304 Thin Wall Stainless Steel Tube

304 Thin Wall Stainless Steel Tube

Now there are more and more types and models of stainless steel pipes, of which 304 stainless steel is the most commonly used one with better quality. So 304 stainless steel decorative pipe how to identify the true and false and what are the precautions for purchasing stainless steel.

Use magnets to check authenticity
The use of magnets to identify the true and false: generally ordinary steel, its magnetic properties are very strong, and the magnetic properties of 304 stainless steel are very weak or even no, so when the same magnet is close to ordinary steel and 304 stainless steel, you can obviously feel the difference between the two magnets.
special steel inspection potion
Special steel inspection potion: Generally this potion can be purchased in the hardware store, so the supply problem can not worry, really 304 stainless steel, after dropping the liquid up, 3 to 5 seconds will not change color, and the other just now, after dropping the liquid up will instantly become other colors.
Check whether the specifications are complete
Note whether the specifications are complete: because stainless steel is a large number of wholesale, and at the same time need to wholesale a variety of specifications and models, so in the wholesale purchase, we must first ask the manufacturer, product specifications and models are complete, so as to avoid a series of follow-up problems due to the lack of specifications.
Whether zero cut is provided
Whether to provide zero cut: Because the policy of each kind of stainless steel is different, before buying, we must first understand whether the manufacturer will provide zero cutting and external polishing, which can save a lot of costs.
Whether the positive and negative tolerance is too large
Whether the positive and negative tolerances are too large: In order to ensure the external beauty of stainless steel, but also ask the manufacturer whether the raw materials of the steel pipe have been cut and handled, only to observe whether there are too many scratches and scratches, but also pay attention to the positive and negative tolerances of the industrial pipe of stainless steel will be too large, because the material of each steel pipe is different, so the range of positive and negative tolerances is not the same, usually the better the quality of stainless steel industrial pipe tolerances are smaller.
Watch the price
Pay attention to the price: because the price of metal materials is very frequent, so before buying stainless steel, it is best to understand the recent market price is how much, and then according to the market fluctuations to determine whether the price given by the business is reasonable.

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