SMRANZ Scrap Metal Recycling Association of New Zealand, INC

Metals are separated into one of two basic grades, which are referred to in the scrap metal recycling industry as ferrous and nonferrous metals.

Once a metal has been identified as one of these types, it is then further categorized into more specific grades for processing. All of our members grade and process their metals according to international specifications, which determine the price of the metal at the time of purchase. Prices are regularly subject to change as dictated by the fluctuations in the world market, and prices are likely to vary slightly nationwide (e.g. depending on location).

Please note that the information provided below is intended as an introduction and basic guide to metals only. If you would like further information regarding any of the metals you have for purchase, or any questions relating to metal identification, please contact your local Association member or our office.

Ferrous Metals

These metals, scrap iron and steel, are magnetic, and are generally heavier than most non-ferrous metals. Some of the most common grades of ferrous metals that are handled by our members are described as follows:

Cast Iron Items that have been cast from a furnace. Brake drums, manifolds, storm cover gratings, roller rings
Heavy Steel Steel greater than 3mm in thickness. Railway iron, construction steel, plate stell, old machinery
Lightgrade Steel Steel less than 3mm in thickness. Roofing iron, ducting, drums, spouting
Ferrous Inorganic Products consisting mostly of metals in mixed form. Whiteware, car bodies
Heavy SteelLight Grade SteelCar bodies for recycling

Non-Ferrous Metals

These metals are non magnetic and are generally lighter and more valuable than ferrous metals.
There are numerous grades of nonferrous metals, including aluminium, copper, brass, stainless steel and lead.
The most common products handled by our members for each of these grades are described as follows:

Cast Heavy, dense aluminium which has been cst into moulds. Mag wheels, gearbox housing, drain covers
Clip Flat sheet aluminium.  
Domestic Mixed aluminium products. Pots and pans, registration plates, corrugated roofing
Extrusion Aluminium which has been extruded through a die. Window frames, channel box section
Irony Aluminium containing steel containments Brake boosters, cylinder heads, vehicle water pumps
Swarf Aluminium turnings  
Domestic Copper based products containing various other nonferrous metals in nominal amounts. Water cylinders, toilet cisterns, spouting
Grade 2 Uncoated oxidized copper products free of welds and fittings. These products are typically thinned walled. Piping sheet, offcuts
Grade 1 Copper which is both clean, bright and uncoated. New pipe offcuts, punchings, unsheather copper wire (No. 16 gauge and >) 
copper pipe
Mixed Brass of varied appearance in weight and colour (though typically yellow). Fittings, taps, piping
Swarf Brass turnings.  
Stainless Steel
Solids The hardest of all nonferrous metals, usually shiny in appearance and difficult to scratch or make an impression on. Bench tops, sinks, shower trays
Swarf Stainless Steel turnings.  
stainless steel
Solids Lead products are both soft and hard in nature, although generally pliable or easily dented. Flashing, sinkers, piping
Batteries Batteries containing lead acid. Sourced from automotive vehicles and other machinery (does not include dry cell batteries)