321 Steel

Your Professional 321 Steel Supplier

Hongyang Special Steel Technology Co., Ltd. was established in 2007. Since its inception, the company has been committed to providing global customers with high-quality heat-resistant, wear-resistant, and corrosion-resistant alloy steel products.

We implement stringent quality control at every stage of production, from raw material testing to final product inspection. This ensures that every product leaving our facility meets high-quality standards and exhibits excellent durability and performance.

Our factory is equipped with cutting-edge lost foam casting technology, centrifugal casting production lines, vacuum pressure casting production lines, and precision machining equipment.

With the improvement of our technological capabilities and consistent product quality, our products have successfully penetrated international markets, particularly in regions such as Europe, Southeast Asia, and the Middle East.

Worry-free Assurance

We commit to providing comprehensive after-sales support. If clients encounter any issues during product usage, we will quickly offer solutions to ensure uninterrupted production.

321 Steel Specifications

	1.Alloy cast steel: 4140, 4150, 4340, 8620, GS-25CrMo4 2.Hardened stainless steel:17-4PH, 410, 420, 440C 3.Alloy cast steel: 4140, 4150, 4340, 8620, GS-25CrMo4 4.Casting alloy tool steel: CS-2, CS-7, CrWMn 5.Carbon steel: 1020, 1025(WCB), 1030, 1040, 1045, 1050
	1g-30kg
	CT4-CT7/GBT6414-1999; VDG Merkblad P690
	Ra1.6-Ra6.3
	Min 2mm (1mm in Micro-region)
	Round radius >=0.3mm, Internal fillet radius>=0.5mm
	Max 30mm (Diamter 10mm)


	Black Oxide,Black Coating,Anti-Pollution Flashover Coating,Mirror Polish

	Pro-E, UG,Solidworks, AutoCAD

Especially in high-temperature environments and after welding.

Used in various industries, including aerospace, chemical processing, and automotive manufacturing.

Maintains its strength and resists creep at elevated temperatures, making it suitable for applications like aircraft exhaust systems.

Can be welded without the risk of sensitization (Formation of chromium carbides at grain boundaries) and subsequent corrosion, especially when post-weld annealing is not feasible.

Types of 321 Steels Available

Used in general fabrication, aerospace, and automotive applications.

Used in construction, machinery, and various structural components.

Used in exhaust systems, heat exchangers, and other applications requiring high-temperature resistance.

Used in piping systems.

Used for critical components in high-temperature and high-stress applications.

Exhaust systems, engine components.

Equipment for handling corrosive chemicals, heat exchangers.

Exhaust manifolds, catalytic converters.

Equipment and storage, as the passive film on the surface prevents contamination.

High-temperature piping and components.

→Strong & waterproof plastic big is packed inside, to keep the product in safe condition.Or as customer requests.
→Multilayer wooden box with strong bandages, used for standard export package. Or customized as per customer's requirements.

A: Send us an inquiry e-mail, we will contact you as we receive your mail.

A: Depends on your specific items, within 15 days is required generally.

A: Kindly please provide the product drawing in PDF or .IGS or .STEP.

A: We accept 30% as payment deposit and balance paid before shipment.

A: We are a direct factory with experienced engineers and employees .

A: Please send your sample to our factory, then we can copy or provide you better solutions. Please send us pictures or drafts with dimensions (Length, Height, Width), CAD or 3D file will be made for you if placed order.

We're professional 321 steel manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to buy cheap 321 steel in stock here and get quotation from our factory. For price consultation, contact us.