ASTM A789 UNS S32205 Tubes en acier inoxydable duplex
UNS S32205 is a duplex stainless steel with a microstructure,when heat treated properly,od nearly equare proportions of austenite and ferrite.This microsturcture ensures that S32205 is much more resistant to stress corrosion cracking than SS304 and SS316L.The higher chromium,molybdenum and nitrogen contens give SS2205 significantly improved pitting and crevice-corrosion resistance in the presence of chlorides.SS2205 also has better general corrosion resistance than SS316L in most environment.In addition,SS2205 has a 0.2% Proof Stress of about double that of conventional austenitic stainless steels.

Duplex Steel ASTM A789 UNS S32205 Tubes Specification
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Specification | ASTM A789, ASTM A790, ASTM A928, ASME SA789, ASME SA790, ASME SA928 |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Grades | UNS S32205, UNS S31803, UNS S32750, UNS S32760, SAF® 2205, SAF® 2507, FERRINOX® 225, AMINOX® 225, ZERON® 100 |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Type | Sans soudure / Soudé / ERW / EFW / Etirage à froid / Finition à chaud / Finition à froid |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Outer Diameter Size | Sans soudure - 1/2″ NB A 18″ NB Soudé / ERW- 1″ NB TO 16″ NB EFW - 8″ NB À 110″ NB |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Wall Thickness | Schedule 10 à Schedule 160 (épaisseur de 3 mm à 100 mm) |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Length | 01 mètre à 12,5 mètres, longueur aléatoire simple, longueur aléatoire double et taille personnalisée. |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Ends | Plain Ends / Beveled Ends |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw, Bright Annealed |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Other Testing | Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| Shipment & Transportation | By Road – Truck / Train, By Sea – Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air – Freighter Civil Passenger and Cargo Planes |
| Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, |
Equivalent of ASTM A789 UNS S32205
| N° UNS | Euronorm | Vieux britannique | Japonais JIS | SS suédois | ||
| Non | Nom | BS | En | |||
| S32205 | 1.4462 | X2CrNiMoN22-5-3 | 318S13 | - | SUS 329J3L | 2377 |
SA 789 UNS S32205 Seamless Tube Size
| WT milimeter | OD milimeter | Sch | pouces | Kg/meter |
| 3.38 | 33.40 | 40S | 1 | 2.54 |
| 4.55 | 33.40 | Années 80 | 1 | 3.29 |
| 6.352 | 33.40 | 160 | 1 | 4.30 |
| 2.77 | 42.16 | 10S | 1¼ | 2.73 |
| 3.56 | 42.16 | 40S | 1¼ | 3.44 |
| 4.85 | 42.16 | Années 80 | 1¼ | 4.53 |
| 6.352 | 42.16 | 160 | 1¼ | 5.69 |
| 2.77 | 48.26 | 10S | 1½ | 3.16 |
| 3.68 | 48.26 | 40S | 1½ | 4.11 |
| 5.08 | 48.26 | Années 80 | 1½ | 5.49 |
| 2.77 | 60.33 | 10S | 2 | 3.99 |
| 3.91 | 60.33 | 40S | 2 | 5.52 |
| 5.54 | 60.33 | Années 80 | 2 | 7.60 |
| 8.742 | 60.33 | 160 | 2 | 11.29 |
| 3.05 | 73.03 | 10S | 2½ | 5.35 |
| 5.16 | 73.03 | 40S | 2½ | 8.77 |
| 7.01 | 73.03 | Années 80 | 2½ | 11.59 |
| 3.05 | 88.90 | 10S | 3 | 6.56 |
| 5.49 | 88.90 | 40S | 3 | 11.47 |
| 7.62 | 88.90 | Années 80 | 3 | 15.51 |
| 1.65 | 13.72 | 10S | 1/4 | 0.50 |
| 2.24 | 13.72 | 40S | 1/4 | 0.64 |
| 3.02 | 13.72 | Années 80 | 1/4 | 0.81 |
| 1.65 | 17.15 | 10S | 3/8 | 0.64 |
| 2.31 | 17.15 | 40S | 3/8 | 0.86 |
| 3.20 | 17.15 | Années 80 | 3/8 | 1.12 |
| 2.11 | 21.34 | 10S | 1/2 | 1.02 |
| 2.77 | 21.34 | 40S | 1/2 | 1.29 |
| 3.73 | 21.34 | Années 80 | 1/2 | 1.65 |
| 2.11 | 26.67 | 10S | 3/4 | 1.30 |
| 2.87 | 26.67 | 40S | 3/4 | 1.71 |
| 3.91 | 26.67 | Années 80 | 3/4 | 2.23 |
| 2.77 | 33.40 | 10S | 1 | 2.13 |
| 11.132 | 88.90 | 160 | 3 | 21.67 |
| 3.05 | 101.60 | 10S | 3½ | 7.53 |
| 5.74 | 101.60 | 40S | 3½ | 13.78 |
| 8.08 | 101.60 | Années 80 | 3½ | 18.92 |
| 3.05 | 114.30 | 10S | 4 | 8.50 |
| 6.02 | 114.30 | 40S | 4 | 16.32 |
| 8.56 | 114.30 | Années 80 | 4 | 22.67 |
| 13.492 | 114.30 | 160 | 4 | 34.05 |
| 6.55 | 141.30 | 40S | 5 | 22.10 |
| 9.53 | 141.30 | Années 80 | 5 | 31.44 |
| 15.882 | 141.30 | 160 | 5 | 49.87 |
| 3.4 | 168.28 | 10S | 6 | 14.04 |
| 7.11 | 168.28 | 40S | 6 | 28.69 |
| 10.97 | 168.28 | Années 80 | 6 | 43.21 |
| 14.27 | 168.28 | 120 | 6 | 54.75 |
| 18.262 | 168.28 | 160 | 6 | 68.59 |
| 8.18 | 219.08 | 40S | 8 | 43.20 |
| 12.7 | 219.08 | Années 80 | 8 | 65.63 |
| 18.23 | 219.08 | 120 | 8 | 91.30 |
| 23.012 | 219.08 | 160 | 8 | 112.97 |
Weight Chart of ASME SA 789 UNS S32205 Seamless Tube
| WT milimeter | OD milimeter | Sch | pouces | Kg/meter |
| 3.38 | 33.40 | 40S | 1 | 2.54 |
| 4.55 | 33.40 | Années 80 | 1 | 3.29 |
| 6.352) | 33.40 | 160 | 1 | 4.30 |
| 2.77 | 42.16 | 10S | 1¼ | 2.73 |
| 3.56 | 42.16 | 40S | 1¼ | 3.44 |
| 4.85 | 42.16 | Années 80 | 1¼ | 4.53 |
| 6.352) | 42.16 | 160 | 1¼ | 5.69 |
| 2.77 | 48.26 | 10S | 1½ | 3.16 |
| 3.68 | 48.26 | 40S | 1½ | 4.11 |
| 5.08 | 48.26 | Années 80 | 1½ | 5.49 |
| 2.77 | 60.33 | 10S | 2 | 3.99 |
| 3.91 | 60.33 | 40S | 2 | 5.52 |
| 5.54 | 60.33 | Années 80 | 2 | 7.60 |
| 8.742) | 60.33 | 160 | 2 | 11.29 |
| 3.05 | 73.03 | 10S | 2½ | 5.35 |
| 5.16 | 73.03 | 40S | 2½ | 8.77 |
| 7.01 | 73.03 | Années 80 | 2½ | 11.59 |
| 3.05 | 88.90 | 10S | 3 | 6.56 |
| 5.49 | 88.90 | 40S | 3 | 11.47 |
| 7.62 | 88.90 | Années 80 | 3 | 15.51 |
| 1.65 | 13.72 | 10S | 1/4 | 0.50 |
| 2.24 | 13.72 | 40S | 1/4 | 0.64 |
| 3.02 | 13.72 | Années 80 | 1/4 | 0.81 |
| 1.65 | 17.15 | 10S | 3/8 | 0.64 |
| 2.31 | 17.15 | 40S | 3/8 | 0.86 |
| 3.20 | 17.15 | Années 80 | 3/8 | 1.12 |
| 2.11 | 21.34 | 10S | 1/2 | 1.02 |
| 2.77 | 21.34 | 40S | 1/2 | 1.29 |
| 3.73 | 21.34 | Années 80 | 1/2 | 1.65 |
| 2.11 | 26.67 | 10S | 3/4 | 1.30 |
| 2.87 | 26.67 | 40S | 3/4 | 1.71 |
| 3.91 | 26.67 | Années 80 | 3/4 | 2.23 |
| 2.77 | 33.40 | 10S | 1 | 2.13 |
| 11.132) | 88.90 | 160 | 3 | 21.67 |
| 3.05 | 101.60 | 10S | 3½ | 7.53 |
| 5.74 | 101.60 | 40S | 3½ | 13.78 |
| 8.08 | 101.60 | Années 80 | 3½ | 18.92 |
| 3.05 | 114.30 | 10S | 4 | 8.50 |
| 6.02 | 114.30 | 40S | 4 | 16.32 |
| 8.56 | 114.30 | Années 80 | 4 | 22.67 |
| 13.492) | 114.30 | 160 | 4 | 34.05 |
| 6.55 | 141.30 | 40S | 5 | 22.10 |
| 9.53 | 141.30 | Années 80 | 5 | 31.44 |
| 15.882) | 141.30 | 160 | 5 | 49.87 |
| 3.4 | 168.28 | 10S | 6 | 14.04 |
| 7.11 | 168.28 | 40S | 6 | 28.69 |
| 10.97 | 168.28 | Années 80 | 6 | 43.21 |
| 14.27 | 168.28 | 120 | 6 | 54.75 |
| 18.262) | 168.28 | 160 | 6 | 68.59 |
| 8.18 | 219.08 | 40S | 8 | 43.20 |
| 12.7 | 219.08 | Années 80 | 8 | 65.63 |
| 18.23 | 219.08 | 120 | 8 | 91.30 |
| 23.012) | 219.08 | 160 | 8 | 112.97 |
Composition chimique
| Grade | C | Mn | Si | P | S | Cr | N | Fe | Mo | Ni |
| S32205 | 0,030 max | 2,00 max. | 1,00 max. | 0,030 max | 0,020 max | 22.0 – 23.0 | 0.14 – 0.20 | 63.72 min | 3.0 – 3.5 | 4.50 – 6.50 |
Propriétés mécaniques
| Notes | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Propriétés physiques
| Grade | Mean Co-eff of Thermal Expansion (μm/m/°C) | Density (kilogram/m3) | Specific Heat 0 to 100°C ( J/kg.K) | Résistivité électrique (nΩ.m) | Module d'élasticité (GPa) | Conductivité thermique (W/m.K) | |||
| 0-100°C | 0-315°C | 0-538°C | à 100°C | à 500°C | |||||
| UNS S32205 | 13.7 | 14.2 | - | 782 | 418 | 850 | 190 | 19 | - |
Pressure Rating of A789 Gr. UNS NO. S32205 Welded Tubing
| Tube O.D. (In.) | Wall Thickness Of Tube (Inches) | |||||||
| Pression de service (Psig) | ||||||||
| .028 | .120 | .035 | .109 | .095 | .049 | .083 | .065 | |
| 1/8 | 7900 | 10100 | ||||||
| 1/2 | 2300 | 3200 | 4400 | |||||
| 1/4 | 3700 | 4800 | 7000 | 9500 | ||||
| 3/4 | 4600 | 2200 | 4000 | 3000 | ||||
| 5/16 | 3700 | 5400 | 7300 | |||||
| 1 | 4300 | 3900 | 3400 | 2900 | 2200 | |||
| 3/8 | 3100 | 4400 | 6100 | |||||
UNS S32205 Duplex Stainless Steel Tubes Corrosion Resistance
Grade 2205 stainless steel exhibits excellent corrosion resistance, much higher than that of grade 316. It resists localized corrosion types like intergranular, crevice and pitting. The CPT of this type of stainless steel is around 35°C. This grade is resistant to chloride stress corrosion cracking (SCC) at temperatures of 150°C. Grade 2205 stainless steels are apt replacements to austenitic grades, especially in premature failure environments and marine environments.
UNS S32205 Duplex Stainless Steel Tubes Heat Resistance
The high oxidation resistance property of Grade 2205 is marred by its embrittlement above 300°C. This embrittlement can be modified by a full solution annealing treatment. This grade performs well at temperatures below 300°C.
Welding Characteristics:
1, Possesses good weldability
2, Should not generally be welded without filler metal as this may result in excessive ferrite
Heat Treatment:
1, Annealing temperature range is 1868 to 2012°F (1020 to 1100°C)
2, Cannot be hardened by heat treatment – but Duplex 2205 does work-harden
3, Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion
Usinabilité :
Le Duplex 2205 est un peu plus difficile à usiner que les aciers inoxydables austénitiques de la série 300. Il nécessite des forces de coupe plus élevées et s'accompagne généralement d'une usure plus rapide des outils. Voici quelques recommandations pour l’usinage : A) Utilisez des machines puissantes et rigides, avec un montage extrêmement solide et rigide des outils et de la pièce à usiner, B) Réduisez les vibrations au minimum en limitant autant que possible la longueur de l’outil, C) Utiliser un rayon de bout d’outil pas plus long que nécessaire pour les carbures présentant une arête vive tout en garantissant une résistance adéquate ; D) Concevoir les séquences d’usinage de manière à toujours maintenir une profondeur de coupe inférieure à la couche d’écrouissage résultant des passes précédentes.
Applications
1)Chemical process vessels, piping and heat exchangers
2)Pulp mill digesters, bleach washers, chip pre-steaming vessels
3)Food processing equipment
4)Oil field piping and heat exchangers
5)Flue gas desulfurization equipment
ASTM A789 Gr. UNS S32205 Tube Testing
Essai d'aplatissement
Micro and MacroTest
Pitting Resistance Test
Positive Material Identification – PMI Testing
Intergranular Corrosion (IGC) Test
Flaring Test
Hardness Test
Mechanical Testing Such as Tensile of Area
Chemical Analysis – Spectro Analysis
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