Discover high-quality Stainless Steel 321 Flats from Salem Stainless Steel Suppliers Pvt. Ltd., your trusted source in Chennai for premium stainless steel products. Engineered for superior corrosion resistance and high-temperature performance, our SS 321 flats are ideal for demanding industrial applications. Whether you’re in aerospace, chemical processing, or fabrication, we deliver precision-cut flats that meet ASTM A240 standards, ensuring reliability and value.

Stainless steel 321 flats are austenitic stainless steels similar to Grade 304 but with a critical addition of Titanium. Stabilized with Titanium, Grade 321 is specifically designed to perform in the “carbide precipitation range. This Titanium content has a stronger affinity for carbon than chromium does, which prevents the formation of chromium carbides at grain boundaries during welding or high-heat exposure.

Chemical properties of SS 321 Flats:

Element Composition (%)
Carbon (C) 0.08 max
Chromium (Cr) 17.0 – 19.0
Nickel (Ni) 9.0 – 12.0
Titanium (Ti) 5 × C min (up to 0.70 max)
Manganese (Mn) 2.0 max
Silicon (Si) 0.75 – 1.0 max
Phosphorus (P) 0.045 max
Sulfur (S) 0.030 max
Nitrogen (N) 0.10 max
Iron (Fe) Balance

Mechanical Properties of Stainless Steel 321 Flats:

Property Value (min)
Tensile Strength 515 MPa
Yield Strength (0.2% Proof) 205 MPa
Elongation (in 50mm) 40%
Rockwell B Hardness (HR B) 95 max
Brinell Hardness (HB) 217 max

Physical Properties of 321 SS Flats:

Property Value
Density 8027 kg/m³
Modulus of Elasticity 193 GPa
Thermal Conductivity 16.1 W/m·K (100°C)
Specific Heat (0-100°C) 500 J/kg·K
Electrical Resistivity 720 nΩ·m
Melting Range 1400-1425°C

Product Specifications:

Property Details
Product Stainless Steel 321 Flats
Shape Rectangle
Length Upto 10 ft
Min. Order Quantity 200 Kgs

Industrial Applications of 321 Flats:

  • Aerospace Engineering: Jet engine components, exhaust stacks, and piston engine.
  • Chemical Processing: High-temperature chemical equipment and expansion joints.
  • Refinery Equipment: Polythionic acid service environments and thermal oxidizers.
  • Power Generation: Boiler tubes, steam lines, and superheater headers.

Ensure your project stands the test of time and temperature. Contact us today for a competitive quote on stainless steel 321 flats or to discuss your custom sourcing requirements.

Countries We Export

Macau, Philippines, Estonia, Slovakia, India, Switzerland, France, Gambia, United States, Nepal, Iran, Australia, Thailand, Gabon, Zimbabwe, Bangladesh, Angola, Lithuania, Kuwait, Kazakhstan, Trinidad & Tobago, Puerto Rico, Singapore, Mexico, Azerbaijan, Brazil, Bulgaria, United Arab Emirates, Tibet, Greece, South Africa, Afghanistan, Sri Lanka, Italy, China, Serbia, Turkey, Mexico, Bolivia, Peru, Chile, Belarus, Yemen, Namibia, Qatar, Algeria, Libya, Nigeria, Japan, Poland, Austria, Bhutan, Nigeria, Portugal, Czech Republic, Croatia, Jordan, Hungary, Finland, Pakistan, Spain, South Korea, Ecuador, Denmark, Canada, Kenya, Saudi Arabia, Vietnam, Sweden, Malaysia, Bahrain, Costa Rica, Venezuela, Israel, Netherlands, United Kingdom, New Zealand, Russia, Morocco, Poland, Indonesia, Hong Kong, Egypt, Oman, Norway, Chile, Iran, Lebanon, Taiwan, Ghana, Romania, Mongolia, Ukraine, Colombia, Tunisia, Ireland, Iraq, Belgium, Argentina, Germany.

Cities We Supply

Calgary, Al Jubail, Hong Kong, Bhopal, Jeddah, Toronto, Ulsan, Aberdeen, Thiruvananthapuram, Petaling Jaya, Nashik, Houston, Montreal, Cairo, Ernakulam, Atyrau, Karachi, Haryana, Istanbul, Jakarta, Sharjah, Nagpur, Dallas, Ranchi, Algiers, Doha, Santiago, Geoje-si, Singapore, Chennai, Jamshedpur, Perth, New Delhi, Tehran, Vadodara, New York, Caracas, Ahmedabad, Edmonton, Kanpur, Busan, Mumbai, Secunderabad, Bengaluru, Kolkata, Pimpri-Chinchwad, Manama, Vung Tau, Melbourne, Bangkok, Colombo, Ankara, Bogota, Sydney, Milan, Port-of-Spain, Abu Dhabi, Thane, Ahvaz, Visakhapatnam, Rajkot, Jaipur, Indore, Kuwait City, Gurgaon, Baroda, Navi Mumbai, La Victoria, Surat, Ludhiana, Lahore, Hanoi, Riyadh, Faridabad, Hyderabad, Coimbatore, Mexico City, Dubai, Al Khobar, Rio de Janeiro, Pune, Chiyoda, Moscow, Lagos, London, Madrid, Granada, Ho Chi Minh City, Brisbane, Chandigarh, Seoul, Courbevoie, Los Angeles, Gimhae-si, Dammam, Howrah, Muscat, Noida, Kuala Lumpur, Pondicherry, Tamil Nadu.