Steel Security Door Quality Standards

‌The quality standards of Steel Security Doors mainly include the following aspects:

First of all, steel anti-theft doors must comply with the national standards of the "General Technical Conditions for Anti-theft Security Doors", which divides the anti-theft levels of anti-theft doors into four levels: A, B, C and D. A qualified anti-theft door cannot be pried open within 15 minutes using ordinary hand tools such as chisels, screwdrivers, crowbars, and portable power tools such as hand drills or an opening of 615 square centimeters on the door leaf, or an opening of 150 square millimeters at the locking point. An opening of 38 mm² is opened in the semicircle. In addition, the locks used on anti-theft doors must be special anti-theft door locks with anti-drilling functions that have passed the testing center of the Ministry of Public Security. ‌

Specific technical requirements include:
Thickness of door frame and door body: The thickness of the steel plate of the door frame of a qualified anti-theft door should be more than 2mm, the thickness of the door body is generally more than 20mm, and the weight of the door is generally more than 40kg. In terms of steel thickness, the thickness of the door body steel of Class A security doors must be 2mm, Class B is 1.8mm, Class C is 1.5mm, and Class D is 1.2mm.
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Anti-destruction time: The weakest link of different levels of anti-theft doors can resist abnormal opening under the action of ordinary mechanical hand tools and portable power tools. Grade A shall not be less than 30 minutes, Grade B shall not be less than 15 minutes, Grade C shall not be less than 10 minutes, and Grade D shall not be less than 6 minutes.

Locks and other security components: Anti-theft doors must be equipped with special locks with anti-drilling function, and there should be a 4 mm thick lock steel plate around the lock. In addition, anti-theft doors can be made of different materials, but only doors that have passed the standard testing and obtained the safety protection product production permit can be called anti-theft doors. ‌When purchasing steel security doors, you need to pay attention to the following points:

Certification and inspection report: Dealers should hold the "Anti-theft Security Door Certification" issued by the Public Security Bureau's Technical Defense Management Department, and check whether there is the national certification standard "FAM" and a national anti-theft security door inspection report. If it is not a national inspection report, pay special attention to whether its content is an inspection report for "anti-theft security doors".

Materials and workmanship: Qualified anti-theft doors should be made of cold-rolled thin steel plates, and door frames, door leaf panels and their reinforcements should be made of steel plates of a certain thickness. The welding should be firm and there should be no false welding or burn-through. The surface should be sprayed with anti-rust primer, and the paint layer should be uniform, flat and smooth.