309 Stainless Steel

309 Stainless Steel Grades

 

Stainless Steel 309 is classified as a highly alloyed stainless steel. It contains less nickel in its composition than Type 310 and a lower carbon amount than its Type 309 counterpart. The reduced nickel allows for better resistance against hydrogen sulfide, especially at high temperatures. Additionally, the lower amount of carbon in its composition gives Stainless Steel 309S utilization in areas where high temperature gases may pose a problem. As such, it is commonly applied in the manufacturing of furnaces, exhaust systems and containers exposed to high temperatures.

Applications

• Automotive industry 
• General Engineering
• Pharmaceuticals
• Sugar Industry  
• Food Grade Infrastuctres

 

Checklist on Selecting SS 309

Pipe & Tube	Flanges	Buttweld Fitting
Forged Fitting	Round Bar	Sheet & Plate

 

Chemical Composition

Element	SS 309
Ni	12.0 – 15.0
C	0.08 max
Mn	2.0 max
P	0.045 max
S	0.030 max
Si	1.0 max
Cr	22.0 – 24.0
Mo	0.75 max