ASTM A312 UNS S32205 seamless pipe (Duplex 2205) offers twice the yield strength of 316L with superior chloride pitting and crevice corrosion resistance.
Delivery :
FOB
minimum order :
50 kilograms
Supply Ability :
5000kilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
add to cart
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ASTM A312 UNS S32205 seamless pipe is manufactured from duplex stainless steel 2205, a nitrogen-alloyed chromium-nickel-molybdenum steel offering approximately twice the yield strength of 316L with exceptional resistance to chloride pitting, crevice corrosion, and stress corrosion cracking.
1. Product Specifications & Physical Data
Specifications: ASTM A312, ASTM A790, ASME SA312, UNS S32205, EN 1.4462
Available Forms: Seamless pipe, welded pipe, fittings, flanges
Chemical Composition (Weight %)
Value
Chromium (Cr)
22.0 - 23.0
Nickel (Ni)
4.5 - 6.5
Molybdenum (Mo)
3.0 - 3.5
Nitrogen (N)
0.14 - 0.20
Carbon (C)
0.030 max.
Iron (Fe)
Balance
Physical & Mechanical Properties
Value
Density
7.8 g/cm³
Modulus of Elasticity
200 GPa
Tensile Strength (min.)
620 MPa (90 ksi)
Yield Strength (min., 0.2% offset)
450 MPa (65 ksi)
Elongation (min.)
25%
Service Temperature
Up to 316°C (600°F)
2. Fabrication & Material Comparison
Heat Treatment: Solution anneal at 1020-1100°C, water quench
Welding: Good weldability with controlled heat input; 2209 filler recommended
Machining: Higher cutting forces than 316L; requires rigid setups and sharp tools
Material Comparison
vs. 316L
vs. 317L
vs. Super Duplex 2507
Yield Strength
2× higher
Higher
Lower
Pitting Resistance
Superior
Superior
Lower
SCC Resistance
Superior
Superior
Comparable
Cost
Higher
Comparable
Lower
3. Applications
Chemical processing piping and pressure vessels
Offshore oil & gas subsea pipelines and topside piping
Marine seawater cooling and fire-fighting systems
Pulp & paper bleach plants
Power generation FGD systems
Desalination plants
Contact ZYTC Alloy for certified ASTM A312 UNS S32205 seamless pipe with complete traceability, material test reports, and competitive pricing. Available in standard and custom dimensions to meet your project requirements.
