Ss Inox 201 304 316L 310 310S 904L SUS420J2 TP304 S31804 347 904 2205 2507 317 321 Bright Welded Seamless Stainless Steel Square Round Tube Pipe
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Product Highlights
- Wide Material Selection: Available in 200, 300, 400 series and duplex grades including 304, 316L, 2205, and 904L.
- Customizable Dimensions: Outer diameter 6-800mm, thickness 0.1-100mm, and length up to 12000mm or as requested.
- Superior Durability: Seamless construction ensures smooth structure, high strength, and no welding weaknesses.
- Corrosion Resistance: Ideal for corrosive environments, high-pressure systems, and extreme temperatures.
- Versatile Surface Finishes: Options include BA, 2B, 2D, 4K, 6K, 8K, NO.4, HL, SB, and Embossed.
- Comprehensive Applications: Suitable for pipeline transport, boilers, oil/gas drilling, food processing, and construction.
- Strict Quality Control: Includes random visual inspection and full traceability of raw materials.
- Sample Customization: ODM service available with customization options based on customer samples.
Product Attributes
- Customization
- Available
- Warranty
- 2 Years
- Type
- Seamless
- Model NO.
- 201 304 316L 310 310S 904L SUS420J2 TP304 S31804 3
- Technique
- Cold Drawn
- Material
- Stainless Steel
- Surface Treatment
- Pickling
- Usage
- Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
- Section Shape
- Round
- Transport Package
- Sea-Worthy Packing
- Specification
- 10-200
- Trademark
- KUNQIAN
- Origin
- China
- HS Code
- 7304419000
- Production Capacity
- 10000000
Product Images of Ss Inox 201 304 316L 310 310S 904L SUS420J2 TP304 S31804 347 904 2205 2507 317 321 Bright Welded Seamless Stainless Steel Square Round Tube Pipe
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Product Description


resistance, and adaptability to a wide range of applications. These tubes, made without any seams or welds, offer a smooth,uniform, and strong structure, making them ideal for use in demanding environments.
The seamless construction of these tubes ensures superior mechanical properties and the absence of any potential weaknesses that could arise from welding. This, combined with the inherent strength and durability of stainless steel, makes them suitable for use in high-pressure systems, corrosive environments, and even in extreme temperatures.
The versatility of stainless steel seamless tubes is further enhanced by the availability of different grades of stainless steel,each tailored to specific applications. For instance, austenitic grades like 304 and 316 are widely used in food processing and medical equipment due to their excellent corrosion resistance and non-toxic properties. On the other hand, martensitic grades offer superior strength and hardness, making them suitable for automotive and oil & gas applications.
Production Name | Stainless Steel Seamless Pipe /Tube |
Product Specifications | Outer Diameter:6-800 mm Thickness:0.1-100 mm (Size can be customized.) Length:≤12000mm or as per customer request |
Product Standard | ASTM A213, ASTM A312, ASTM A789, ASTM A790 |
Material Grade | Mainly201, 202, 304, 304L, 304H, 316, 316L,316Ti,2205, 330, 630, 660, 409L, 321, 310S, 410, 416, 410S, 430, 347H, 2Cr13, 3Cr13 etc 300series:301,302,303,304,304L,309,309s,310,310S,316,316L,316Ti,317L,321,347 200series:201,202,202cu,204 400series:409,409L,410,420,430,431,439,440,441,444 Others:2205,2507,2906,330,660,630,631,17-4ph,17-7ph, S318039 904L,etc Duplex stainless steel:S22053,S25073,S22253,S31803,S32205,S32304 Special Stainless Steel:904L,347/347H,317/317L,316Ti,254Mo |
Surface | BA, 2B, 2D, 4K, 6K, 8K, NO.4, HL, SB, Embossed |




About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI264165". Items marked "" are certified.
Company Profile
Our company is a comprehensive enterprise specializing in the R&D, production and export of stainless steel raw materials and finished products. With over a decade of deep cultivation in the industry, we have built a complete industrial chain covering raw material smelting, precision processing and global distribution. Our main products include 304/316/201 series stainless steel plates, pipes, bars and customized deep-processing products. Relying on stable quality, flexible customization schemes and efficient delivery capabilities, our products are exported to more than 80 countries and regions such as Europe, America, Southeast Asia and the Middle East, and are widely used in construction decoration, mechanical equipment, chemical equipment, kitchenware & sanitary ware, automobile manufacturing and other fields.
Since its establishment, our company has always adhered to the core business philosophy of "Quality First, Customer Supreme, Integrity and Win-Win", and has established a strict ISO9001 quality management system. We implement full-process quality inspection in every link from raw material procurement to finished product delivery, ensuring that our products meet international standards such as ASTM, EN and JIS. Equipped with advanced production equipment and a professional R&D team, we can provide ODM/OEM customized services according to customer needs, including size cutting, surface treatment (polishing, wire drawing, sandblasting), welding processing, etc., to meet the personalized requirements of customers in different industries.
In terms of service, we have built an efficient foreign trade service system. From preliminary demand communication, sample delivery and quotation calculation, to MID-term production follow-up and logistics arrangement, as well as post-sale feedback, a dedicated account manager will follow up the whole process to provide customers with one-stop solutions. We deeply understand that trust is the cornerstone of cooperation, and we have always won the long-term trust and cooperation of global customers with transparent prices, on-time delivery and perfect after-sales guarantee.
Facing the wave of economic globalization, we actively expand the international market and establish solid strategic partnerships with traders and manufacturers from all over the world, committed to realizing the development vision of "Bringing China's high-quality stainless steel to the world and creating value together with global customers". In the future, we will continue to increase investment in technological innovation, optimize product structure, improve service efficiency, help customers gain advantages in the fierce market competition, and move towards a broader cooperative future hand in hand.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- Wuxi, Jiangsu, China
-
Plant Area
- 30 square meters
-
Number of Employees
- 8
-
Registered Capital
- 12,800,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 Ton
-
Supply Chain Partners
- 60
Our Production Capability & Technical Expertise
- Main Products
- Stainless Steel, Stainless Steel Sheet, Stainless Steel Pipe, Stainless Steel Coil, Stainless Steel Plate, Stainless Steel Bar, Stainless Steel Tube, Stainless Steel Strip, Incoloy, Inconel
-
QA/QC inspectors
- 1 people
-
Inspection Type for Finished Products
- Random inspection(Visual inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples
-
ODM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2025-02-19
-
Export Year
- 1 Years
-
Main Markets
- Southeast Asia/ Mideast
-
Repeat Buyers Choice
- 30%~50%
-
Number of Foreign Trading Staff
- 4
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What is the warranty period?
- We provide a 2-year warranty for our stainless steel seamless pipes.
- What are the available material grades?
- We offer a wide range of grades including 201, 304, 316L, 310S, 2205, 2507, and 904L.
- Can the pipe dimensions be customized?
- Yes, outer diameter ranges from 6-800mm, thickness from 0.1-100mm, and length up to 12000mm or as per customer request.
- What is the minimum order quantity?
- The minimum order quantity is 1 Ton.
- What are the standard payment terms?
- We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.
- What is the average lead time?
- The lead time is within 15 workdays for both peak and off-peak seasons.
- Do you offer customization services?
- Yes, we provide ODM services and customization options based on customer samples.
- What surface treatments are available?
- Available finishes include BA, 2B, 2D, 4K, 6K, 8K, NO.4, HL, SB, and Embossed.
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