ASTM A789 UNS S32205 Duplex Stainless Steel Tubes
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, US S32750, UNS S32760, SAF® 2205, SAF® 2507, FERRINOX® 225, AMINOX® 225, ZERON® 100 |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Type | Zökkenőmentes / Hegesztett / ACRE / EFW / Cold Draw / Hot Finish / Cold Finish |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Outer Diameter Size | Zökkenőmentes – 1/2″ NB TO 18″ Megjegyzés Hegesztett / ACRE- 1″ NB TO 16″ Megjegyzés EFW – 8″ NB TO 110″ Megjegyzés |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Wall Thickness | Menetrend 10 to Schedule 160 (3 mm to 100 mm Thickness) |
| ASTM A789 UNS S32205 Duplex Stainless Steel Tubes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| 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 / Homokfúvás / Shot Blasting / Hőkezelés |
| 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
| US No | Euronorm | Old British | Japanese JIS | Swedish SS | ||
| Nem | Név | BS | En | |||
| S32205 | 1.4462 | X2CrNiMoN22-5-3 | 318S13 | – | SUS 329J3L | 2377 |
-on 789 UNS S32205 Seamless Tube Size
| WT milimeter | OD milimeter | Sch | hüvelyk | Kg/meter |
| 3.38 | 33.40 | 40S | 1 | 2.54 |
| 4.55 | 33.40 | 80S | 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 | 80S | 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 | 80S | 1½ | 5.49 |
| 2.77 | 60.33 | 10S | 2 | 3.99 |
| 3.91 | 60.33 | 40S | 2 | 5.52 |
| 5.54 | 60.33 | 80S | 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 | 80S | 2½ | 11.59 |
| 3.05 | 88.90 | 10S | 3 | 6.56 |
| 5.49 | 88.90 | 40S | 3 | 11.47 |
| 7.62 | 88.90 | 80S | 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 | 80S | 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 | 80S | 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 | 80S | 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 | 80S | 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 | 80S | 3½ | 18.92 |
| 3.05 | 114.30 | 10S | 4 | 8.50 |
| 6.02 | 114.30 | 40S | 4 | 16.32 |
| 8.56 | 114.30 | 80S | 4 | 22.67 |
| 13.492 | 114.30 | 160 | 4 | 34.05 |
| 6.55 | 141.30 | 40S | 5 | 22.10 |
| 9.53 | 141.30 | 80S | 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 | 80S | 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 | 80S | 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 | hüvelyk | Kg/meter |
| 3.38 | 33.40 | 40S | 1 | 2.54 |
| 4.55 | 33.40 | 80S | 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 | 80S | 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 | 80S | 1½ | 5.49 |
| 2.77 | 60.33 | 10S | 2 | 3.99 |
| 3.91 | 60.33 | 40S | 2 | 5.52 |
| 5.54 | 60.33 | 80S | 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 | 80S | 2½ | 11.59 |
| 3.05 | 88.90 | 10S | 3 | 6.56 |
| 5.49 | 88.90 | 40S | 3 | 11.47 |
| 7.62 | 88.90 | 80S | 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 | 80S | 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 | 80S | 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 | 80S | 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 | 80S | 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 | 80S | 3½ | 18.92 |
| 3.05 | 114.30 | 10S | 4 | 8.50 |
| 6.02 | 114.30 | 40S | 4 | 16.32 |
| 8.56 | 114.30 | 80S | 4 | 22.67 |
| 13.492) | 114.30 | 160 | 4 | 34.05 |
| 6.55 | 141.30 | 40S | 5 | 22.10 |
| 9.53 | 141.30 | 80S | 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 | 80S | 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 | 80S | 8 | 65.63 |
| 18.23 | 219.08 | 120 | 8 | 91.30 |
| 23.012) | 219.08 | 160 | 8 | 112.97 |
Chemical Composition
| Fokozat | C | Mn | És | P | S | Kr | N | FE | Mo | In |
| S32205 | 0.030 maximum | 2.00 maximum | 1.00 maximum | 0.030 maximum | 0.020 maximum | 22.0 – 23.0 | 0.14 – 0.20 | 63.72 miniszterelnök | 3.0 – 3.5 | 4.50 – 6.50 |
Mechanikai tulajdonságok
| Osztályok | Sűrűség (g/cm 3) | Sűrűség (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Fizikai tulajdonságok
| Fokozat | Mean Co-eff of Thermal Expansion (μm/m/°C) | Sűrűség (kilogram/m3) | Fajlagos hő 0 to 100°C ( J/kg.K) | Elektromos ellenállás (nΩ.m) | Rugalmassági modulus (GPA) | Hővezető képesség (W/M.K) | |||
| 0-100°C | 0-315°C | 0-538°C | 100 ° C -on | 500 ° C -on | |||||
| 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) | |||||||
| Üzemi nyomás (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
Fokozat 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. Fokozat 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
Hőkezelés:
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
Megmunkálhatóság:
Duplex 2205 is somewhat more difficult to machine than the 300 series austenitic stainless steels. Higher cutting forces are required and more rapid tool wear is typical. Some guidelines for machining are: A) Use powerful, rigid machines with extremely strong rigid mounting of tools and work piece, B) Minimize vibration by keeping the tool extension as short as possible, C) Use a nose radius on the tool, no longer than necessary, for carbides that have a sharp edge while still providing adequate strength, D) Design machining sequences to always provide for a depth of cut below the work hardened layer resulting from the previous passes.
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
Flattening Test
Micro and MacroTest
Pitting Resistance Test
Positive Material Identification – PMI Testing
Intergranular Corrosion (IGC) Teszt
Flaring Test
Hardness Test
Mechanical Testing Such as Tensile of Area
Chemical Analysis – Spectro Analysis
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