309 Stainless Steel Plate Supplier, 309 Stainless Steel Plate Manufacturer, 309 Stainless Steel Plate Provider.

In the demanding world of thermal processing and chemical engineering, equipment longevity depends entirely on material quality. At Salem Stainless Steel Suppliers Pvt. Ltd., we take pride in being a premier supplier, and stockholder of high-grade SS 309 Plates. 

Our stainless steel plates are manufactured using superior-grade raw materials sourced from reliable market vendors and processed with advanced production technology to ensure consistent quality and performance. Engineered for superior oxidation resistance and high-temperature strength, our Type 309 plates are the gold standard for industries that cannot afford to compromise on durability.

While similar to the 310S series, SS 309 Plates offer a specific balance of chromium and nickel that makes them exceptionally resistant to heat and corrosion. These plates are manufactured using modern tools and the latest technology, ensuring they meet and exceed global product quality standards.

Key Benefits:

  • Superior Oxidation Resistance: Designed to handle high-heat environments without scaling.
  • Corrosion Protection: Excellent resistance to marine atmospheres and chemical exposure.
  • High-End Manufacturing: Sourced from reliable market vendors and processed with cutting-edge machinery.

Chemical Composition of SS 309 Plates:

Element Symbol Percentage (%)
Chromium Cr 22.0 – 24.0
Nickel Ni 12.0 – 15.0
Manganese Mn 2.0 max
Silicon Si 1.00 max
Carbon C 0.20 max
Phosphorus P 0.045 max
Sulfur S 0.03 max

Mechanical Properties of Stainless Steel 309 Plates:

Property Metric Value Imperial Value
Tensile Strength (Ultimate) 620 MPa (min) 90,000 psi (min)
Yield Strength (0.2% Offset) 310 MPa (min) 45,000 psi (min)
Elongation (in 50mm) 40% (min) 40% (min)
Hardness (Brinell) 217 HB (max) 217 HB (max)
Hardness (Rockwell B) 95 HRB (max) 95 HRB (max)

Physical Properties of 309 Plates:

Property Metric Value
Density 8.0 g/cm³
Melting Range 1400 – 1450 °C
Specific Heat 502 J/kg·K
Electrical Resistivity 0.78 µΩ·m
Modulus of Elasticity 200 GPa
Thermal Conductivity 14.2 W/m·K
Coefficient of Thermal Expansion 14.9 µm/m·°C

Product Specifications:

Surface Finishes & Customization

We offer a diverse range of surface treatments to meet both functional and aesthetic requirements:

  • Industrial Finishes: NO.1 (Hot Rolled), 2B (Cold Rolled), 2D, BA.
  • Decorative & Precision: NO.4 (Brushed), NO.8, 8K, Mirror, Hairline.
  • Specialized Textures: Checkered, Embossed, Sand Blasted, Etc
Category Specification Details
Item 309 Stainless Steel Plate (Hot Rolled & Cold Rolled)
Global Standards JIS, AISI, ASTM, GB, DIN, EN, and more
Thickness Range 0.2 mm to 20 mm
Width Options 1000mm, 1219mm, 1500mm, 1800mm, up to 3500mm
Length Options 2000mm, 2440mm, 3000mm,
5800mm, 6000mm (Custom lengths available)
Hardness Tempers Soft, Quarter Hard, Half Hard, Hard, Spring Hard

Applications of 309 Plates:

AISI 309 stainless steel plates are widely used in industries that require excellent oxidation resistance and high-temperature strength. With higher chromium and nickel content than 304 and 316 grades, SS 309 plates perform exceptionally well in elevated temperature environments.

Below are the major applications:

 1. Heat Treatment & Furnace Components

  • Furnace linings
  • Burner parts
  • Heat treatment baskets and trays
  • Kiln liners
  • Retorts

SS 309 plates resist scaling and oxidation at temperatures up to ~1000°C, making them ideal for thermal processing equipment.

 2. Power Generation Industry

  • Boiler baffles
  • Heat exchangers
  • Expansion joints
  • Superheater components

Their high-temperature strength ensures reliability in continuous heat exposure environments.

 3. Chemical & Petrochemical Industry

  • High-temperature reactors
  • Pressure vessels
  • Refinery equipment
  • Flue gas systems

SS 309 plates offer excellent resistance to oxidation and moderately corrosive chemical environments.

 4. Automotive & Exhaust Systems

  • Exhaust manifolds
  • Mufflers
  • Thermal shields

The grade’s ability to withstand thermal cycling makes it suitable for exhaust and emission control systems.

 5. Cement & Metallurgical Industries

  • Rotary kiln components
  • Sintering equipment
  • Conveyor systems exposed to heat

SS 309 plates maintain structural integrity under continuous thermal stress.

 6. Cryogenic & Thermal Applications

Although primarily known for heat resistance, SS 309 also performs reliably in fluctuating temperature conditions.

Why Procurement Teams Choose Our SS 309 Plates..

  • Versatile Hardness: Whether you need a Soft annealed plate for complex forming or Spring Hard for high-tension components, we provide the exact temper required for your project.
  • Wide Range: With widths up to 3500mm, we supply some of the largest plates in the market, reducing the need for extra welding in large-scale tanks and furnace walls.
  • Guaranteed Quality: Every plate is backed by a Material Traceability Report and an MTC (Mill Test Certificate) according to EN 10204/3.1B, ensuring that the product you receive matches your order perfectly.

Note: As a leading provider and investor, Salem Stainless Steel Industry sources only the “awesome nature” of raw materials from reliable vendors to ensure consistent performance in every batch.

If you are looking for reliable and high-quality SS 309 Plates, Salem Stainless Steel Suppliers Pvt. Ltd., is your trusted partner. Contact us today for the best pricing and technical assistance for your project 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.