European standard aluminum profile and the difference between the national standard aluminum
Industrial aluminum used in the manufacturers know that industrial aluminum is divided into the national standard aluminum and European standard aluminum, then what is the national standard aluminum? What is the European standard aluminum?
Xiaobian Hongfa had just thought that the national standard is produced in accordance with national standards, the European standard aluminum is produced in accordance with European standards, dimensional accuracy than the national standard, the price is higher than the national standard, in fact, I was wrong. Industry said the national standard and the European standard are produced in accordance with national standards (industrial aluminum standard GB / T6892-2006, building aluminum standard GB5237-2008), of course, Hongfa's internal control standards should be much higher than the national standard.
Hongfa 40 * 40 European standard HF022
The difference between the European standard aluminum profile and the national standard aluminum look at two places, one is the notch, one is chamfering. European standard aluminum notch is trapezoidal, easy to install T-bolts or T-nuts. National standard aluminum notch is rectangular, generally square nuts and hex bolts.
The second is different chamfering, European standard four corners of the aluminum arc over, larger chamfer. GB aluminum chamfer is very small, almost at right angles. Of course, Hongfajia European standard aluminum profile also has a right angle, can be freely designed according to need.
Hongfa 4040 GB aluminum HF142
These are just the differences in shape, and if you still do not know how to choose, we can compare their strengths and weaknesses. In the case of the same wall thickness and dimensions, the European standard aluminum profile is heavier than the national standard aluminum profile, which means scrap material, but the overall European standard aluminum profiles more beautiful than the national standard aluminum profile.
Construction aluminum alloy template production process