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ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments

ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments

  • ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments
  • ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments
  • ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments
  • ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments
ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments
Product Details:
Place of Origin: China
Brand Name: YUHONG
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015
Model Number: ASTM A789 S31803 SAF2205
Payment & Shipping Terms:
Minimum Order Quantity: 500KGS
Price: NEGOTIABLE
Packaging Details: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time: 10-90 Days
Payment Terms: L/C, T/T
Supply Ability: According To Client's Request
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Detailed Product Description
Standard: ASTM A789 SAF2205 Grade: UNS S31803
Material: Duplex Stainless Steel Outside Diameter: 1/8"-48"
Wall Thickness: SCH5S To SCHXXS Types: Seamless
End: BE/PE Length: 6m, 12m, Or As Required
Highlight:

SAF2205 Duplex Steel Seamless Tube

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Aggressive Environments Duplex Steel Seamless Tube

,

ASTM A789 Duplex Steel Seamless Tube

ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube

 

 

ASTM A789 UNS S31803 (SAF2205) duplex stainless steel pipe is a seamless or welded pipe with excellent mechanical properties and excellent corrosion resistance, which is widely used in harsh environments. Its composition is about 22% chromium, 5-6% nickel, 3% molybdenum and nitrogen, forming an austenite-ferrite duplex microstructure, giving it high strength (yield strength ≥ 450MPa), excellent resistance to stress corrosion cracking, pitting and crevice corrosion, especially in chloride ion environments.

 

ASTM A789 UNS S31803 (SAF2205) duplex stainless steel pipe is suitable for fields such as oil and gas, marine engineering, chemical processing and seawater desalination. With the risk of no weld defects in the seamless process, it is particularly suitable for high pressure and high cycle load scenarios. At the same time, compared with traditional austenitic stainless steel (such as 316L), it can reduce wall thickness and reduce material costs. It is an ideal choice for both corrosion resistance and high strength requirements.

 

 

Chemical Composition of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Tubes

 

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
 
 
 

Mechanical Composition of ASTM A789 UNS S31803 Duplex Stainless Steel Seamless Tubes

 

Grade Tensile Strength
(MPa) min		 Yield Strength
0.2% Proof
(MPa) min		 Elongation
(% in 50mm) min		 Hardness
Rockwell C (HR C) Brinell (HB)
UNS S31803 / 2205 621 448 25 31 max 293 max
 

 

Physical Properties Of ASTM A789 UNS S31803 Duplex Stainless Steel Seamless Tubes

 

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 S31803 / 2205 782 190 13.7 14.2 - 19 - 418 850
 
 
 

Grade Specification Comparison

 

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
 

 

 

 


Application Of ASTM A789 S32205 Duplex Steel SeamlessTube.

 

 

Oil & Gas: Subsea pipelines, heat exchangers, umbilicals.
 
Chemical Processing: Reactors, condensers, acid handling.
 
Desalination Plants: RO tubes, brine heaters.
 
Power Generation: Cooling systems, condenser tubes.
 
Marine: Shipbuilding components exposed to seawater.

 

 

 

 

 

ASTM A789 UNS S31803 SAF2205 Duplex Steel Seamless Tube In Aggressive Environments 0

Tag:

duplex steel pipes,

welded steel pipe,

SAF2205 Duplex Steel Seamless Tube

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