Uginox patina k44 stainless steel sheet metal

Uginox Patina K44

Uginox patina k44 stainless steel the “new terne coated stainless steel” is produced in stainless alloy 444 base, which contains 18% chromium, molybdenum and titanium, with an electro-tinned coating on both sides which tones down the natural luster and allows the surface to weather over time to a soft matte gray finish. It's tinned surface also makes for easy soldering of complex details.
UGINOX® Patina K44 has excellent corrosion resistance. 5000 hours of salt spray testing have been completed. The PREN, Pitting Resistance Equivalent Number is a measure of corrosion resistance based on chemistry of the stainless steel. The chemistry of UGINOX® Patina K44 includes Molybdenum, improving its corrosion resistance.

Unexposed vs. 16 weeks of exposure.

Attention: This material is being offered as an alternative to TCSII which is not in production at the time. Riverside Has a few sheets and some coil in stock available for purchase only if parts are fabricated with it, not as is.
Alternative 1: Freedom gray - This material has the same finished look but it is made with copper sheets instead of stainless steel.
Alternative 2 (for small projects): TCSII - Terne coated stainless steel is basically type 304 stainless steel coated in both sides with terne alloy (50% tin, 50% zinc). Highly corrosion resistant, which makes it an ideal roofing material. It offers a soft-looking protective patina that develops after exposure to the elements.

Used gutters, metal roofing, corrugated panels and other miscellaneous items.