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Quality 2205 Stainless Steel Round Pipe UNS S32205 Seamless Welded For Oil Gas Marine Applications factory
Quality 2205 Stainless Steel Round Pipe UNS S32205 Seamless Welded For Oil Gas Marine Applications factory

2205 Stainless Steel Round Pipe UNS S32205 Seamless Welded For Oil Gas Marine Applications

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
Model Number: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
Tags

Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

Stainless Steel Round Pipe UNS S32205
Product Summary
2205 stainless steel round tube is a high-strength, highly corrosion-resistant specialty pipe material. Its microstructure consists of approximately 50% ferrite and 50% austenite in a duplex configuration. This unique microstructure gives it nearly twice the yield strength of ordinary stainless ...

Product Details

Highlight:

Stainless Steel Round Pipe UNS S32205

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Stainless Steel Round Pipe Seamless

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2205 Stainless Steel Pipe Welded
Country Of Origin: MADE IN CHAINA
Brand: Baosteel，TISCO
Certifications: ISO/EN 10204 Type 3.1 / 3.2 Available
Grade: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH)
MOQ: 100kg
Price: Negotiable (Request A Quote)
Packaging: Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time: 15-25days
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Capacity: 10000tons
Product Description

2205 stainless steel round tube is a high-strength, highly corrosion-resistant specialty pipe material. Its microstructure consists of approximately 50% ferrite and 50% austenite in a duplex configuration. This unique microstructure gives it nearly twice the yield strength of ordinary stainless steel, while also exhibiting excellent resistance to stress corrosion cracking in chloride ion environments.
Compared to 304 and 316L austenitic stainless steels, 2205 can withstand higher pressures with the same wall thickness, or allows for thinner wall thicknesses to achieve weight reduction and cost savings, making it an ideal material for industries such as petrochemicals, marine engineering, and papermaking.

Key Specifications at a Glance
ParameterValue
Material Grade2205 Duplex (UNS S31803 / S32205)
StandardsASTM A789, A790, A928; EN 10216-5; GB/T 21833
Equivalent GradesUNS S32205, 1.4462, F51, SAF™ 2205
Production MethodsSeamless / Welded (ERW)
Surface FinishBlack / Bright Annealed (BA) / Polished (Mirror) / Pickled
2205 stainless steel round tube Chemical Composition (ASTM A790)
ElementContent (%)ElementContent (%)
Carbon (C)≤ 0.030Chromium (Cr)21.0 – 23.0
Silicon (Si)≤ 1.00Nickel (Ni)4.5 – 6.5
Manganese (Mn)≤ 2.00Molybdenum (Mo)2.5 – 3.5
Phosphorus (P)≤ 0.030Nitrogen (N)0.08 – 0.20
Sulfur (S)≤ 0.020Iron (Fe)Balance

*Two-phase microstructure: approx. 40–50% ferrite + 50–60% austenite*

2205 stainless steel round tube Mechanical Properties
PropertyValue
Tensile Strength≥ 620 MPa (90 KSI)
Yield Strength (0.2% offset)≥ 450 MPa (65 KSI)
Elongation≥ 25%
Hardness≤ 293 HB / ≤ 30 HRC
Impact ToughnessGood down to -40°F (-40°C)

*Yield strength is approximately twice that of 304/316L austenitic stainless steel*

Physical Properties
PropertyValue
Density7.8 g/cm³ (0.282 lb/in³)
Modulus of Elasticity190 GPa (27,600 KSI)
Thermal Conductivity19.0 W/m·K (at 68°F)
Coefficient of Thermal Expansion13.7 × 10⁻⁶ /°C (68–212°F)
Electrical Resistivity80 μΩ·cm
Specific Heat500 J/kg·K
Dimensions & Sizes
ParameterRange
Outer Diameter (OD)6mm – 600mm (0.236″ – 24″)
Wall Thickness0.5mm – 40mm (0.020″ – 1.575″)
Length3m – 12m (10′ – 40′); custom lengths available
Tolerance (OD)±0.1mm for cold drawn; ±0.5mm for hot finished

Common Stock Sizes (OD × WT in mm):
21.3 × 2.0 / 26.9 × 2.5 / 33.7 × 3.0 / 42.4 × 3.0 / 48.3 × 3.5 / 60.3 × 3.5 / 76.1 × 4.0 / 88.9 × 4.0 / 101.6 × 4.0 / 114.3 × 4.5 / 141.3 × 5.0 / 168.3 × 5.0

Corrosion Resistance Advantages
Property2205 Performance vs. 316L
Pitting Resistance Equivalent Number (PREN)≥ 35 (vs. 316L at 25)
Stress Corrosion Cracking (SCC)Excellent resistance in chloride environments
Pitting & Crevice CorrosionSuperior to 316L and 317L
General CorrosionBetter than 316L in most media

*2205 is the practical solution to chloride SCC problems that plague 304/316L stainless steels*

Temperature Limits
ConditionLimit
Recommended Service Temperature-50°F to 600°F (-46°C to 316°C)
Maximum Continuous Service600°F (316°C)
Minimum Service Temperature (impact tested)-50°F (-46°C)

Extended elevated temperature exposure above 600°F can cause embrittlement

Key Applications
IndustryApplications
Oil & GasFlowlines, production tubing, offshore platforms, sour service
Chemical ProcessingPressure vessels, heat exchangers, piping systems
MarineSeawater handling, desalination plants, shipbuilding
Pulp & PaperDigesters, bleach washers, chip pre-steaming vessels
Food ProcessingEquipment requiring corrosion resistance and cleanability
ConstructionStructural components, bridges, and architectural features
Packaging
Packaging TypeDescription
Standard ExportSteel strapping + rust preventive oil + waterproof plastic wrap + wooden crates
Individual ProtectionPlastic end caps (for polished/bright finish)
Bundle PackagingHexagonal bundles for small-diameter tubes
Bulk PackagingSteel-banded bundles for large-diameter pipes
LabelingGrade (2205), standard (ASTM A790), heat number, OD × WT, length, net weight

Custom packaging available upon request (palletized, fumigated wooden cases, rust-free, etc.)

Ordering Information

Please specify the following when placing an 2205 stainless steel round tube order: Provide specifications, quantity, and requirements; we will provide a quote within 24 hours and ship worldwide.

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