Purchasing stainless steel instrument tubes according to these standards will not step on thunder!
By: mxgy,
When we purchase stainless steel instrument tubes, we don’t just place an order casually. We also need to purchase according to certain requirements and standards, so that it is not easy to step on the thunder. Next, Mingxin Stainless Steel will introduce how to choose stainless steel instrument tubes.
1. Before purchasing, first consider the use environment of stainless steel instrument tubes.
2. When selecting steel pipes, the materials must meet the standards. (Here take 304 stainless steel as an example)
(1) Test with acid reagent, wait for 30 seconds and observe: 304 stainless steel will not change color, but 201 stainless steel will turn black.
(2) Check whether the “304” steel stamp is printed on the surface of the steel pipe, and ask the merchant for a product quality certificate.
(3) Compare the prices, for example: if the price of 304 stainless steel is lower than the general price of 301 stainless steel on the market, it should be carefully distinguished to avoid impersonating other materials.
(4) When purchasing in large quantities, samples can be sent to the national authoritative testing center for chemical analysis.
3. Observe whether the outer surface and inner wall of the stainless steel instrument tube are bright and smooth, and whether the thickness is uniform and rough.
Welded pipes are generally not inspected, while seamless steel pipes are produced by cold drawing or hot rolling. Improper operation during production can easily lead to uneven wall thickness and surface cracks, while the rough surface means that the steel pipe has not been polished. If there are no special requirements on the appearance, it will not affect the use.
4. Stainless steel instrument tubes should be purchased from high-quality products evaluated by the Bureau of Quality and Technical Supervision.
5. When purchasing, be sure to choose rolled pipes with pitting, double-layer skin, and rolling green lines as much as possible, especially check whether the inner surface is smooth.
The above operations are mainly to check whether the quality of the stainless steel instrument tube is qualified. Here, Mingxin Stainless Steel wishes everyone to buy qualified and favorite products.
Purchasing stainless steel instrument tubes according to these standards will not step on thunder!
By: mxgy,
When we purchase stainless steel instrument tubes, we don’t just place an order casually. We also need to purchase according to certain requirements and standards, so that it is not easy to step on the thunder. Next, Mingxin Stainless Steel will introduce how to choose stainless steel instrument tubes.
1. Before purchasing, first consider the use environment of stainless steel instrument tubes.
2. When selecting steel pipes, the materials must meet the standards. (Here take 304 stainless steel as an example)
(1) Test with acid reagent, wait for 30 seconds and observe: 304 stainless steel will not change color, but 201 stainless steel will turn black.
(2) Check whether the “304” steel stamp is printed on the surface of the steel pipe, and ask the merchant for a product quality certificate.
(3) Compare the prices, for example: if the price of 304 stainless steel is lower than the general price of 301 stainless steel on the market, it should be carefully distinguished to avoid impersonating other materials.
(4) When purchasing in large quantities, samples can be sent to the national authoritative testing center for chemical analysis.
3. Observe whether the outer surface and inner wall of the stainless steel instrument tube are bright and smooth, and whether the thickness is uniform and rough.
Welded pipes are generally not inspected, while seamless steel pipes are produced by cold drawing or hot rolling. Improper operation during production can easily lead to uneven wall thickness and surface cracks, while the rough surface means that the steel pipe has not been polished. If there are no special requirements on the appearance, it will not affect the use.
4. Stainless steel instrument tubes should be purchased from high-quality products evaluated by the Bureau of Quality and Technical Supervision.
5. When purchasing, be sure to choose rolled pipes with pitting, double-layer skin, and rolling green lines as much as possible, especially check whether the inner surface is smooth.
The above operations are mainly to check whether the quality of the stainless steel instrument tube is qualified. Here, Mingxin Stainless Steel wishes everyone to buy qualified and favorite products.
