ASTM A789 Duplex 2205 Seamless Steel Tube 1/4"-2" OD for Marine Industry Applications
Price:
Above 2usd/kg
MOQ:
1pc
Delivery Time:
2 weeks/container
Brand:
SMLSCO
Product Description
Product Overview
ASTM A789 Duplex 2205 seamless steel tubes are engineered specifically for demanding marine applications, offering superior corrosion resistance and mechanical strength in harsh environments.
Technical Specifications
| Specification | Details |
|---|---|
| Grade | S31803, 2205, 2507, TP316, TP316L, TP304, TP304H, TP304L, TP321, TP321H, TP317L, TP310S, TP347H |
| Standard | ASTM A789 |
| Size Range | 1/4" - 2" OD, Maximum 6M Length |
| Manufacturing Method | Seamless (Cold-drawn) |
| Surface Treatment | Annealed & Pickled/Polished |
| Length Options | Standard 6m / Customized available |
| Certification | ISO, PED certified |
Quality Assurance
- 100% PMI incoming inspection for material identification
- Strict process control throughout manufacturing
- Complete EN 10204 3.1 MTC documentation
- Hydrostatic testing or non-destructive testing for pressure capacity
- Precise dimensional tolerance and surface quality inspections
- Optional metallographic analysis and mechanical performance testing
Material Advantages
Duplex Stainless Steel Properties
Duplex stainless steel features a unique metallographic structure with approximately 50% austenite and 50% ferrite, combining the advantages of both stainless steel types:
- Excellent toughness and weldability from austenitic structure
- High strength and superior stress corrosion cracking resistance from ferritic structure
- More reliable and cost-effective than conventional austenitic stainless steel in corrosive environments
2205 Duplex Steel Characteristics
- Yield strength more than twice that of conventional 316L stainless steel
- Enables thinner wall thickness designs for weight and cost reduction
- High chromium, molybdenum, and nitrogen content (PREN ≥ 35)
- Exceptional resistance to pitting corrosion and crevice corrosion
- Superior stress corrosion cracking resistance in chloride environments
Marine Industry Applications
2205 duplex steel tubes are ideal for critical marine applications including:
- Process pipelines and seawater cooling systems
- Fire water systems and ballast water systems on offshore oil platforms
- Structural components and pipelines on ships and chemical transport vessels
- High-pressure pipelines and heat exchangers in seawater desalination (RO) equipment
Frequently Asked Questions
How does SMLSCO ensure stable supply of 2205 duplex steel?
SMLSCO maintains seamless tube stock through strong supply chain networks and strategic cooperation with core steel mills, ensuring continuous availability of special duplex steel pipes.
How can we trust the quality of 2205 pipes from SMLSCO?
We implement 100% PMI incoming inspection, strict process control, and provide complete EN 10204 3.1 MTC certification to ensure every pipe meets compliance standards.
How do SMLSCO's products demonstrate cost advantages while ensuring quality?
We optimize costs through bulk raw material procurement and efficient inventory management, delivering high-quality, cost-effective procurement solutions for global distributors.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Zhejiang Seamless Pipe Co., Ltd.
Location
No. 501, Changsheng South Road, Jiaxing, Zhejiang, China
Contact Person
Lee