Powered by Made-in-China.com
Uns S31803 Duplex Stainless Steel Pipe
US$670.00
50-99 Tons
US$660.00
100-199 Tons
US$650.00
200+ Tons
Sample price:US$500.00/piece.Request sample
Product profile
Customization
AvailableType
Stainless Steel BarsStandard
ASTMModel NO.
UNS S31803 Duplex Stainless SteelGrade
300 SeriesCertification
ASTMShape
RoundTechnique
Cold RolledSurface Treatment
BrightTransport Package
FullSpecification
CustomizedTrademark
ShanshuiOrigin
LiaochengHS Code
7201500010Production Capacity
5000 Tons/YearKey features
High Mechanical Strength: Twice the strength of Type 304 austenitic stainless steel, reducing plate thickness and weight.
Superior Corrosion Resistance: Excellent resistance to chloride pitting, crevice corrosion, and seawater environments.
Cost-Effective Solution: Lower cost compared to other duplex steels due to lower molybdenum content.
Versatile Applications: Widely used in oil & gas, chemical, marine, desalination, and paper industries.
Excellent Weldability: Good weldability in thick plates with resistance to stress corrosion cracking.
Dual Certification: S32205 can be dual-certified as S31803, ensuring high performance standards.
Low Temperature Toughness: Maintains toughness in low temperature environments for various applications.
Minor Customization: Available for minor customization options to meet specific client needs.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Minor Customization CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao Port, Tianjin PortAverage Response Time: ≤6.17h CertifiedTerms of Payment: T/T, LC
AI-Powered supplier vetting
SummaryThe supplier is explicitly identified as a professional technical supplier with R&D capability, 3D software design services, and broad customization options. It provides ODM and OEM services, has valid manufacturing contracts with associated subcontractors, in-stock capability, and documented procedures for supplier assessment, corrective actions, and complaint handling. Export activity is established, with 11 years of exporting experience, self-operated import/export rights, and exports representing 51%–70% of sales. However, the supplier has no available SDK, reported no new products in the past year, lacks overseas warehouses, showrooms, agents, and branches, and has not participated in offline trade shows. Finished products are checked by packing staff, while raw-material traceability is absent. No certification information, explicit after-sales service information, or customer case details are provided.
Supplier typeThe supplier is explicitly described as a professional technical supplier. Its stated business scope covers metal materials, hardware products, hardware R&D, special steel materials, and import/export activities, indicating a hardware and metal-materials supplier with technical development capability.
After-Sales capabilityThe supplier has clear procedures and followed records for handling customer complaints and corrective/preventive actions, which supports service-process capability. However, no broader after-sales service coverage, service network, or response commitment is provided.
R&D capabilityThe supplier reports professional R&D capability, 3D software design services, and ODM capability. However, it has no available SDK and reported no new products in the past year, indicating some innovation limitations despite design and development services.
Production capacityProduction support is evidenced by valid contracts with each associated subcontractor, in-stock capability, lead times within 15 working days in both peak and off-season, five qualified service-capability suppliers, and documented assessment procedures. Quality assurance is present, although finished-product checking is performed by packing staff and raw-material traceability is unavailable.
Customization capabilityThe supplier explicitly offers customization from designs, samples, full customization, minor customization, and flexible customization. Its ODM and OEM services further support the conclusion that it can undertake customized product development and manufacturing.
Client casesThe supplier states that it provides OEM services for well-known brands, which is direct evidence of at least one type of customer engagement. No named customers, project details, order scope, or performance outcomes are supplied, so the breadth and verifiability of customer cases remain unclear.
Product Q&A
Q:How does UNS S31803 compare to Type 304 stainless steel?
A:
UNS S31803 typically has twice the strength of Type 304 and offers significantly better corrosion resistance.
Q:What are the main differences between S31803 and S32205?
A:
S32205 is a higher-performing grade with optimized levels of chromium, molybdenum, and nitrogen, meeting the top end of the specification range.
Q:What are the minimum mechanical properties of UNS S31803?
A:
Minimum Tensile Strength is 620 MPa, Yield Strength is 450 MPa, Elongation is 25%, and Max Hardness is 290 HB.
Q:What are the available surface treatment options?
A:
Options include Black Surface, Grounded, Machining, Peeled/Turned, and Polished finishes.
Q:What is the Minimum Order Quantity (MOQ)?
A:
The Minimum Order Quantity is 25 tons.
Send Inquiry
*To:
Shandong Chenze Steel Co., Ltd.
Shandong Chenze Steel Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Uns S31803/2205 Super Duplex Steel Tube ASTM A312 TP304/304/Uns S30400 Steel Pipe
US$850.00-1,050.00
1 Ton(MOQ)
1.4462, Uns S31803/Uns S32205 Duplex/Super Duplex Stainless Steel Pipe
US$1,000.00-2,500.00
1 Ton(MOQ)
ASTM A789 S32750 Uns Super Duplex Stainless Steel Pipe
US$6.20
50 kg(MOQ)
Duplex Stainless Steel Pipe Gr. S31803 12 inch SCH80S ASTM A790
US$4,800.00-5,800.00
1 Ton(MOQ)
ASTM A790 S32205 S31803 Duplex Stainless Seamless Steel Pipe for Marine and Chemical Industry
US$2,800.00-3,200.00
1 Ton(MOQ)
ASTM A790 S31803 2205 Duplex Seamless Stainless Steel Pipe
US$1,200.00-1,500.00
1 Ton(MOQ)
High Quality Duplex Stainless Steel 2205 Pipe ASTM A790 Duplex S31803 Pipa Seamless Tube
US$3,500.00-4,500.00
1 Ton(MOQ)
Hot Selling Industrial Round Tube Large Stock ASTM A312 A790 Uns S32205 Duplex Stainless Steel Pipe
US$1,200.00-1,500.00
1 Ton(MOQ)
Uns S32205 Grade 2205 Uns S32750 Grade 2507 2-1/2 Inch Sch10s Round Tube ASME A790 Super Duplex Stainless Steel Pipe
US$1,200.00-1,500.00
1 Ton(MOQ)
ASME SA789 UNS S32750 2507 Super Duplex Stainless Steel Seamless Tubes Pipes
US$8,000.00-11,000.00
1 Ton(MOQ)
Ferralium 255 Duplex Uns S32550/F61 Stainless Steel Seamless Pipe
US$1,900.00-3,500.00
3 Tons(MOQ)
Uns S31803 S32205 1.4462 Super Duplex Steel Seamless ERW Pipes
US$2,500.00
5 Tons(MOQ)
Dss S31803 S32750 2205 2507 Duplex Stainless Steel Pipes
US$1,530.00-1,850.00
1 Ton(MOQ)
Duplex 2205 / Uns31803 S31803 Stainless Steel Seamless Pipe
US$1,716.99-7,719.99
1 Ton(MOQ)
Premium Seamless Duplex Stainless Steel Pipe Uns S31803 for Industrial Use
US$2,500.00
1 Ton(MOQ)
Customized S31803/00cr22ni5mo3n 2205 Stainless Steel 1.4462 Duplex Stainless Steel Pipe
US$850.00-1,050.00
1 Ton(MOQ)
Premium Seamless Duplex Steel Pipe with ASTM SA 790 Uns S31803 Standard
US$1.00
1 Meter(MOQ)
Uns S32304 Duplex Stainless Steel Pipe
Negotiable
50 Meters(MOQ)



















