ASTM/ASME SA240 Stainless Steel 309/309S Sheets and Plates

Alloys 309 and 309S are austenitic chromium-nickel stainless steels that are often used for higher temperature applications. Due to their high chromium and nickel content, Alloys 309 and 309S are highly corrosion resistant, have outstanding resistance to oxidation, and excellent heat resistance while providing good strength at room and elevated temperatures. The only significant difference between 309 and 309S is the carbon content. Alloy 309S has a much less carbon composition which minimizes carbide precipitation and improves weldability. Alloy 309/309S (UNS S30900/S30908) austenitic stainless steel is typically used for elevated temperature applications. Its high chromium and nickel content provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic Alloy 304.

Alloy 309 (UNS S30900) is an austenitic stainless steel developed for use in high temperature corrosion resistance applications. The alloy resists oxidation up to 1900°F (1038°C) under non-cyclic conditions. Frequent thermal cycling reduces oxidation resistance to approximately 1850°F (1010°C). Because of its high chromium and low nickel content, Alloy 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The alloy is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. Alloy 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.

Alloy 309 is not designed for service in wet corrosive environments. The high carbon content, which is present to enhance creep properties, has a detrimental effect on aqueous corrosion resistance. The alloy is prone to intergranular corrosion after long term exposure at high temperatures. However, due to its high chromium content (23%), Alloy 309 is more corrosion resistant than most heat resistant alloys.

Product Features:

• Corrosion resistant
• Accurate dimensions
• Can sustain high pressure & temperature load
• Rust proof finish
• Smooth transition from flange thickness to pipe
• Ensure excellent stress distribution

Specification:

Material & Grade :

Chemical Composition :

Physical Properties :

Other grades also available :

Product Usage & Application :

• Usefull in Paper & Pulp Companies
• Usefull in High Pressure Applications
• Usefull in Oil and Gas Industry
• Usefull in Chemical Refinery
• Usefull in Pipeline
• Usefull in High Temperature Application
• Usefull in Water Pipe Line
• Usefull in Nuclear Power Plants
• Usefull in Food Processing and Dairy Industries
• Usefull in Boiler & Heat Exchangers

Why Choose Us :

• You can get the perfect material according to your requirement at the least possible price.
• We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.
• The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)
• e guarantee to give a response within 24hours(usually in the same hour)
• You can get stock alternatives, mill deliveries with minimizing manufacturing time.
• We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.

Tests we carry out (including both Destructive and Non-Destructive) :

• Positive material recognition
• Mechanical examining like tensile, Elongation and reduction of area.
• Large-scale test
• Chemical examination-Spectro analysis
• Firmness test
• Pitting protection test
• Small tests
• X-ray test
• Impact analysis
• Eddy current examining
• Hydrostatic analysis
• Prompt test

Packing :

• Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.
• We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

We Export To :

Kazakhstan, Algiers, Johannesburg, Pretoria, Dakar, Ghana, Uganda, Mozambique, Iraq, Subra al-Haymah, Australia, Yaoundé, South Africa, Saudi Arabia, Kampala, Benin, Ethiopa, Kuwait, Luanda, Abu Dhabi, Peru, Sudan, Colombia, Nairobi, Turkey, Russia, Khartoum, Kano, UAE, Bahrain, Cape Town, Trinidad and Tobago, Dar es Salaam, Nigeria, Antananarivo, Tripoli, Addis Ababa, London, Douala, Lebanon, Tunisia, Ouagadougou, Mogadishu, Harare, Mbuji-Mayi, Qatar, Zaria, Soweto, Omdurman, Angola, Alexandria, Dubai, Yemen, Casablanca, Africa, Oman, Giza, Kinshasa, Bamako, UK, Houston, Accra, Algeria, Argentina, Cairo, Chine, Kolwezi, Hong Kong, Abidjan, Vietnam, Port Elizabeth, Maputo, Maiduguri, Canada, Port Harcourt, Singapore, Egypt, Venezuela, Freetown, Ibadan, Iran, Fez, Malaysia, Mexico, Cameroon, New York, Indonesia, Italy, Azerbaijan, Israel, Conakry, Brazil, Democratic Republic of the Congo, New Zealand, Morocco, Jordan, United States, Thailand (Bangkok), Cyprus, Sri Lanka, Rabat, Bulawayo, Kaduna, Durban, Colombo, Germany, Lubumbashi, Lagos, Brazzaville.

We Supply To :

Tripura, Ahmedabad, Kolkata, Lucknow, Andhra Pradesh, Pune, Ambala, Maiduguri, Buxar, Puducherry, Karnataka, Maharashtra, Bhiwadi, Surat, Mizoram, Manipur, Delhi, Bangalore, Kerala, Ballia, Jamalpur, Chennai, Jaipur, Hyderabad, Indore, Patna, Agra, West Bangal, Ranchi, Durg, Bilaspur, Raipur, Satpura, Malwa, Kanpur, Dehradun etc.