Spezilla Tube Co., Ltd. (Shanghai)
| Payment Terms | T/T, L/C |
| Supply Ability | 100 TONS / MONTH |
| Delivery Time | WITHIN 30 DAYS |
| Packaging Details | WOODEN BOXED |
| Product Name | Duplex Stainless Steel Tube |
| Tube Shape | Duplex U Bend Tube |
| Manufacturing | Seamless |
| Surface | SOLUTION ANNEALED |
| Materials No. | 2205 UNS S31803 |
| OD | 1/2'' - 2'' |
| WT | 0.035'' - 0.083'' |
| Shape | Round |
| Package | Wooden Case |
| Application | Heat Exchanger Tube |
| Brand Name | SPEZILLA |
| Model Number | ASME SA789 |
| Certification | ISO9001:2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 100 TONS / MONTH |
| Delivery Time | WITHIN 30 DAYS | Packaging Details | WOODEN BOXED |
| Product Name | Duplex Stainless Steel Tube | Tube Shape | Duplex U Bend Tube |
| Manufacturing | Seamless | Surface | SOLUTION ANNEALED |
| Materials No. | 2205 UNS S31803 | OD | 1/2'' - 2'' |
| WT | 0.035'' - 0.083'' | Shape | Round |
| Package | Wooden Case | Application | Heat Exchanger Tube |
| Brand Name | SPEZILLA | Model Number | ASME SA789 |
| Certification | ISO9001:2008 | Place of Origin | CHINA |
| High Light | u bend tube ，welded finned tubes | ||
SA789 Duplex 2205 Stainless Steel SS Heat Exchanger Tube Seamless UNS S31803
Alloy 2205 (UNS S31803) is one of the most recognized and widely used duplex stainless steel grade, with excellent general corrosion resistance and superiority over grade 304 or 316 in most environments. Metline Industries is India’s one of the most trusted supplier of various grades of duplex stainless steels including UNS 31803 (F51) and UNS 32205 (F60) Alloy 2205. The ratio of ferrite to austenite in Duplex stainless steel is approximately 50:50.
The characteristic feature of duplex stainless steels is their dual phase microstructure, comprising of approximately 50% of austenitic and 50% of ferrite. The yield strength of duplex stainless steel is typically double that of austenitic stainless steel.
When compared to 2205 grade duplex stainless steel, 904L has similar corrosion resistant properties but lower mechanical strength. 2205 is also a lower cost option compared to 904L, but is not suitable for temperatures above 300°C. Grade 2205 is not generally suitable for use at temperatures above 300°C as it suffers from precipitation of brittle micro-constituents, nor below -50°C because of its ductile-to-brittle-transition.
Standard Technical Range
Additional Testing
We are equipped to carry out heat treatment of bends plus a minimum 150mm of leg.
Heat Treatment Equipment
| Spec. No. | Title | Scope |
|---|---|---|
| ASTM A 213 TubingASME SA 213 Tubing | Seamless Ferritic Stainless Steel and Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes. | Pressure tubes, made from 16 grades of austenitic stainless steel and from 12 grades of ferritic Cr-Mo Alloy Steel. |
| ASTM A 249 TubingASME SA 249 Tubing | Welded Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes. | Pressure tubes, made from austenitic stainless steels, (Types 304, 304H, 304L, 305, 309, 310, 316, 316H, 316L, 317, 321, 321H, 347, 347H, 348, 348H, and XM grades.) |
| ASTM A 268 TubingASME SA 268 Tubing | Seamless and Welded Ferritic Stainless Steel Tubing for General Service. | 15 grades of ferritic stainless steel tubing for general corrosion resistance and high temperature service. (Types 329, 405, 409, 410, 429, 430, 430Ti, 443, 446, XMs & others). |
| ASTM A 269 Tubing | Seamless and Welded Austenitic Stainless Steel Tubing for General Service. | 13 grades of austenitic stainless steel tubing for general corrosion-resisting and high-temperature service. (Types 304, 304L, 316, 316L, 317, 321, 347, 348 and XM grades). |
| ASTM A 270 Tubing | Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. | Austenitic stainless steel tubing intended for use in the diary and food industry in sizes up to and including 4 in. in outside diameter. |
| ASTM A 312 TubingASME SA 312 Tubing | Seamless and Welded Austenitic Stainless Steel Pipe. | Austenitic stainless steel pipe intended for high temperature and general corrosive service. 22 grades are covered. |
| ASTM A 358 TubingASME SA 358 Tubing | Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service. | For corrosion and high temperature service, normally not less than 8 in. nominal diameter. Types 304, 316, 309, 310, 321, 347, 304L, 316L, 304H, 316H. |
| ASTM A 376 TubingASME SA 376 Tubing | Seamless Austenitic Stainless Steel Pipe for High-Temp Central-Station Service. | Austenitic stainless steel pipe intended for high temperature and general corrosive service. Better surface than A312 pipe. |
| ASTM A 409 TubingASME SA 409 Tubing | Welded Large Outside Diameter Light Wall Austenitic Chromium-Nickel Alloy Steel Pipe for Corrosive or High Temperature Service. | Nominal diameter 14-30 in. in Schedules 5S and l0S. Types 304, 309, 310, 316, 317, 321, 347, 348, 304L, 316L. |
| ASTM A 450 TubingASME SA 450 Tubing | General requirements for Alloy Steel Tubes. | Common requirements for ASTM tubular specifications. |
| ASTM A 511 Tubing | Seamless Stainless Steel Mechanical Tubing. | 27 grades are covered for mechanical applications. Primarily round tubing. |
| ASTM A 530 TubingASME SA 530 Tubing | General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Pipe. | Common requirements for ASTM pipe specifications as listed. |
| ASTM A 554 Tubing | Welded Stainless Steel Mechanical Tubing. | Nineteen grades are covered for mechanical applications. Rounds, squares, rectangles, and special shapes are included. |
| ASTM A 632 Tubing | Seamless and Welded Austenitic Stainless Steel Tubing for General Service. Small Diameter. | 9 grades of austenitic stainless steel tubing for general corrosion-resisting and high-temperature service. |
| Chemical Composition % | ||||
| Cr | Ni | Mo | C | N |
| 22.0-23.0 | 4.50-6.50 | 3.00-3.50 | .030 Max | 0.14-0.20 |
| Mn | Si | P | S | Fe |
| 2.00 Max | 1.00 Max | .030 Max | .020 Max | Balance |
| Duplex Stainless Steel | |
| Density | 7.805 |
| Melting Range,℃ | 1450 ℃ |
| Elongation % | 25 min. |
| Tensile Strength (Mpa) | 655 |
| Yield Strngth (Mpa) | 450 |
| Hardness (Brinell) | 293 max |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2011
Total Annual:
>3000000.00
Ecer Certification：
Verified Supplier
Spezilla specialise in manufacturing high quality precision stainless steel tube and other corrosion resistant alloy tubes that are designed to industry and customer specifications. Our products are manufactured to the highest quality standards and are very competitively priced. Our mission is to pr... Spezilla specialise in manufacturing high quality precision stainless steel tube and other corrosion resistant alloy tubes that are designed to industry and customer specifications. Our products are manufactured to the highest quality standards and are very competitively priced. Our mission is to pr...
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