309 stainless steel sheet

309 Stainless Steel Sheet



Product Description

309 Stainless Steel Sheet

309 stainless steel sheet

 

309/309S austenitic stainless steel is typically used for elevated temperature applications. 309 stainless steel sheet is a highly alloyed austenitic stainless steel used for its excellent oxidation resistance, high temperature strength and creep resistance. The lower nickel content of SX309 improves resistance to sulphur attack at high temperature. It is tough and ductile, and can be readily fabricated and machined.

 

309S is the low-carbon version of 309, and is recommended for applications where sensitisation, and subsequent corrosion by high temperature gases or condensates during shutdown may pose a problem.309 is manufactured to ASTM A 167 and 309S to ASTM A240 specifications.

 

Grade 309 stainless steel sheet is used often for higher temperature applications. While its oxidation resistance surpasses that of alloy 310, its resistance to corrosion is equivalent to that of alloy 310. Alloy 309 is highly weldable and cold formable, although it does require stronger forming machines and continuously increasing pressure. Typical machining methods are used for stainless steel grade 309, but it is tougher and does tend to harden more quickly. Like 310 Stainless Steel, Grade 309 Stainless Steel has a high chromium and nickel content which grants excellent resistance to aqueous corrosion.

 
Applications of 309 Stainless Steel Sheet:

Chemical Composition (ASTM A240)

 SX  C  Mn  P  S  Si  Cr  Ni
 309
309S
 0.20 max
0.08 max
 2.00
max
 0.045
max
 0.030
max
 1.00
max
 22.0 –
24.0
12.0 –
15.0