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).

Advantages of Stainless Steel Plate

1. Corrosion resistance
Stainless steel plates can resist the erosion of acids, alkalis, and salts, and are generally used for high-temperature applications. High temperature applications require high sensitivity of materials, and stainless steel plates can meet this requirement.
2. High temperature oxidation resistance
Stainless steel plates also have high high-temperature oxidation resistance, but the oxidation rate of stainless steel plates is also affected by the environment, and oxidation may not always occur.
3. Physical performance
The thermal conductivity of metal determines the total heat transfer coefficient of metal, and the heat transfer coefficient of stainless steel plate is superior to other metals with higher thermal conductivity.

Stainless steel plate 309/309H/309S wet corrosion

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.

Stainless steel plate 309/309H/309S chemical composition

Stainless steel plate 309/309H/309S physical properties

Stainless steel plate 309/309H/309S applications

Furnaces — burners, doors, fans, piping and recuperators

Fluidized Bed Furnaces — grids, piping, wind boxes

Paper Mill Equipment

Petroleum Refining — catalytic recovery systems, recuperators

Power Generation — pulverized coal burners, tube hangers

Thermal Processing — annealing covers and boxes, burners grids, doors, fans, lead pans and neutral salt pots, muffles and retorts, recuperators, walking beams

Waste Treatment — incinerators, rotary kilns and calciners

lndustries Served

Every industry has its unique set of material specifications and needs. That’s why you can count on the exceptional experience and industry knowledge of the professionals at Kuaima Steel - Meeting the Exact Needs of Every Industry That Uses steel.

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  Machinery manufac- turing industry
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  Power Generation
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  Oil & Gas
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  Manufacturing
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  Construction
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  Ship Building
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  Automobile manufacturing
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  Pipe Fabrication

Stainless steel plate 309/309H/309S Outlet

We are a well known worldwide exporter of Stainless steel plate 309/309H/309S Qatar, Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Italy, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Philippines, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, China, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.