Stainless steel welded pipes have been increasingly recognized and used in various industries, including light industry, pharmaceuticals, papermaking, sewage treatment, water supply, machinery, and a considerable proportion. So the car muffler also uses stainless steel welded pipes. So, should we use 304 or 409 stainless steel welded pipes?
There are two common materials for stainless steel welded pipes used in car mufflers: 304 and 409 stainless steel.
304 stainless steel mufflers are becoming more corrosion-resistant and heat-resistant. Up to 650 degrees.
409 stainless steel muffler is prone to rusting and has poor corrosion resistance. It can also withstand high temperatures up to 650 degrees.
Advantages of 304:
1. As a car exhaust pipe, 304 stainless steel would be better. Due to the high temperature at the exhaust outlet of the car engine, it cannot reach 650 degrees. Both 409 and 304 are satisfied. However, 304 has good corrosion resistance. Especially suitable for humid and hot climates in the south.
2. In terms of price, 304 stainless steel is also more than twice that of 409. The performance is definitely much better than 409L.
Good cars have started using 304 stainless steel for exhaust pipes. This is definitely a trend. Of course. If you want to buy low-priced ones, you can also buy 409 stainless steel welded pipes.
