Characteristic

AISI 309S stainless steel is an austenitic stainless steel . Cited properties are appropriate for the annealed condition. S30908 is the UNS number. It contains less nickel in its composition , moderately low tensile strength and lower amount of carbon in its composition among the wrought austenitic stainless steels thus utilization in areas where high temperature gases may posea problem. Type 309S is additionally characterized by its resistance to oxidation and creep, along with its ability to withstand high temperatures. Moist environmentshave no effect on it, due to the higher levels of nickel and chromium in its makeup. Because of this, it is often utilized in marine environments in place of StainlessSteel 304, as it displays a higher resistance. Despite its excellent weldability, Type 309S does have a tendency to work harden.

Application

1)Auto exhaust components

2)Refinery and also chemical processing machines

3)Boiler baffles

4)Kiln liners

5)Sulfite liquor managing machine

6)Carburizing annealing products

7)Heat exchangers

8)Aircraft and also jet engine parts

9)Heating components

309S Stainless Pipe Chemical Composition

Mechanical Properties Stainless Steel 309S

Physical properties

Thermal performance

309S stainless steel is an austenitic chromium-nickel stainless steel with excellent corrosion and heat resistance. The thermal properties of 309S stainless steel include high melting point, high thermal conductivity and low coefficient of thermal expansion. These properties make 309S ideal for high temperature applications, such as furnaces and industrial heat exchangers.

Oxidation resistance

309S has a maximum carbon content of 0.08%, while grades 304 and 310 have a carbon content of 0.04% and 0.05%, respectively. For this reason, 309S is commonly used in welding applications that require frequent fuses, such as the food, beverage and pharmaceutical industries. In addition, 309S has good oxidation resistance and can withstand temperatures up to 1900°F before scaling.

Product Testing

Hydrostatic test
Flaw detection test
Lab test

Package Process

1.with plastic cap to protect both ends

2.weaving bag wrapped outside the pipe

3.then pack into wooden case.

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Company introduction

Zheheng steel is one  incorporate of manufacturer, Exporter ,consultant ,stockist company specialized in the area of stainless steel tubing , pipe fittings ,Flanges and other stainless steel grade accessories . It is one-stop-shop company ,our team have more than 20 years experience in stainless steel field ,especially in heat exchanger tubing and large diameter pipes with ultra-long, ultra-thin, ultra-thick or ultra-large various and some special-purpose projects .

After years of efforts,we now became more and more stronger , we have consist of four company respectively located in wenzhou(headquarter),lishui,chengdu city,two factorys of ss stainless pipe workshop in lishui ,another one ss pipe fittings workshop located in wenzhou ,one domestic sales company located in chengdu.

On Time, On Budget, For Over 20 Years

Our reputation is for providing competitive prices, technical services and on time deliveries for every project for over 20 years. Our inventory is computerized so our employees can respond quickly to all your requests. If a specific product is not in stock when you request it, we guarantee same day shipping or shortest lead time available.

Our regular feture products are 304/304L,316L, 321,310s,austentic serious ,duplex steel 2205 ,hastelloy c276,inconel 625 ,and super stainless steel 904L , All of our products meet or exceed AISI/ASTM A213 ,A269,A312,EN 10216,GHOST 9941 ,GB,JIS standard. per your specific requirements and include full documentation.

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