Contact Platform Support
Help CenterStainless Steel Seamless Pipe 304 321 1.5 Inch DN40 6m Random Length
Product Spotlights
Related Products
-
Stainless Steel Pipe For Oil & Gas Industry 304L Schedule 40 SeamlessNegotiableMOQ: 1 Ton -
409 Stainless Steel Coil for Automotive Exhaust Systems - Oxidation Resistant 1.5mmNegotiableMOQ: 1 Ton
-
ASTM A240 304 Stainless Steel Coil 0.8mm-3.0mm Thickness 2B Finish Mill Test ReportNegotiableMOQ: 1 Ton
-
SUS304 Stainless Steel Coil 0.5mm-1.5mm Thickness 2B Finish Bright Annealed CoilNegotiableMOQ: 1 Ton
-
JIS G4305 304L Stainless Steel Coil 2B/BA Surface Annealed Pickled Coil for Deep DrawingNegotiableMOQ: 1 Ton
Hemaokang Steel (Shandong) Co., Ltd. is a reliable supplier of premium stainless steel products. Our Stainless Steel Seamless Pipe 304 321 1.5 Inch DN40 6m Random Length is manufactured under strict quality control, ensuring excellent corrosion resistance, high strength, and long service life. With an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we are committed to delivering consistent quality and competitive pricing to global clients.
This seamless pipe is available in both 304 and 321 grades, offering flexibility for various industrial applications. Whether you need standard 6-meter fixed lengths or random lengths for custom fabrication, our inventory can meet your requirements. The pipe is processed with advanced cold-drawing or hot-rolling techniques, ensuring precise dimensions and smooth inner/outer surfaces.
Key Features & Technical Specifications
- Superior Corrosion Resistance: 304 grade offers excellent resistance to most oxidizing acids, while 321 grade is stabilized with titanium for higher temperature service (up to 800°C).
- Seamless Construction: No welded joints, ensuring uniform wall thickness and higher pressure tolerance.
- Dimensional Precision: Outer diameter tolerance as per ASTM A312 (typically ±0.5mm), wall thickness tolerance ±10%.
- Random Length Option: Random lengths ranging from 4m to 12m are available for projects requiring variable pipe lengths, reducing waste and cost.
- Customizable Ends: Plain ends, beveled ends, or threaded ends upon request.
- Surface Treatment: Bright annealing, pickling, or polishing options to meet specific aesthetic or functional needs.
| Parameter | Specification |
|---|---|
| Material Grade | 304 (UNS S30400), 321 (UNS S32100) |
| Nominal Size | 1.5 Inch (DN40) |
| Outer Diameter | 48.3 mm (1.9 inch) |
| Wall Thickness | Schedule 40: 3.68 mm (0.145 inch) – other schedules available |
| Length | 6m fixed length / Random length (4–12m) as per order |
| Standard | ASTM A312, ASTM A213 (optional) |
| Heat Treatment | Solution annealed (304: 1010–1120°C; 321: 980–1060°C) |
| Surface Finish | Bright annealed, pickled, or polished (optional) |
Our seamless pipes are widely used in industries such as petrochemical, oil & gas, food processing, pharmaceutical, and construction. The 321 grade is particularly suitable for high-temperature environments like heat exchangers and boiler tubes, while 304 is a cost-effective choice for general-purpose applications requiring good corrosion resistance.
Benefits for Your Business
- Reduced Inventory Cost: Random length pipes allow you to cut to exact needs, minimizing leftover material.
- Consistent Quality: ISO9001 certified production process ensures repeatable quality batch after batch.
- Fast Delivery: With a large stock and efficient logistics from Qingdao port, we can ship within 7–15 days after order confirmation.
- Technical Support: Our experienced engineers provide guidance on grade selection, dimension tolerance, and welding compatibility.
We understand that each project has unique requirements. That’s why we offer customized lengths, wall thicknesses, and end preparations to match your specific drawings or specifications. Contact us for a quotation or technical datasheet.
About Hemaokang Steel (Shandong) Co., Ltd.: Established in 2025, our company has quickly grown into a leading exporter of stainless steel products, with annual export revenue between US$50 million and US$100 million. Our team of 51–100 professionals operates from Liaocheng, Shandong, a major steel production hub. We have served clients across North America, South America, Europe, Southeast Asia, Africa, and Oceania, earning a reputation for reliability and competitive pricing. Our ISO9001 certification reflects our commitment to quality management.
We invite you to try our Stainless Steel Seamless Pipe 304 321 1.5 Inch DN40 6m Random Length. With our robust supply chain, strict quality checks, and responsive customer service, you can buy with confidence. Place a trial order today and experience the Hemaokang difference.
Frequently Asked Questions
-
Q: What is the difference between 304 and 321 stainless steel seamless pipe?
A: 304 is a general-purpose grade with good corrosion resistance in most environments. 321 contains titanium, which prevents carbide precipitation during welding and high-temperature service (up to 800°C). Choose 321 if your application involves continuous temperatures above 500°C or frequent welding. -
Q: Can I get random lengths other than 6m?
A: Yes, we offer random lengths ranging from 4m to 12m. You can specify a preferred range during ordering. Standard 6m fixed lengths are also available. -
Q: What wall thickness options are available for DN40 pipe?
A: Common schedules include Schedule 10 (3.05mm), Schedule 40 (3.68mm), and Schedule 80 (5.08mm). Other thicknesses can be produced upon request subject to minimum order quantity. -
Q: Is the pipe certified for pressure applications?
A: Yes, our pipes are manufactured according to ASTM A312, which is suitable for high-temperature and general corrosive service. Mill test certificates (MTC) are provided with each shipment. Additional third-party inspections (e.g., SGS, BV) are available upon request. -
Q: What is the typical lead time for this product?
A: For standard sizes and grades, stock items can be shipped within 7–10 days. For custom orders (different schedule, length, or surface finish), lead time is 15–25 days depending on quantity. -
Q: How is the pipe packaged for export?
A: Pipes are bundled with steel straps, each end covered with plastic caps to protect threads. For sea freight, they are packed in containers with proper bracing to prevent movement. Wooden packaging (optional) is available for extra protection. -
Q: Do you offer samples for testing?
A: Yes, we can provide small samples (e.g., 30cm length) for evaluation. The sample is free of charge, but the buyer covers shipping costs. Please contact our sales team to arrange. -
Q: What payment terms do you accept?
A: We accept T/T (30% deposit, 70% before shipment), L/C at sight, and for long-term partners, other flexible terms can be discussed. Minimum order quantity (MOQ) is typically 1 ton for standard sizes.
Send Inquiry to This Supplier
You May Also Like
-
430 Stainless Steel Coil 1.2mm x 1250mm x C Coil Weight 5-8 Tons per Roll WarehousingNegotiableMOQ: 1 Ton
-
Stainless Steel Coil 316L 2mm Thickness 1500mm Width Slit Edge Coil for FabricationNegotiableMOQ: 1 Ton
-
Customizable 304 Stainless Steel Coil Free Sample Available PP&Packaging Tape ProtectiveNegotiableMOQ: 1 Ton
-
Cold Rolled 201 Stainless Steel Coil Hardness 210-280 HV Width 1000mm-1250mm ±0.05mm ToleranceNegotiableMOQ: 1 Ton
-
Stainless Steel Coil 304 With Mill Test Report and 1 Year Warranty Direct FactoryNegotiableMOQ: 1 Ton
-
304 Stainless Steel Coil Used in Food Processing Equipment - 2B Surface Easy CleanNegotiableMOQ: 1 Ton
-
430 Stainless Steel Coil 0.8mm Thickness 1250mm Width No.4 Surface for Decorative UseNegotiableMOQ: 1 Ton
-
321 Stainless Steel Coil 0.3mm Thickness 1000mm Width 2B Surface Heat Resistant GradeNegotiableMOQ: 1 Ton
-
304 Stainless Steel Coil 1 Year Warranty Mill Test Report Cold Rolled 0.5-3.0mm Thickness 1000-1500mm WidthNegotiableMOQ: 1 Ton
-
304 Stainless Steel Coil for Roofing and Wall Panels 0.4-1.5mm Thickness 1000-1500mm Width Cold RolledNegotiableMOQ: 1 Ton
