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.

Chuck Metals, located in Pulau Ujong, Singapore, has made a name for itself as a leading manufacturer and supplier of top-notch stainless steel products, particularly Stainless Steel 321H Bars and Rods. These bars are specifically engineered to excel in high-temperature and corrosive settings, earning the trust of various industries for their impressive strength, durability, and resistance to oxidation. With a strong focus on quality assurance and prompt delivery, Chuck Metals serves a wide range of sectors, including power generation, heat treatment, and chemical processing. Their blend of technical know-how and attentive customer service has made them a go-to choice for stainless steel bars and rods, not just in Singapore but throughout the Southeast Asian market.

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Stainless Steel 321h Round Bars

Stainless Steel 321h Hex Bars

Stainless Steel 321h Rods

Stainless Steel 321H Bars and Rods represent a high-carbon variant of the titanium-stabilized austenitic stainless steel alloy 321. This alloy typically comprises chromium (17–19%), nickel (9–12%), and carbon (0.04–0.10%), along with titanium (≥5xC) to inhibit carbide precipitation. The 321H variant boasts improved high-temperature strength and creep resistance compared to standard 321. It delivers a tensile strength of around 75 ksi (515 MPa), a yield strength of 30 ksi (205 MPa), and an elongation of 40%. These characteristics make 321H ideal for continuous use at elevated temperatures while effectively resisting intergranular corrosion, oxidation, and scaling.

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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 their place in applications that demand prolonged exposure to high temperatures, requiring both mechanical strength and corrosion resistance. Common uses include heat exchangers, boiler components, pressure vessels, exhaust manifolds, and refinery equipment. The high carbon content in 321H significantly boosts its structural performance under thermal stress, making it particularly suitable for oil refineries, chemical plants, and thermal processing systems.

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