China 321 Welded Stainless Steel Tubing Manufacturer, Suppliers

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China 321 Welded Stainless Steel Tubing Manufacturer, Suppliers

OES Metalâ€™s 321 Stainless Steel Tubing is a premium solution for industries that demand durability, high-temperature resistance, and corrosion protection. With exceptional mechanical properties and a long service life, 321 tubing is a reliable choice for demanding environments.
Tailored tubing sizes, finishes, and specifications to meet diverse industry needs.

Looking for top-notch high-temperature resistance and durability? Our premium 321 Stainless Steel Tubing might just be what you need. Itâ€™s been carefully designed to perform really well even in harsh, corrosive environments and extreme heat. Thanks to its stabilization with titanium, this tubing is great at resisting intergranular corrosion, and it keeps its strength and oxidation resistance intact even when exposed to temperatures up to 1500Â°F (816Â°C).

Whether youâ€™re working on aerospace projects, automotive exhaust systems, heat exchangers, boilers, or industrial furnaces, our 321 stainless steel tubing is reliable to last. Its seamless design means itâ€™s especially durable, with better pressure containment and a smooth inner surface that helps fluids flow better.

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Product Description

Product Details

Each tube meets tough standards like ASTM A213 and ASME SA213, with strict quality checks along the way. Plus, it is easy to weld and form, so fitting it into complex systems is a breeze—saving you time and money during installation.

If you are dealing with critical high-temperature or corrosive environments where failure isn’t an option, our 321 Stainless Steel Tubing is the ideal solution. Experience high-tier quality and service for your industrial needs.

Austenitic Stainless Steel	201, 301, 304, 305, 310, 314, 316, 321, 347, 370, etc
Martensitic Stainless Steel	410, 414, 416, 420, 431, 440A, 440B, 440C, etc
Duplex Stainless Steel	S31803, S32101, S32205, S32304, S32750, etc
Ferritic Stainless Steel	429, 430, 433, 434, 435, 436, 439, etc

Product Specification

Standard	ASTM A213, A312, ASTM A269, ASTM A778, ASTM A789, DIN 17456, DIN17457, DIN 17459, JIS G3459, JIS G3463, GOST9941, EN10216, BS3605, GB13296
Material	304, 304L, 309S, 310S, 316, 316Ti, 317, 317L, 321, 347, 347H, 304N, 316L, 316N, 201, 202
Surface	Polishing, annealing, pickling, bright
Type	Hot rolled and cold rolled
Size	Wall thickness: 1mm-150mm \| Outer diameter: 6mm-2500mm
Delivery time	Prompt delivery or as the order quantity.
Package	Standard export seaworthy package, or as required.
Application	Widely used in petroleum, food, chemical industry, construction, electric power, nuclear energy, machinery, biology, paper making, shipbuilding, and boilers.
Container size	20ft GP (5.89m L x 2.35m W x 2.39m H), 40ft GP (12.03m L x 2.35m W x 2.39m H), 40ft HC (12.03m L x 2.35m W x 2.69m H)

Chemical Composition Table

Grade ASTM	C (%)	Si (%)	Mn (%)	S (%)	P (%)	Cr (%)	Ni (%)
201	≤0.15	≤0.75	5.50-7.50	≤0.030	≤0.060	16.00-18.00	3.50-5.50
304	≤0.07	≤1.00	≤2.00	≤0.030	≤0.035	17.00-19.00	8.00-11.00
304L	≤0.03	≤1.00	≤2.00	≤0.030	≤0.035	18.00-20.00	8.00-12.00
309S	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	22.00-24.00	12.00-15.00
310S	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	24.00-26.00	19.00-22.00
316	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	16.00-18.00	10.00-14.00
316L	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	16.00-18.00	12.00-15.00

Frequently Asked Questions

What standards do your 321 stainless steel tubes comply with?

Our tubes strictly adhere to international standards including ASTM A213, ASME SA213, ASTM A312, and various DIN, JIS, and EN specifications to ensure global compatibility and safety.

In which industries are these stainless steel pipes commonly used?

They are widely applied in petroleum, chemical processing, food production, construction, nuclear energy, power generation, and shipbuilding due to their excellent heat and corrosion resistance.

What size ranges are available for the tubing?

We offer a wide range of sizes with wall thicknesses from 1mm to 150mm and outer diameters ranging from 6mm to 2500mm. Custom sizes can also be manufactured upon request.

What types of surface finishes can I choose from?

We provide several surface treatment options including polishing, annealing, pickling, and bright finishes to suit your specific aesthetic and functional requirements.

Why choose 321 stainless steel over other grades?

Grade 321 is stabilized with titanium, making it exceptionally resistant to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range (800–1500°F).