SS304 is the most widely used stainless steel grade because of its excellent corrosion resistance, durability and versatility. It contains approximately 18% chromium and 8% nickel, making it suitable for a wide range of industrial and commercial applications. SS304 offers excellent weldability, formability and strength while maintaining a clean and attractive surface finish. It is extensively used in food processing equipment, kitchen appliances, storage tanks, piping systems, architectural structures and chemical processing units. Its outstanding resistance to oxidation and corrosion makes it one of the most preferred stainless steel grades worldwide.
| Size Range | 3 mm – 300 mm |
|---|---|
| Grades | SS304 / 304L |
| Standards | ASTM A240, ASTM A276, ASTM A312 |
| Applications | Food Processing, Kitchen Equipment, Tanks, Piping, Architecture |
SS316 stainless steel contains molybdenum which significantly improves corrosion resistance, especially in marine and chloride-rich environments. It provides superior resistance to pitting and crevice corrosion compared to SS304. This grade is widely used in marine equipment, pharmaceutical plants, chemical industries, pressure vessels and heat exchangers. SS316 maintains excellent strength at elevated temperatures and offers outstanding durability in highly corrosive conditions. Its long service life and low maintenance requirements make it a preferred material for critical industrial applications.
| Size Range | 5 mm – 300 mm |
|---|---|
| Grades | SS316 / 316L |
| Standards | ASTM A240, ASTM A276, ASTM A312 |
| Applications | Marine Equipment, Chemical Plants, Pharmaceutical Industry |
SS321 is a titanium-stabilized austenitic stainless steel designed for excellent resistance to intergranular corrosion after exposure to high temperatures. It is particularly suitable for applications operating between 427°C and 816°C. SS321 provides excellent oxidation resistance, good weldability and high-temperature strength. It is commonly used in aircraft exhaust systems, heat exchangers, refinery equipment, boilers and thermal processing industries where prolonged exposure to heat occurs.
| Size Range | 6 mm – 250 mm |
|---|---|
| Grades | SS321 |
| Standards | ASTM A240, ASTM A276 |
| Applications | Aircraft Components, Heat Exchangers, Boilers, Refineries |
SS420 is a martensitic stainless steel known for its high hardness, strength and wear resistance. It can be heat-treated to achieve excellent mechanical properties while retaining moderate corrosion resistance. SS420 is widely used in cutting tools, surgical instruments, valves, shafts, pump components and industrial machinery. Its ability to maintain hardness after heat treatment makes it ideal for demanding engineering and manufacturing applications.
| Size Range | 6 mm – 200 mm |
|---|---|
| Grades | SS420 |
| Standards | ASTM A276, ASTM A582 |
| Applications | Surgical Instruments, Valves, Pumps, Shafts, Cutting Tools |