The different wires listed under each Mettex product are the standard materials held in stock and normally used in the manufacture of those particular groups. For specialised applications, Mettex manufactures using materials such as aluminium, beryllium, phosphor bronze, brass & nickel alloys, silver plated copper and other high performance copper alloys.
All Mettex products comply with EU Directives the Ristriction of Use of Hazardous Substances (RoHS) and Waste Electrical and Electronic Equipment (WEEE).
We are also fully compliant with the Restriction, Evaluation, Authorisation and Restriction of Chemicals (REACH).
Mettex Electric Co. Ltd is registered to ISO 9001:2008
Material standards will be appropriate for the task or according to customer requirements. Most products are made from tinned or plain copper wires conforming to BS EN 13602:2002. Nickel-plated copper wire is generally to ASTM B355, Stainless Steel wire is 304 or 316 Grade and Aluminium conforms to EN573-3. Wires diameters vary between 0.051mm and 0.4mm according to the degree of flexibility required.
Options exist to conduct pull off and volt drop tests - typically Def Stan 59-71 / BSG 178, BS4759. We can also provide resistance and heat rise figures to verify the efficacy of our products.
Definitions
Cross Sectional Area
This is the sum of the cross sectional area of one wire end multiplied by the total number of wires in mm².
Flexibility
Generally, the smaller the wire diameter, the greater the degree of flexibility but each application can be influenced by a number of external factors such as vibration, frequency and pattern, shock loading, other cables present and method of tying down. Flexibility can be split into three categories:
Category Wire ø mm
Highly Flexible 0.051 - 0.071
Very Flexible 0.10 - 0.16
Flexible 0.20 - 0.30
Temperature Ratings
Current ratings are given as a guide only and are approximate values based on a 56°C rise above an ambient temperature of 20°C for bare conductors suspended horizontally in free, still air.
GENERAL NOTE
The information contained in this brochure is subject to change without prior notice and is supplied in good faith.
It is believed to be correct but it is a condition upon the persons reading it to satisfy themselves by their own determination as to the suitability of the product(s) for their purpose prior to use. Mettex make no representations or warranties either expressed or implied with respect to the information or the product to which the information refers.