APPLICATIONS:

Alloys 309 and 309S are used exclusively for their high temperature oxidation resistance, excellent high temperature strength, along with their resistance to creep deformation and environmental attack. Some examples include, but are not limited to:

• Heating elements
• Aircraft and jet engine parts
• Heat exchangers
• Carburizing annealing products
• Sulfite liquor handling equipment
• Kiln liners
• Boiler baffles
• Refinery and chemical processing equipment
• Auto exhaust parts

STANDARDS:

• ASTM/ASME: UNS S30900/S30908
• EURONORM: FeMi35Cr20Cu4Mo2
• DIN: 2.4660

HEAT TREATMENT

• Cannot be hardened through heat treatment because the consist solely of austenite at room temperature
• Higher tensile and yield strengths that can be obtained through cold working and not followed by full annealing are not stable at the higher temperatures where these alloys are used
• Creep properties can be negatively affected by the use of cold worked material at these higher temperatures

FABRICATION

• Can be roll formed, stamped, and drawn readily
• In process annealing is often required to reduce hardness and increase ductility

WELDABILITY

• The austenitic class of stainless steels is generally considered to be weldable
• Generally considered to have weldability equivalent to the most common alloys of the austenitic class 304 and 304L
• Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion.

Chemical Composition:

FAQ:

Q1. What are your company's main products ?

A1: Our main products are stainless steel plate/sheet, coil, round/square pipe, bar, channel, etc.

Q2. How do you control quality ?

A2: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.

Q3. What are the advantages of your company ?

A35: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.

Q4: What is the terms of packing?

A3: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers requirement.

Q5:What is your delivery time?

A4: For stocks, we could transport the goods to loading port within 7 days after we received your deposit

For production period, it usually takes about 15 days-30 days after receiving the deposit.

Q6. Can you provide sample ?

A7: We can provide the samll samples in stock for free, as long as you contact us.

Customized samples will take about 5-7days.

Q7. How many coutries you already exported ?

A6: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, Vietnam, Thailand, South Korea etc.