For any construction, it is necessary to choose only high-quality rolled metal.
The decisive moment for a builder is the choice of rolled metal. After all, if you use poor material, the entire construction will be ruined. So how to choose rolled metal correctly so that it lasts a long time? So as not to incur losses later?
Here are some tips for purchasing rolled metal. If you follow them, your risks will be greatly reduced.
1. Do not try to buy rolled metal too cheaply, at some market or used. If you want to save money without harming your business, it is better to find a good wholesale base, then you can buy high-quality rolled metal prices of which will correspond to the market. But before buying, ask whether the supplier you have chosen has certificates for the material being purchased. The certificate should contain data such as hardness, relative elongation and reduction of area, impact strength, tensile strength.
2. If you are purchasing rolled metal that requires special conditions for its manufacture, inquire about the technical equipment of the enterprise where you decided to buy the product.
3. It is better to buy rolled metal from large enterprises that have all the necessary equipment and a functioning quality control department. If you decide to buy rolled metal from an intermediary, you have the right to demand all accompanying documents.
4. When buying rolled metal, pay attention to its appearance. If there are traces of rust or welds, then most likely this material was produced in underground conditions and is not of high quality.
5. Ask whether the rolled metal you are purchasing has been treated with anti-corrosion agents. High-quality rolled metal is always treated at the manufacturing plant.
Also, to buy high-quality rolled metal, you need to understand the price lists. Below are the letter designations according to GOST:
1. «С» – rolled metal for wall enclosures; 2. «Н» – rolled metal for decking; 3. «У» on a channel – flanges have a slope, «П» – flanges are parallel; 4. «М» on I-beams – inner faces of flanges have a slope, «Б», «Д», «К» – inner faces of flanges are parallel, «Ш» – wide beam; 5. «Л» – light; 6. «Э» – economical; 7. «С» – special.
Here are some more parameters. For example, the price list says: profiled sheeting 0.8*910*2600 НС44 – this means that the sheet thickness=0.8, width=910, length=2600, НС – special decking, 44 – profile height. All dimensions are given in millimeters.
So, if you follow these simple tips, you will be able to buy truly high-quality rolled metal for your needs, which will serve you for a long time.
PR