Thin oblong section steel tube source

[pcatterall]

two sections of my awning frame are broken. I have made a temporary repair using hardwood inserts. The section is 20mm x 10mm and just about 1.5mm thick. Tried a search but only very heavy stuff found and not such a small section.
Any good known sources please?

 

[Ian_Rob]

Rectangular Hollow Section steel 20mm x 10mm x 1.5mm

or in 304 Stainless Steel Rectangular Tube ║ 20 x 10 mm ║ box section iron,profile,tubing | eBay

or in 316 Rectangular Box Section