jaco Botha – Technical Support

Mobile: +27 (0) 82 828 8404
Email: [email protected]


Fax: 086 578 3132

Vat reg no: 4200223495
Co reg. no: 2005/147494/23

Postal Address:

Ei Enclosures cc
P.O. BOX 1512
Gauteng South Africa

Welcome , today is Wednesday, January 20, 2021