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309 Stainless Steel Round Bars

309 Stainless Steel Round Bars Specification

Alloy
Yes (Cr-Ni Alloy)

Surface Finish
Manual Polish

Application
Construction, Petrochemical, Oil & Gas, Food Processing, Power Plants, Engineering, Automotive

Product Type
Stainless Steel Round Bar

End Protector
Plastic End Caps

Material
Stainless Steel

Steel Grade
A

Type
Bar/Rod

Shape
Round

Standard
ASTM A276, ASTM A479, ASME SA276/SA479, UNS S30900/30908

Grade
SS 309/309S

Surface Treatment
Annealed, Polished

Technique
Hot Rolled, Cold Drawn

Thickness
Custom/As required

Outer Diameter
5 mm to 500 mm

Length
1 meter to 6 meters or as per requirement

Tolerance
h8, h9, h10 or as required

Color
Silver/Grey

Heat Resistance
Up to 980C (1800F)

Density
7.98 g/cm3

Tensile Strength
515 MPa min

Non-Magnetic
Yes (in annealed condition)

Melting Point
13541399C

Yield Strength
205 MPa min

Packaging
Standard export sea-worthy packaging, wooden boxes, or as required

Machinability
Fair

Elongation
40% min

Hardness
217 HB max

Corrosion Resistance
Excellent in high temperature and oxidizing environments

309 Stainless Steel Round Bars Trade Information

Minimum Order Quantity
500 Ten Gross

Supply Ability
10 Per Month

Delivery Time
1 Days

Main Export Market(s)
Asia, Western Europe, Africa, Australia, Central America, North America, South America, Eastern Europe, Middle East

Main Domestic Market
All India

About 309 Stainless Steel Round Bars

309 stainless steel round bars have high tensile strength and good creep strength, making them suitable for applications that require resistance to heavy loads and stresses at elevated temperatures. This has good weldability and can be easily welded using common welding techniques such as TIG (Tungsten Inert Gas) welding, MIG (Metal Inert Gas) welding, and resistance welding. 309 stainless steel round bar is commonly used in applications that require high-temperature resistance and corrosion resistance.

Exceptional Corrosion and Heat Resistance

SS 309/309S round bars are well-known for their ability to withstand high temperatures up to 980C (1800F) and maintain excellent corrosion resistance, even in oxidizing environments. This makes them highly suitable for industries such as petrochemical, power plants, and oil & gas, where exposure to harsh conditions is frequent.

Versatile Applications Across Industries

These stainless steel round bars are frequently used in areas demanding robust strength and reliability, including construction, automotive, engineering, and food processing. Their tailored thickness and diameter options ensure perfect compatibility with a wide range of projects, while standard and custom lengths provide flexibility for diverse requirements.

FAQ's of 309 Stainless Steel Round Bars:

Q: How is 309 Stainless Steel Round Bar processed for improved performance?

A: SS 309 round bars are produced using hot rolling or cold drawing techniques. They undergo annealing for enhanced ductility and corrosion resistance, followed by polishing for a refined surface. Optional customizations, including tolerance, dimension, and length, ensure the bars meet specific operational requirements.

Q: What industries benefit most from using 309 Stainless Steel Round Bars?

A: Industries such as construction, petrochemical, oil & gas, food processing, power plants, engineering, and automotive benefit from these bars due to their high corrosion and heat resistance, as well as excellent mechanical strength and reliability.

Q: When should 309 Stainless Steel be chosen over other stainless grades?

A: Select 309 stainless steel when your application involves continuous exposure to high temperatures (up to 980C) and aggressive oxidizing environments, where enhanced corrosion resistance is critical. Its superior performance in these conditions distinguishes it from other stainless grades.

Q: Where are 309 Stainless Steel Round Bars typically installed?

A: These bars are commonly installed in high-temperature process equipment, furnace parts, heat exchangers, chemical tanks, and structural sections within demanding operational environments such as refineries and industrial plants.

Q: What are the benefits of the non-magnetic property in annealed SS 309 bars?

A: The non-magnetic nature of annealed SS 309 bars makes them ideal for use in applications where magnetic interference must be avoided, such as sensitive electronic or instrumentation settings.

Q: How are 309 Stainless Steel Round Bars packaged for export?

A: Bars are securely packed in standard export-worthy wooden boxes or according to customer requirements. Each bar is fitted with plastic end caps to protect against physical damage during transit, ensuring safe and efficient delivery.