Quick Answer: Is 304 Or 409 Stainless Steel Better?

How long will a stainless steel exhaust last?

8 yearsA 409 stainless steel exhaust system should last at least 8 years in almost all climates and weather conditions, but it won’t last forever.

2.

304 stainless.

304 is sometimes referred to as “marine grade” stainless because it is very resistant to corrosion from salt water..

Is 304 stainless steel the best?

As the most widely used of all stainless steel, 304 stainless steel is most notably present in industrial applications and kitchen equipment. It is a highly heat-resistant grade, and offers good corrosion resistance to many chemical corrodents, as well as industrial atmospheres.

What is 409 grade stainless steel?

Grade 409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.

Are stainless steel exhausts worth it?

It’s an alloy metal made from iron with 10-20 per cent chromium and is well known for its resistance to corrosion. … The only downside is money-related: a better metal inevitably means a more expensive product, but stainless exhausts are still reasonably affordable and worth the extra cash, given the benefits.

What are the benefits of a stainless steel exhaust?

Performance. Performance wise, stainless steel exhausts will drastically improve the performance of your car, too. Typical exhausts are susceptible to overheating which is one of the most common reasons for exhaust repair. Thankfully, stainless steel exhausts cool down the gases and prevent this whole process.

Will stainless steel rust?

Stainless steel remains stainless, or does not rust, because of the interaction between its alloying elements and the environment. Stainless steel contains iron, chromium, manganese, silicon, carbon and, in many cases, significant amounts of nickel and molybdenum.

Is 304 stainless steel rust proof?

Both steels are durable and provide excellent resistance to corrosion and rust. 304 stainless steel is the most versatile and widely used austenitic stainless steel in the world, due to its corrosion resistance. 304 stainless is also cheaper in cost compared to 316, another reason for its popularity and widespread use.

How good is 409 stainless steel?

409 Contains a minimum of 10.5% chromium, thus the moniker barely stainless steel. In addition to minimal chromium content, 409 stainless has three additional properties that make it an attractive product for substitution: it is the lowest cost stainless, it has good oxidation resistance and excellent formability.

What is the best stainless steel for exhaust systems?

304 Stainless is the highest quality stainless steel used in the automotive world, and it is most often found in exhaust tips, clamps, bolts and other small exhaust components where strength is very important.

Does stainless steel exhaust sound better?

Mild steel manifolds (which absorb sound better than stainless steel) will not resonate the sound of each cylinder firing through it as much. Mild steel exhausts generally have a thicker wall. Stainless sounds more zingy due to the metal being thinner.

Does 409 stainless steel rust?

409 stainless steel will rust on the surface. However, this is not a concern for most people because it is hidden under the vehicle. Surface rust can be cleaned with a wire brush. 304 stainless is the highest quality material used for exhaust parts.

Is 409 safe on stainless steel?

Stainless Steel Whether it’s your washer and dryer or your dishwasher, make sure your shiny steel surfaces remain stain-and-streak free with Formula 409®.