Get to know steel and its grades
Types of Steel
Steel comes in a variety of grades, all of which are best suited to specific applications. At Malian, we use numerous materials to produce the best exhaust for the application. These materials include: Mild Steel, 201 stainless Steel, 304 Stainless Steel and Titanium. Below you can find out more about each.
201 Stainless Steel
201 grade combines the following characteristics:
- Good pitting and crevice corrosion resistance similar to 304
- Higher strength than 304. 350 MPa minimum 0.2% PS compared to 230 MPa for 304 Stainless.
- Higher work hardening rate than 304 leading to different forming characteristics.
- High manganese leads to greater refractory erosion in production.
201 is a typical austenitic manganese bearing stainless steel. The 200 series steels vary greatly depending where in the world they are produced. In India and China for example it is used for kitchen utensils and catering equipment. This is due to the scarcity of nickel in these countries. Europe has a lower usage of 201 Stainless.
304 Stainless Steel
304 and its variants are regarded the most common stainless grades in the SSAS database. Approx. composition – 18% CR, 8% Ni. (Composition ranges can vary between EN and ASTM standards).
This grade has the following characteristics:
- Good corrosion resistance
- Good weldability
- Excellent ductility giving stretch formability in pressings
- Hygienic surface
- Work hardening for spring properties
- Ease of manufacture at steel mill
Titanium is unique as it is around half the weight of stainless steel but, in contrast, it is of course, a lot more expensive. Titanium is perfect for race use, when looking to drop additional weight. All the exhausts we produce can be made in titanium, but you should expect prices to be at least three times more.