| Material: | Duplex Stainless Steel | Type: | Seamless And Welded |
|---|---|---|---|
| Shape: | Round Tubes |
| Product Name: | Boiler Tube | Standard: | ASTM A789 / ASME SA789 |
|---|---|---|---|
| Material: | Duplex Steel | End: | Plain Ends/ Beveled Ends |
| Form: | Straight &U Bend | Type: | Seamless &Welded |
| Packing: | Plywood Case，Bundle | ||
| High Light: | ASME SA789 Duplex Steel Tube，ASTM A789 S32205 Duplex Steel Tube，Duplex Steel Tube， Boiler Tube，Condenser Tube | ||
ASTM A789 / ASME SA789 S32205 Duplex Steel Tube
Overview
ASTM A789 covers seamless and welded ferritic/austenitic stainless steel tubing for general corrosion-resistant and low- or high-temperature service. S32205 is a specific grade of duplex stainless steel that is covered by this specification.
S32205， also known as Duplex 2205， is a duplex stainless steel that offers a combination of high strength and excellent corrosion resistance. It has a balanced microstructure of austenite and ferrite， which provides improved resistance to stress corrosion cracking， pitting， and crevice corrosion. This makes it suitable for a wide range of applications in industries such as oil and gas， chemical processing， desalination plants， heat exchangers， pulp and paper， and marine environments.
Chemical Composition of ASTM A789 S32205
| Grade | C | Mn | S | P | Si | Ni | Cr | Mo | N | |
| S32205 | Min | 4.5 | 22.0 | 3.0 | 0.14 | |||||
| Max | 0.03 | 2.0 | 0.02 | 0.03 | 1.0 | 6.5 | 23.0 | 3.5 | 0.20 |
Mechanical Properies of ASTM A789 S32205
| Grade | Tensile Str Ksi(Mpa) | Yield Str Ksi(Mpa) | Elongation(%) | Brinell(HBW) | Rockwell C(HRC) |
| S32205 | ≥95(655) | ≥70(485) | ≥25 | ≥290 | ≥30 |
Wall Thickness Tolerance of ASTM A789
| OD Range | TYPE | Wall Thickness Tolerance | |
| Average | Mln. | ||
| 0~12.7mm (Incl.) | SMLS&WLD | (+/-15%) | (0，+30%) |
| 12.7~38.1mm (Incl.) | SMLS&WLD | (+/-10%) | (0，+20%) |
| 38.1~88.9mm (Incl.) | SMLS&WLD | (+/-10%) | (0，+20%) |
| 88.9~139.7mm(Incl.) | SMLS&WLD | (+/-10%) | (0，+20%) |
| 139.7~203.2mm(Incl.) | SMLS&WLD | (+/-10%) | (0，+20%) |
Length Tolerance of ASTM A789
| Length Tolerance | |||
| Range(m) | TYPE | OD range | Tolerance |
| 0~24ft (7.3m Incl.) | SMLS+Hot Finished | All Sizes | 0，+5mm |
| 0~24ft (7.3m Incl.) | SMLS+Cold Finished | <50.8mm | 0，+3mm |
| 0~24ft (7.3m Incl.) | SMLS+Cold Finished | 50.8mm(Incl.) to Up | 0，+5mm |
| 0~24ft (7.3m Incl.) | WLD | <50.8mm | 0，+3mm |
| 0~24ft (7.3m Incl.) | WLD | 50.8mm(Incl.) to Up | 0，+5mm |
Uses&Application
1>.Oil and Gas Industry: S32205 tubing is used in offshore platforms， subsea pipelines， and oil refineries due to its high strength， resistance to corrosion， and ability to withstand harsh environments.
2>.Chemical Processing: The chemical industry utilizes S32205 tubing for applications such as chemical reactors， heat exchangers， and storage tanks. Its resistance to corrosion from various chemicals and high temperature makes it suitable for these applications.
3>.Desalination Plants: S32205 tubing is used in desalination plants for seawater intake and brine outflow systems. Its corrosion resistance and high strength make it ideal for handling corrosive seawater.
4>.Pulp and Paper Industry: S32205 tubing is employed in the pulp and paper industry for applications like digesters， bleach washers， and evaporators. Its resistance to corrosion from chemicals and high temperature makes it suitable for these harsh environments.
5>.Heat Exchangers: S32205 tubing is used in heat exchangers for various industries， including power generation， chemical processing， and HVAC systems. Its high thermal conductivity and corrosion resistance make it an excellent choice for efficient heat transfer.
6>.Marine Environments: Due to its resistance to corrosion from seawater and chloride-containing environments， S32205 tubing is used in marine applications such as shipbuilding， offshore structures， and seawater cooling systems.
