Commonly used grades of Stainless Steel Sheet
300 Sereis Stainless Steel
austenitic chromium-nickel alloys
300 Series stainless steels are classified as austenitic, and are hardenable only by cold working methods. These grades of stainless have chromium (approx. 18 to 30%) and nickel (approx. 6 to 20%) as their major alloying additions. Type 304 is the most widely used alloy of all stainless steels. 300 Series Stainless steel alloys resist corrosion, maintain their strength at high temperatures and are easy to maintain.
- Grades : 301, 302, 303, 304, 304/L, 304/H, 316/L, 317/L, 317LMN, 321/321H, 347/347H, 309/309S, 310/S, 310H, 330
400 Series Stainless Steel
ferritic and martensitic chromium alloys
The 400 series group of stainless steels has an 11 percent chromium and 1-percent manganese increase, above the 300 series group. The 400 series is susceptible to rust and corrosion under some conditions. Heat-treating will harden the 400 series. The 400 series of stainless steels have higher carbon content, giving it a martensitic crystalline structure. This provides high strength and high wear resistance. Martensitic stainless steels aren’t as corrosion resistant as the austenitic types.
- Grades : 403, 405, 409, 410, 410S, 410HT, 416, 416HT, 420, 422,
430, 440C