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|Product Name:||TP409/409L Ferritic Stainless Steel Tube||Specification:||ASTM A268, ASME SA268|
|Material Grade:||TP409/S409000||Size Range:||5/8"-2"|
|Finishing Options:||Pickling, Polishing, Custom Cutting||Test Certificate:||EN10204 3.1|
|Packaging:||Wooden Box, Bundled, Export Packaging Available||Application:||Boiler,Heat Exchanger|
industrial stainless steel pipe,
ss round tube
TP409/409L S409000 Ferritic Stainless Steel Seamless Tube For Automative
Grade 409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.
Grade 409 steels are also available in highly stabilized forms, such as grades S40930, S40920 and S40910. The stability of these grades is provided by the presence of niobium, titanium, or both, in the composition of steels.
The typical applications of grade 409 stainless steels are listed below:
Grade 409 stainless steels offer scaling resistance at temperatures up to 675°C during continuous operation, and up to 815°C under intermittent conditions. These temperatures pertain to specific service environments.
Annealing of grade 409 steels is carried out at temperatures ranging from 790 to 900°C, followed by air-cooling. Thermal treatment does not harden grade 409 steels.
Grade 409 steels must be pre-heated to temperatures of 150 to 260°C before welding. Although grade 430 and 409 filler rods or electrodes can be used during welding of grade 409 steels, grade 309 electrodes or filler rods are strongly recommended by AS 1554.6. Care should be taken to weld grade 409 steels with minimum heat, in order to mitigate grain growth.
Ductility of the welded products can be improved by annealing post-welding at temperatures of 760 to 815°C. However, this is not required for thin welded products. Welding of exhaust tubing of automobiles is carried out without filler rods.
Spezilla's seamless bright annealed stainless steel tubes are produced acc. to the following process and inspection to assure our quality:
1. Chemical Composition Analysis Test With 100% PMI.
2. Solution Annealing / Bright Annealed.
3. 100% Hydrostatic Test and 100% Eddy Current Test
4. Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test.
5. Impact Test subject to Standard request.
6. Grain Size Test and Intergranular Corrosion Test.
7. Visual Test and Endoscope Test for Surface Quality Test
Type 409 stainless steel has a unique chemical composition that includes:
|Tube OD.:||1/4'' - 2''|
|Wall:||0.028'' - 0.120''|
|Standard:||ASTM A268 ASME SA268|
|Finish:||Annealed & Pickled.|
|Type:||Seamless Cold Drawn|
|Mill Test Certificate:||EN10204 3.1|
Sleeved, Wooden Boxed
Typical Manufacturing Specifications:
- Harding by heat treatment
- High hardness with good ductility
- Good corrosion resistance capability
- Good wear corrosion resistance
- High cold-deformation property
Available Tube Product Forms:
Used for parts requiring a combination of good strength and toughness, plus reasonable corrosion resistance. Typical applications are: Bolts, Bushings, Fasteners, Gas Turbine Parts, Mine Equipment, Pump Parts, Petrochemical Equipment, Steam Turbine Parts, Studs, Valve Parts etc.
Material magnetic in all conditions.
Solution at 120°F
|Corrosion Rate in Mils per Year and Millimeters per Year (mm/a)|
|Alloy 409||Alloy 410S||Alloy 420||Alloy 425 Mod||Alloy 440A||Alloy 430|
ASTM A268 Tp410 tube composition:
|Min. %||Max %|
|*Nickel additional option|
Contact Person: Will Ma
Tel: +86 13918539222