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309/309S Stainless Steel Pipe

Classification :

309 and 309S are austenitic chromium-nickel stainless steels that are typically used for higher temperature applications. Due to its high chromium and nickel content, 309 and 309S alloys have a high degree of corrosion resistance, excellent oxidation resistance and excellent heat resistance, while providing good strength at room temperature and high temperature. The only significant difference between 309 and 309S is the carbon content. The 309S alloy has less carbon, which minimizes carbide precipitation and improves weldability.

Keywords:

Stainless Steel Pipe

309/309S Stainless Steel Pipe Description

309 and 309S are austenitic chromium-nickel stainless steels that are typically used for higher temperature applications. Due to its high chromium and nickel content, 309 and 309S alloys have a high degree of corrosion resistance, excellent oxidation resistance and excellent heat resistance, while providing good strength at room temperature and high temperature. The only significant difference between 309 and 309S is the carbon content. The 309S alloy has less carbon, which minimizes carbide precipitation and improves weldability.


Product Parameters

Product Name

309/309S Stainless Steel Pipe

Type

Steel Pipe

Outer diameter

Round Tube

4mm-200mm

Square Tube

10*10mm-100*100mm

Rectangular Tube

10*20mm-50*100mm

Wall Thickness

0.6mm-6.0mm

Length

1-6 meters, Length can be customized

Standard

ASTM, AISI, JIS, GB, DIN, EN, etc.

Surface

Black, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc.

Scope of Application

Common applications for stainless steel pipes include food processing,

Textile operations, Breweries, Water treatment plants, Oil and gas processing,

Fertilizers and pesticides, Chemical applications, Construction, Pharmaceuticals, Auto parts, etc.

Certificate

ISO, SGS, BV, etc.

Production Technology

Hot Rolling, Cold Rolling

Edge Processing

Edging, Trimming

 

Chemical Composition

C

Si

Mn

Cr

Ni

S

P

≤ 0.08

≤ 0.75

≤ 2.0

22.0~24.0

12.0~15.0

≤ 0.03

≤ 0.045

 

Mechanical Properties

Tensile Strength Kb (MPa)

Yield Strength σ0.2 (MPa)

Elongation D5 (%)

Hardness

≥515

≥205

≥35

≤ 217HB

 

Physical Performance

Density(g/cm³)

Modulus of Elasticity(Gpa)

Coefficient of Thermal Expansion(10-6/°C)

Coefficient of Thermal Conductivity(W/m*K)

Resistivity(ΜΩ. cm)

7.98

200

14.9

15.6

78

PACKING AND SHIPPING

Our products are mainly exported to certain areas of Southeast Asia, Latin America, the Middle East and the former Soviet Union. Since the establishment of a factory in 2010, we have been using advanced production equipment to improve product quality and reduce production costs. We now have a good production environment.

 

WAREHOUSE STORAGE

We have scale advantages, resource advantages, integration advantages, technological research and development advantages, capital operation advantages, and have complete pre -sale, sales and after -sales service systems.

Taixin Steel

APPLICATION FIELD

The products are widely used in water conservancy projects, military equipment, construction industry, aerospace, automobiles, home appliances and other fields.

Taixin Steel

CUSTOMER VISIT

Our global footprint extends to over 100+ countries, including major markets like the European Union, the United States, Australia, Southeast Asia, and the Middle East. We are committed to delivering exceptional products and services to customers worldwide.

Taixin Steel

FAQ

Taixin Steel

Q:What is your working time?


Taixin Steel

A:In general, our online service time is: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.

Taixin Steel

Q:How to pack the products?


Taixin Steel

A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.

Taixin Steel

Q:Does the product have quality inspection before loading?


Taixin Steel

A:Of course, all our products are strictly tested for quality before packaging.

Taixin Steel

Q:Can I go to your factory to visit?


Taixin Steel

A:Of course, we welcome customers from all over the world to visit our factory.

Taixin Steel

Q:How long does your delivery time take?


Taixin Steel

A:In general, our delivery time is within 7-45 days, and may be delayed if the demand is extremely large or special circumstances occur.

Taixin Steel

Q:What are the certifications for your products?


Taixin Steel

A:We have ISO 9001,EWC and other certifications.

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