Stainless Steel 321h Bars/Rods

Q: Can Stainless Steel 321H Bars and Rods be welded?

Yes , Stainless Steel 321H Bars and Rods can be welded effectively. The addition of titanium in the alloy reduces the risk of carbide precipitation during welding, making them suitable for high-temperature applications where welding is required.

Hemi Metals, located in Hamilton, New Zealand, is a reliable manufacturer and supplier of top-notch Stainless Steel 321H Bars and Rods, specifically designed for high-temperature and pressure-intensive industrial applications. SS 321H is a titanium-stabilized, high-carbon version of SS 321, crafted to deliver exceptional strength even at elevated temperatures. With a focus on precise dimensions and rigorous quality control, these bars and rods ensure outstanding mechanical reliability and thermal stability. Hemi Metals caters to various industries, including power generation, petrochemical, aerospace, and heavy engineering, where high-temperature strength and corrosion resistance are essential.

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Stainless Steel 321h Round Bars

Stainless Steel 321h Hex Bars

Stainless Steel 321h Rods

Stainless Steel 321H is composed of about 17–19% chromium and 9–12% nickel, featuring a higher carbon content than SS 321, along with titanium stabilization to prevent carbide precipitation. This unique blend offers remarkable resistance to intergranular corrosion while significantly enhancing high-temperature strength. Typically, SS 321H bars boast a tensile strength ranging from 515–620 MPa and a yield strength of around 205–240 MPa, all while maintaining good ductility and creep resistance. These bars are non-magnetic when annealed and retain dependable mechanical stability during extended exposure to high temperatures.

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Stainless Steel 321h Bars and Rods Specifications

Standards	ASTM A276, A479, A582, GB4226-84, GB/T1220-2007, JISG4311-91, JIS G4318-98, EN 10095-99, GB4226-84, EN10088-3-2005, JIS G4303-2005, etc
Stainless Steel Round Bar type	ASTM A276 321h stainless steel round bars
Range	Range – 3.17mm to 350mm dia
Technique	Forged/Hot Rolled/Cold Drawn/Peeled
Diameter	2.0-400mm
Surface	bright round bar, pickled round bar, black round bar
Length	3000mm, 6000mm or according to the customer’s requirement.
Type	Round bar, rod, square bar, flat bar, hexagon bar, angle bar, channel bar, threaded bar
Package Details	Standard seaworthy package(wooden boxes package,pvc package, or other package)

Chemical Compositions of Stainless Steel 321h Bars and Rods

Grade	C	Mn	Si	P	S	Cr	Ti	Ni	N
SS 321h	0.04 – 0.10 max	2 max	0.75 max	0.045 max	0.03 max	17 – 19	4xC min 0.60% max	9 – 12	0.10 max

Stainless Steel 321h Bars and Rods Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

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Stainless Steel 321h Bars and Rods Types

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Equivalent Grades Stainless Steel 321h Bars and Rods

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 321h	1.4541	S32109	SUS 321h	–	–	–	X6CrNiTi18-10

Frequently Asked Questions (FAQ)

What is the difference between Stainless Steel 321 and 321H Bars and Rods?

Stainless Steel 321H is a high-carbon version of 321 stainless steel. The higher carbon content in 321H improves its high-temperature strength, making it ideal for use in environments with temperatures over 800°C (1472°F). While both offer excellent resistance to oxidation and corrosion, 321H is particularly suited for applications with higher thermal stresses.

What industries use Stainless Steel 321H Bars and Rods?

Stainless Steel 321H Bars and Rods are commonly used in industries such as aerospace, chemical processing, power generation, and marine environments. They are ideal for high-temperature applications such as heat exchangers, reactor cores, and furnace parts.

Can Stainless Steel 321H Bars and Rods be welded?

Yes, Stainless Steel 321H Bars and Rods can be welded effectively. The addition of titanium in the alloy reduces the risk of carbide precipitation during welding, making them suitable for high-temperature applications where welding is required.

Stainless Steel 321h Bars and Rods Uses

Stainless Steel 321H Bars and Rods find extensive use in environments where high temperatures and pressure are critical, requiring both strength and corrosion resistance. They are commonly utilized in boiler components, heat exchangers, superheater tubes, exhaust manifolds, furnace parts, and thermal processing equipment. In the petrochemical and power generation sectors, SS 321H is essential for pressure vessels, pipelines, expansion joints, and structural supports. These bars are also employed in refinery systems, gas processing units, and aerospace thermal assemblies. Their excellent weldability, oxidation resistance, and creep strength ensure they perform reliably over the long haul.

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