Standards And Specifications For Stainless Steel Pipes

Stainless steel pipe implementation standard: GB/T14976-94 stainless steel seamless steel pipe for fluid transmission.
GB/T14975-94 Structural stainless steel seamless steel tubes (replace GB/-) - Boiler tubes, stainless steel tubes for heat exchangers.
The specific part specification table is as follows:
Stainless steel pipes are resistant to weak corrosive media such as air, steam, water, and chemically corrosive media such as acids, alkalis, and salts. In practical applications, steels resistant to weak corrosive media are often called stainless steel, while those resistant to chemical media Steel is called acid-resistant steel.

Due to the difference in chemical composition between the two, the former is not necessarily resistant to chemical media corrosion, while the latter is generally stainless. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel.

What are the benefits of stainless steel pipes?
1. Corrosion resistance, no scaling. It can avoid the worry of macular rust on the water basin and bathtub caused by the corrosion of the pipeline. Cast iron pipes are easy to corrode and rust, and have a short service life, and the corrosion and scaling of pipes are easy to cause blockage.
2. Coefficient of thermal expansion. The stainless steel pipe is 1/4 of other plastic pipe products, and the high expansion coefficient will cause the water pipe to leak when the ambient temperature changes.
3. Tensile strength. The tensile strength of stainless steel pipes is ≥, the tensile strength of plastic pipes is ≥49, and the strength of plastic products is only 9.2% of that of stainless steel. Insufficient strength is one of the factors that cause water pipes to leak due to external forces.
4. Beautiful appearance. The inner and outer walls of the product are smooth, the fluid resistance is small, the color is soft, and the shape is beautiful. Cast iron pipes are prone to rust and are unsightly.
5. Easy to connect. The connection method of the stainless steel pipe is a compression connection, which is low in cost, fast in speed, simple in operation, safe and reliable. ABS pipes are bonded with ABS sol; while cast iron metal pipes are generally connected with threads, which are easy to leak, and other stainless steel pipes are connected by welding, which is costly and takes a long time to construct.
6. Ultraviolet radiation. Stainless steel pipes have no aging phenomenon. Plastic pipes age badly under light.
7. High temperature resistance. The highest service temperature of thin-walled stainless steel pipes can reach above ℃, and the lowest temperature can reach -20℃. The thermal deformation temperature of ABS pipes is 80℃. Plastic pipes are not resistant to high temperatures and will produce toxic gases when burned.
8. Environmental performance. Stainless steel pipes can be recycled %. ABS and PPR pipes cannot be recycled.
9. Long service life. Under the specified long-term continuous working pressure, the service life can reach more than one year. The cast iron pipe is easy to corrode and rust, and the service life is short. The PPR is less than 1/4 of that of stainless steel.

Dingshang Stainless Steel Co., Ltd. is a stainless steel pipe manufacturer and stainless steel tube supplier in China. It specializes in wholesale and sales of stainless steel pipes/tubes. Welcome to consult.