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You are here: Home- Selling list309/309S stainless steel Chemical Composition,309 / 309S stainless steel Machining service

309/309S stainless steel Chemical Composition,309 / 309S stainless steel Machining service

Posted:1/19/2015 10:42:11 PM

309/309S 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.

Due to their high chromium and nickel content, Alloys 309/309S stainless steel 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.

309/309S stainless steel Chemical Composition: (A167, A240)

Element Type
309
Type
309S
Carbon 0.20 max. 0.08 max.
Manganese 2.00 max. 2.00 max.
Sulfur 0.030 max. 0.030 max.
Phosphorus 0.045 max. 0.045 max.
Silicon 0.75 max. 0.75 max.
Chromium 22.0 – 24.0 22.0 – 24.0
Nickel 12.0 – 15.0 12.0 – 15.0

309/309S stainless steel Mechanical Properties: (ASTM A167, A240)

Type Yield Strength 0.2% offset (KSI) Tensile Strength (KSI) % Elongation (2" Gauge length) Hardness Rockwell
309 30 min. 75 min. 40 min. HRB 95 max.
309S 30 min. 75 min. 40 min. HRB 95 max.

Katalor Enterprises as a 309 / 309S stainless steel Manufacturer , we also can supply 309 / 309S stainless steel Machining service , so any need in 309 / 309S stainless steel , please contact us!


 

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