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321 Stainless steel pipe

Number:+8615065547531
Whatsapp:+8615065547531
Email:eve@sisnometals.com
Product description：321 Stainless steel pipe
INQUIRY

Product parameter

321 stainless steel pipe is a Ni-Cr-Ti type austenitic stainless steel pipe.

The Ti in 321 stainless steel pipe exists as a stabilizing element, and it is also a heat-strong steel, so the performance is better than 316L in high temperature. In addition, 321 stainless steel pipe in different concentrations, different temperatures of organic and inorganic acids, especially in oxidizing media, has good abrasion resistance, so it is often used in the manufacture of wear-resistant acid containers and wear-resistant equipment lining, pipeline.

Because the metal titanium is added to the 321 stainless steel pipe, it can effectively control the formation of chromium carbide, so that the steel pipe has better resistance to grain boundary corrosion and high temperature strength. This makes the high temperature stress breaking performance and high temperature creep resistance of 321 stainless steel pipe better than 304 stainless steel, so it is suitable for welding components used at high temperatures.

In general, 321 stainless steel pipe is a kind of stainless steel pipe with excellent abrasion resistance, high temperature strength and creep resistance, which is suitable for a variety of high temperature and strong corrosion environment.

Outer Diameter	6-2500mm， (3/8"-100")
Thickness	0.3-150mm，(SCH10-XXS)
Length:	2000mm, 2500mm, 3000mm, 5800mm, 6000mm,12000mm， etc
Standard:	ASTM，AISI，JIS,，GB， DIN,，EN
Surface:	BA，2B，NO.1，NO.4，4K，HL，8K
Application:	It is widely used in high-temperature and electric industry, medical devices, construction, chemistry, food industry, agriculture, and ship components.It also applies to food and beverage packaging, kitchen supplies, trains, aircraft, conveyor belts, vehicles, bolts, nuts, springs, and screen mesh etc.
Certification:	ISO, SGS，BV
Technique:	Cold Drawn Seamless Tube / Welded pipe
Edge:	Mill Edge Slit Edge
Quality:	SGS Inspection
Grade （ASTM UNS）	201，304，304L，321，316，316L，317L，347H，309S，310S，904L，S32205，2507，254SMOS，32760，253MA，N08926
Grade （EN）	1.4301，1.4307，1.4541，1.4401，1.4404，1.4571，1.4438，1.4539，1.4547，1.4529，1.4562，1.4410，1.4878，1.4845，1.4828，1.4876，2.4858，2.4819
Main market:	Asia/Europe/ South America
Supply Ability:	5000 Ton/Tons per Month
Packaging & DeliveryPackaging Detailsin bundle,plastic bags,thin film,wooden pallet,standard seaworthy export packing or as customer demands
20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM

Material introduction

Stainless steel is an alloy of iron that is resistant to rusting and corrosion. It contains at least 11% chromium and may contain elements such as carbon and other nonmetals to obtain other desired properties. Stainless steel's resistance to corrosion results from the chromium, which forms a passive film that can protect the material and self-heal in the presence of oxygen.

The alloy's properties, such as luster and resistance to corrosion, are useful in many applications. Stainless steel can be rolled into sheets, plates, bars, wire, and tubing. These can be used in cookware, cutlery, surgical instruments, major appliances, vehicles, construction material in large buildings, industrial equipment (e.g., in paper mills, chemical plants, water treatment), and storage tanks and tankers for chemicals and food products.

The biological cleanability of stainless steel is superior to both aluminium and copper, and comparable to glass. Its cleanability, strength, and corrosion resistance have prompted the use of stainless steel in pharmaceutical and food processing plants.

The density of stainless steel can be somewhere between 7,500kg/m3 to 8,000kg/m3 depending on the alloy.

Type	Cr	Ni	Cmax	Other Elements	Major Characteristics
303	17.00-19.00	8.00-10.00	0.15	S 0.15 min	† Free-machining modification of Type 302
303 Se	17.00-19.00	8.00-10.00	0.15	Se 0.15 min	† Free-machining version of Type 302. Produces better surface finish than Type 303.
304	18.00-20.00	8.00-10.00	0.08	–	† Low carbon variation of Type 302. Minimizes carbide precipitation during welding
304L	18.00-20.00	8.00-10.00	0.03	–	† Extra-low carbon content eliminates harmful carbide precipitation due to welding
309	22.00-24.00	12.00-15.00	0.2	–	† High strength and resistance to scaling at high temperatures
310	24.00-26.00	19.00-22.00	0.2	–	† Higher alloy content improves basic characteristics of Type 309
316	16.00-18.00	10.00-14.00	0.08	Mo 2.00-3.00	† Mo improves general corrosion and pitting resistance and high temperature strength over that of Type 302
316L	16.00-18.00	10.00-14.00	0.2	Mo 2.00-3.00	† Extra-low carbon version of Type 316. Eliminates harmful carbide precipitation due to welding
317	18.00-20.00	11.00-15.00	0.08	Mo 3.00-4.00	† Higher alloy content improves basic advantages of Type 316
321	17.00-19.00	9.00-12.00	0.08	Ti 5 x C. min	† Stabilized to permit use in 800-1500°F temperature range without harmful carbide precipitation
347	17.00-19.00	9.00-13.00	0.008	Cb + Ta 10 x C. min	† Characteristics similar to Type 321. Stabilized by Cb and Ta.
348	17.00-19.00	9.00-13.00	0.08	Ta 0.10 max Cb 0.20 max	† Similar to Type 347 but Ta reduced for atomic energy applications
348	17.00-19.00	9.00-13.00	0.08	Cb + Ta 10 x C min
410	11.50-13.50	-	0.15	-	¥ Lowest cost general purpose stainless steel. Wide use where corrosion is not severe.
416	12.00-14.00	-	0.15	S 0.15 min	¥ Free-machining version of Type 410.
420	12.00-14.00	-	0.15 min	-	¥ Similar variation of Type 410 but higher carbon produces higher strength and hardness.
430	14.00-18.00	-	0.12	-	* Most popular of the chromium types. Combines good corrosion and heat resistance and mechanical properties.
430 F	14.00-18.00	-	0.12	S 0.15 min	* Free-machining version of Type 430.
440A	16.00-18.00	-	0.60-0.75	-	¥ Series of high carbon types. Some basic composition with varying carbon content. Higher carbon produces higher strength and hardness but lower toughness. All Type 440 versions are corrosion resistant only in the hardened condition.
440B	16.00-18.00		0.75-0.95
440C	16.00-18.00		0.95-1.20
446	23.00-27.00	-	0.2	-	* Similar to Type 442 but Cr increased to provide maximum resistance to scaling.
15-5 PH	14.00-15.50	3.50-5.50	0.07	Cu 2.50-4.50	• Similar in properties and characteristics to 17-4 PH but has superior transverse ductility and toughness.
PH 15-7 Mo	14.00-16.00	6.50-7.75	0.09	Mo 2.00-3.00	•• Special type similar to 17-7 PH but with higher strength.
PH 15-7 Mo	14.00-16.00	6.50-7.75	0.09	Al 0.75-1.50
17-4 PH	15.50-17.50	3.00-5.00	0.07	Cu 3.00-5.00	• Special type that combines excellent corrosion resistance…high strength and hardness… low temperature hardening and good fabrication characteristics.
17-7 PH	16.00-18.00	6.50-7.75	0.09	AL 0.75-1.25	•• Special ultra-high strength type with good formability and excellent fabricating characteristics.

Product testing

We know that in the steel industry, quality is the lifeline. As a professional steel manufacturer, we always put product quality in the first place and are committed to providing customers with the best quality and most reliable steel products.
In order to ensure that our products meet international standards and customer requirements, we have established a sound quality management system, from raw material procurement to production and processing, and then to finished product inspection, every link is strictly monitored and controlled. We use advanced production equipment and processes to ensure the accuracy and stability of products.
We know that only excellent quality products can win the trust of customers and market recognition. Therefore, we will continue to uphold the concept of quality first, constantly improve product quality and service level, to provide customers with better quality steel products and services.

Warehouse and delivery show

Beijing Sisno Metals Trade Co.,Ltd has been committed to providing customers with a wide range of product choices. At present, we have a large stock of steel in our warehouses, covering a wide range of specifications and models to meet the diverse needs of different customers.

These stocks of steel are carefully selected by us for high quality products, which undergo strict quality control and inspection to ensure their excellent durability and reliability. We have a complete inventory management system, which can track and manage inventory in real time to ensure that the quality and quantity of products are always maintained in the best condition.

Our extensive inventory means we are able to respond quickly to our customers' needs, shorten lead times and provide a more flexible and convenient service. We are always customer-centric and committed to providing our customers with efficient and reliable solutions to help them achieve their engineering goals.

If you are interested in our stock status or have any questions, please feel free to contact us. We will be happy to provide you with more details and support to meet your needs.

Product application

Applications of stainless steel products are:

Architectural decoration: such as wall panels, doors and Windows, indoor and outdoor decoration.
Machinery manufacturing: such as bearings, valves, hydroelectric power generation, automobile manufacturing, etc.
Food processing and pharmaceutical manufacturing: such as kitchen equipment, tableware, medicine preservation cabinet, etc.
Chemical, petrochemical and Marine industries: such as chemical equipment, storage tanks, chemical pipelines, oil pipelines, etc.
Energy, environmental protection and public facilities: such as nuclear power plants, wind power towers, solar power generation, environmental protection equipment, etc.
Modern art and fashion design: such as sculpture, artwork, bridge decoration, fashion tableware, etc.

About us

Welcome to Sesino Metal. Beijing Sesino Metal Trade Co., Ltd is an international trading company equipped with extensive experience and excellent reputation in the steel industry for more than 5 years. We are committed to providing customers with high-quality, diversified steel products to the global market. Since founding, we have always adhered to our core values of integrity, professionalism and innovation. Our team consists of a group of experienced industry experts and enthusiastic sales representatives, who have won the trust and praise of our customers with their deep industry knowledge and excellent service attitude.
As one of the world's leading steel products suppliers, we have established solid cooperative relationships with big state-owned steel mills in China, including Tisco, Wisco, Nisco, Shougang, Baosteel, Hunan Valin, and Shandongsteel ect, and many private mills who have more competitive prices. Therefore, we can provide you with a wide range of steel products, including carbon steel, stainless steel, alloy steel, oriented and non-oriented electrical silicon steel , aluminum steel and other metal products etc.
In addition to providing high-quality steel products, we are also committed to providing comprehensive solutions to our customers. Our professional team will provide you with customized procurement solutions, logistics arrangements and after-sales services based on your needs to ensure that you receive worry-free support and protection during the entire transaction process.
We understand that our customers' needs and satisfaction are the keys to our success. Therefore, we will continue to work hard to improve service quality, continuously develop and improve product lines to meet the changing needs of customers. We look forward to establishing a long-term and stable cooperative relationship with you and creating a better future together. Thank you for choosing Sesino Metals, we look forward to working with you to create our brilliance!

Certificate display

We value product quality and customer service feedback, so all our products can accept professional quality inspection by third party testing agencies and can be accompanied by relevant quality certificates

FAQ

Are you having any problems? You can always ask us about your problems, or you can browse the topics below to find what you are looking for.

Are you trading company or manufacturer ?

We are specialized in the production and processing of various carbon steel products, we can also accept custom products of other materials

How long is your delivery time?

It takes around 3-5 days for the regular models, and 7 to 10 working days for the special sizes and processing. It is based on the order quantity and requirement.

Do you provide samples ? Is it free or extra ?

We can provide samples to you for free, but the cost of express delivery will be borne by you.

Do you support customization ?

Yes, we have a full stock of products with a full range of models and a working production line. If you don't have what you want, we can customize it.

Do you accept third party testing ?

Yes, we fully accept the quality inspection of the third party inspection institutions. We attach great importance to the reliability of product quality

What are the advantages of your company?

First of all, we have an absolute advantage in price. Secondly, the quality of products is also strictly controlled.