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What are the standards for plastic steel profiles for windows

February 20, 2025

Plastic steel profiles for windows are the main material for plastic steel windows, and the standards for plastic steel profiles directly affect the quality of plastic steel windows; So people must understand the relevant standards of plastic steel profiles in order to avoid inferior products when purchasing.

There are certain standards for the wall thickness and impact resistance of plastic steel profiles. Products that meet the standards are called national standard products, while those that do not meet the standards are called non national standard products; Only by purchasing national standard products can their insulation and sound insulation effects be maximized, while also ensuring safety.

Standard for plastic steel profiles – wall thickness

Internal and external visible surfaces: National standard plastic steel profiles must have an internal and external visible surface of 2.5mm or more. Plastic steel that does not reach 2.5mm is referred to as non national standard products

Non visible surface: The non visible surface of plastic steel profiles according to national standards must be 2.2mm or more. Plastic steel that does not reach 2.2mm is called non national standard products.

Standard for plastic steel profiles – PVC content

PVC is the main material of plastic steel profiles. Although the country does not mandate the content of PVC, the quality of PVC also determines the quality of plastic steel profiles; Generally, the PVC content of plastic steel profiles needs to reach 70% or more.

Standard for plastic steel profiles – Impact resistance

According to the joint release of the General Administration of Quality Supervision, Inspection and Quarantine and the China National Standardization Administration, Chapter 7, Article 8 of the standard for unplasticized polyvinyl chloride profiles for doors and windows requires the use of 10 300mm long materials for drop hammer impact testing. After being frozen for 1 hour in an environment of minus 10 ℃, the materials should be taken out and the impact hammer should be placed 1-3 meters away from the product for testing. No one of the ten materials is allowed to break.

Conclusion: There are many standards for plastic steel profiles, which will not be introduced here because many standards can only be tested in the laboratory. Therefore, the best way for people to avoid counterfeit products is to purchase products from legitimate enterprises.

Liaocheng Luyang Profile Factory was founded in 1999 and has nearly 30 years of experience in plastic steel production. All of its products meet national standards; Not only does it have a high welding angle, but it also has a low weight, high hardness, and strong toughness. It will not change color or deform after 50 years of use.

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