Many friends may be curious about the anti-corrosion performance of zinc aluminum magnesium steel pipes? Today, Yuantai Derun will bring you our comparative experiment to see who has stronger anti-corrosion ability compared to ordinary galvanized steel pipes.
First, let's take you through today's experimental scenario. The name of this experiment is called the salt spray experiment. So some friends may have asked, what is salt spray experiment? Why do we need to conduct a steel pipe salt spray experiment. What impact do they have on steel pipe buyers?
The artificial simulated salt spray test includes neutral salt spray test, acetate spray test, copper salt accelerated acetate spray test, and alternating salt spray test.
Neutral salt spray test (NSS test) is an accelerated corrosion test method that has emerged and is currently widely used in various fields. It uses 5% sodium chloride saline solution, and the solution PH value is adjusted in the neutral range (6-7) as the solution for spray. The test temperature is set at 35 ℃, and the required settling rate of salt spray is 1-2ml/80cm ². Between h. Today we will conduct this neutral salt spray experiment.
Neutral salt spray test for 24 hours is equivalent to 1 year in natural environment
After 48 hours of neutral salt spray NSS (natural environment for 2 years) on the test sample:
Tangshan Yuantai Derun Steel Pipe Co., Ltd. New Product Galvanized Strip Zinc Aluminum Magnesium Square Tube
Surface rating: Level 8:
The defect area accounts for 0.15%~0.2%,
Appearance grade B (almost no darkening caused by coating corrosion), with slight discoloration on the surface of the sample;
Common galvanized square tube products
Surface rating: Level 1:
The defect area accounts for 35%~45%,
Appearance level I (cracking), and the sample exhibits corrosion of the base metal.
Through comparative tests, the new product of Tangshan Yuantai Derun Steel Pipe Co., Ltd., galvanized strip zinc aluminum magnesium square tube, has much better environmental corrosion resistance than ordinary galvanized strip square tube products.
At present, zinc aluminum magnesium steel pipe products are in hot sales. If you want to buy zinc aluminum magnesium steel pipes with excellent quality and price, you need to take action as soon as possible. We can inquire with your email: sales@ytdrgg.com
Post time: Jun-06-2023
