Stainless Steel 321 Bars/Rods

Q: Can Stainless Steel 321 Bars and Rods be used in welding applications?

Yes , Stainless Steel 321 is well-suited for welding. Its titanium stabilization prevents intergranular corrosion during welding, ensuring structural integrity and longevity.

Louis Metals supplies high–quality Stainless Steel 321 Bars and Rods from Houston, USA, designed for high-temperature service and good weldability. SS 321 is a stabilized austenitic stainless steel that contains titanium, applied in intergranular corrosion-exposed systems and high-heat applications. Louis Metals supplies accurately dimensioned, corrosion-resistant bars fit for industrial and aerospace industries.

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Stainless Steel 321 Round Bars

Stainless Steel 321 Hex Bars

Stainless Steel 321 Rods

Stainless Steel 321 has 17.0–19.0% Chromium, 9.0–12.0% Nickel, and Titanium for stabilization. It provides tensile strength of 515–750 MPa and yield strength of approximately 205 MPa. It is resistant to intergranular corrosion following welding and does not become magnetic. It is good in oxidizing conditions and maintains strength up to 1500°F (816°C).

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Stainless Steel 321 Bars and Rods Specifications

Specification : ASTM A276/ASME SA276, SA479/A479

Standard : DIN, EN, ASTM, JIS, ASME, BS, AISI

Round Bars : OD 4 to 500mm

Bright Bars : OD 4 to 100mm

Hex Bars : 18 to 57mm (11/16″ to 2-3/4″)

Square Bars : 18mm to 47mm (11/16″ to 1-3/4″)

Finish : Matt Finish, Bright Polished, Black, NO.4 Finish, Rough Turned, BA Finish

Length : cut to size 1 – 6 Meters,

Form : Hex, Square, Round, Rectangle Etc.

Chemical Compositions of Stainless Steel 321 Bars and Rods

Grade	Ti	Mn	C	Si	S	P	Mo	Cr	Ni
SS 321	5(C+N) to 0.70 maximum	2.0 maximum	0.08 maximum	1.0 maximum	0.030 maximum	0.045 maximum	–	17.00 to 19.00	9.00 to 12.00

Stainless Steel 321 Bars and Rods Mechanical Properties

Melting Point	Density	(0.2%Offset) Yield Strength	Tensile Strength	Elongation
1457 °C (2650 °F)	8.0 g/cm3	Psi – 30000 , MPa – 205	Psi – 75000 , MPa – 515	35 %

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Stainless Steel 321 Bars and Rods Types

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Equivalent Grades Stainless Steel 321 Bars and Rods

WERKSTOFF NR.	STANDARD	JIS	UNS	EN
1.4541	SS 321	SUS 321	S32100	X6CrNiTi18-10

Frequently Asked Questions (FAQ)

What are the key properties of Stainless Steel 321 Bars and Rods?

Stainless Steel 321 offers excellent resistance to oxidation and corrosion, especially in high-temperature environments. It also provides exceptional stability and strength, making it suitable for various industrial applications.

Can Stainless Steel 321 Bars and Rods be used in welding applications?

Yes, Stainless Steel 321 is well-suited for welding. Its titanium stabilization prevents intergranular corrosion during welding, ensuring structural integrity and longevity.

What industries commonly use Stainless Steel 321 Bars and Rods?

These bars and rods are widely used in aerospace, chemical processing, heat exchangers, automotive exhaust systems, and other industries requiring high-temperature and corrosion-resistant materials.

Stainless Steel 321 Bars and Rods Uses

SS 321 Bars and Rods find application in exhaust systems, heat exchangers, chemical tanks, jet engine components, and refinery piping. It‘s best suited for applications with repeated cycling of temperature or welding. Its thermal stability and oxidation resistance make it the choice for aerospace, power generation, and chemical processing.

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