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Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Specifications
Brand Name :
YUHONG
Model Number :
ASTM A789 UNS S31803 Seamless Duplex Steel Tube
Certification :
ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
500kgs
Payment Terms :
L/C, T/T
Delivery Time :
7 DAYS
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product Name :
Duplex Steel Tube
Specification :
ASTM A789, ASME SA789
Grade :
Duplex 2205 , UNS S31803
Size :
can custom
Length :
Single Random, Double Random & Cut Length
Tube End :
Plain End, Beveled End
Type :
Seamless, Welded
High Light :
ASTM A789 UNS S31803 Duplex Stainless Steel Tube, Duplex 2205 Seamless Tubing
Description

ASTM A789 Duplex 2205 / UNS S31803 Seamless Duplex Stainless Steel Tube

Duplex S31803 is also known as UNS S32205. This type of tubing is characterized by its dual-phase microstructure, combining features of both austenitic and ferritic stainless steels. Despite its high-performance characteristics, Duplex S31803 tubing is relatively cost-effective compared to other high-alloy steels. Its durability and longevity contribute to lower maintenance costs and longer service life, providing a cost-efficient solution for many industrial applications.

ASTM A789 UNS S31803 Duplex Steel Tube Equivalent Grade

Grade UNS
No		 Old British Euronorm Swedish SS Japanese JIS
BS En No Name
2205 S31803 / S32205 318S13 - 1.4462 X2CrNiMoN22-5-3 2377 SUS 329J3L

ASTM A789 UNS S31803 Duplex Steel Tube Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
2205 (UNS S31803) Min Max - 0.030 - 2.00 - 1.00 - 0.030 - 0.020 21.0 - 23.0 2.5 - 3.5 4.5 - 6.5 0.08 - 0.20
2205 (UNS S32205) Min Max - 0.030 - 2.00 - 1.00 - 0.030 - 0.020 22.0 - 23.0 3.0 - 3.5 4.5 - 6.5 0.14 - 0.20

ASTM A789 UNS S31803 Duplex Steel Tube Physical Properties

Grade Density
(kg/m3)		 Elastic
Modulus (GPa)		 Mean Co-eff of Thermal
Expansion (μm/m/°C)		 Thermal
Conductivity (W/m.K)		 Specific
Heat
0-100°C ( J/kg.K)		 Electrical
Resistivity
(nΩ.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
UNS S32205 / 2205 782 190 13.7 14.2 - 19 - 418 850

ASTM A789 UNS S31803 Duplex Steel Tube Mechanical Composition

Grade Tensile Strength
(MPa) min		 Yield Strength
0.2% Proof
(MPa) min		 Elongation
(% in 50mm) min		 Hardness
Rockwell C (HR C) Brinell (HB)
UNS S32205 / 2205 621 448 25 31 max 293 max

Here are some of the key advantages of using duplex S31803 tubes:

  1. Corrosion Resistance: Duplex S31803 tubes exhibit excellent resistance to corrosion in various environments, including chloride-containing and acidic environments, making them suitable for harsh industrial applications.

  2. High Strength: These tubes have higher strength compared to austenitic stainless steels, allowing for thinner wall thicknesses and lighter weight designs while maintaining structural integrity.

  3. Good Toughness: Duplex S31803 tubes offer good toughness, making them suitable for applications where impact resistance is important.

  4. Good Weldability: They have good weldability characteristics, which simplifies the fabrication process and reduces the risk of welding defects.

  5. High Temperature Resistance: Duplex S31803 tubes can withstand high temperatures, making them suitable for applications in elevated temperature environments.

  6. Cost-Effective: Despite their superior properties, duplex S31803 tubes are relatively cost-effective compared to other high-performance materials.

  7. Low Thermal Expansion: These tubes have low thermal expansion coefficients, which helps reduce the risk of thermal distortion in applications involving temperature fluctuations.

  8. Erosion Resistance: Duplex S31803 tubes offer good resistance to erosion and erosion-corrosion, making them suitable for applications where abrasive substances are present.

Applications

  1. Oil and Gas Industry

  2. Chemical Processing

  3. Desalination Plants

  4. Power Generation

  5. Heat Exchangers

  6. Pulp and Paper Industry

  7. Automotive Industry

  8. Construction

Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube

Product tags

astm a500 steel tubing

,

astm a269 tubing

,

alloy 825 tubing
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Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM A789 UNS S31803 Seamless Duplex Steel Tube
Certification :
ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
500kgs
Payment Terms :
L/C, T/T
Contact Supplier
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube
Duplex 2205 Seamless Tube , ASTM A789 UNS S31803 Duplex Steel Tube

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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