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National Standard / Region | Grade | Description |
---|---|---|
ASTM (United States) | 409L, UNS S40903 | ASTM A268 - Standard specification for seamless and welded ferritic and martensitic stainless steel tubing for general service may cover 409L stainless steel pipes. |
EN (European Union) | 1.4512 (X2CrTi12) | EN 10296-2 - Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel may include 409L stainless steel pipes. |
JIS (Japan) | SUS409L | JIS G3459 - Stainless steel pipes may include 409L stainless steel pipes as a part of its scope. |
GB (China) | 0Cr11Ti | GB/T 12771 - Welded stainless steel pipes for liquid delivery may include 409L stainless steel pipes as a part of its scope. |
IS (India) | NA | There may not be a specific Indian standard for 409L stainless steel pipes, but international standards like ASTM or EN may be followed. |
Element | Percentage Range |
---|---|
Carbon (C) | 0.03% (max) |
Silicon (Si) | 1.0% (max) |
Manganese (Mn) | 1.0% (max) |
Phosphorus (P) | 0.04% (max) |
Sulfur (S) | 0.02% (max) |
Chromium (Cr) | 10.5% - 12.5% |
Titanium (Ti) | 6 x C% (min) |
Property | Value |
---|---|
Tensile Strength (UTS) | 380 - 560 MPa |
Yield Strength (YS) | 205 - 275 MPa |
Elongation at Break | 20% (min) |
Hardness (Brinell, HB) | 147 (max) |
Hardness (Rockwell, HRB) | 88 (max) |
Density | 7.7 g/cm³ |
Modulus of Elasticity | 200 GPa |
Poisson's Ratio | 0.3 |
Application | Description |
---|---|
Automotive Exhaust Systems | 409L stainless steel pipes are commonly used in automotive exhaust systems due to their corrosion resistance and high-temperature durability. |
Heat Exchangers and Condenser Tubes | Used in heat exchangers and condenser tubes for applications involving heat transfer and thermal conductivity. |
Industrial Equipment and Machinery | Utilized in various industrial equipment, including pumps, fans, and conveyors, due to their corrosion resistance and strength. |
Construction and Architectural Uses | 409L stainless steel pipes are sometimes used in construction for structural elements and architectural features due to their appearance and corrosion resistance. |
Appliances and Kitchen Equipment | Found in household appliances like stoves, ovens, and range hoods, as well as commercial kitchen equipment due to their heat resistance. |
Water and Wastewater Treatment | Used in water treatment plants for piping systems and equipment due to their corrosion resistance in aqueous environments. |
Itme | Surface finishing | Surface finishing methods | Main application |
NO.1 | HR | Heat treatment after hot rolling, pickling, or with treatment | For without the purpose of the surface gloss |
NO.2D | Without the SPM | Method of heat treatment after cold rolling, pickling surface roller with wool or eventually a light rolling a matte surface processing | General materials,building materials. |
NO.2B | After SPM | Giving No.2 processing materials appropriate method of cold light sheen | General materials, building materials ( most of the goods are processed ) |
BA | Bright annealed | Bright heat treatment after cold rolling , in order to be more shiny, cold light effect | Automotive parts, home appliances, vehicles, medical equipment, food equipment |
NO.3 | Shiny, coarse grain processing | The NO.2D or NO.2B processing timber No. 100-120 polishing abrasive grinding belt | Building materials, kitchen supplies |
NO.4 | After CPL | The NO.2D or NO.2B processing timber No. 150-180 polishing abrasive grinding belt | Building materials, kitchen supplies, vehicles, medical equipment, food equipment |
240# | Grinding of fine lines | The NO.2D or NO.2B processing timber 240 polishing abrasive grinding belt | Kitchen appliances |
320# | More than 240 lines of grinding | The NO.2D or NO.2B processing timber 320 polishing abrasive grinding belt | Kitchen appliances |
400# | Close to BA luster | The MO.2B timber 400 polishing wheel polishing method | Building materials, kitchen utensils |
HL (hair lines) |
Polishing line having a long continuous processing | In a suitable size ( usually mostly No. 150-240 grit ) abrasive tape for as long as the hair, having a continuous processing method of polishing line | The most common building materials processing |
NO.6 | NO.4 processing less than the reflection , the extinction | NO.4 processing material used for polishing Tampico brushing | Building materials, decorative |
NO.7 | Highly accurate reflectance mirror processing | No. 600 of the rotary buff with a polishing | Building materials, decorative |
NO.8 | Highest reflectivity mirror finish | Fine particles of abrasive material in order polishing , mirror polishing with a polishing | Building materials, decorative, mirrors |