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JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
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City:wuxi
Province/State:jiangsu
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Contact Person:MrGao Ben
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409L Stainless Steel Plate Stainless 409 ,Grade UNS40900 SUH409L Sheet 2D Finished
Brand Name :TISCO BAO STEEL ZPSS LISCO
Model Number :409L
Certification :SGS ISO MTC
Place of Origin :China Jiangsu
MOQ :200KGS
Price :1.65 USD/KG
Payment Terms :L/C, T/T
Supply Ability :300000KGS
Delivery Time :10 Days
Packaging Details :Wodden Pallet
Material :SUH409L
Color :2B /2D NO.1 or customized
Size :Customized Size,as your request
Feature :Corrosion Resistance High Temperature
Thickness :1-3mm,3-10mm or Customized
Width :1000-1500mm
Length :2000-6000mm
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409L Stainless Steel Plate Stainless 409 ,Grade UNS40900 SUH409L Sheet 2D Finished
409 STAINLESS STEEL
If you desire a stainless steel whose mechanical properties highly outshine its physical appearance than 409 stainless steel is your perfect match. 409 Stainless is ideally used in scenarios where a need for oxidation or even corrosion protection is wanted. As a titanium stabilized ferritic stainless steel, 409 is most commonly used in automotive exhaust systems where the environment can be quite taxing on the lifetime of the steel.
Chemical Formula
Fe, <0.08% C, 10.5-11.75% Cr, <0.5% Ni, <1.0% Mn, <1.0% Si, <0.045% P, <0.03% S, 6x%C-0.75% Ti
Inventory
409 Stainless Steel Plate
Common Trade Names
409 Stainless, 409 Stainless Steel
Features
Although susceptible to rust formation, making this grade of stainless steel somewhat undesirable for decorative purposes, 409 is extremely resistant to various forms of gas corrosion.
- It is suggested prior to welding, the steel is pre-heated to 150-260C and also suggested post-weld annealing at 760-815C.
Applications
409 is the perfect grade stainless steel to be used in automotive applications where visual appeal is not a top priority. For this reason and for its durability to gas corrosion, 409 is most commonly used in truck exhaust systems, agricultural equipment, and heat and gas turbine exhaust silencers.
Available Stock Sizes
See specific product page for unique sizes. Here at Atlantic Stainless no inquiry is too large or too small. Feel free to contact us today for a quote on any of your custom size orders.
General Properties
Alloy 409 is a general purpose, chromium, titanium stabilized, ferritic stainless steel whose primary application is automotive exhaust systems. It contains 11% chromium which is the minimum amount for the formation of the passive surface film which gives stainless steels their corrosion resistance. It combines good elevated temperature corrosion resistance with medium strength, good formability, and overall cost. Alloy 409 resists corrosion strongly compared to carbon steel and is used as an alternative to carbon steel in mildly challenging environments where its high resistance to corrosion and high temperature oxidation gives an advantage. It is commonly used in applications where appearance is a secondary quality to mechanical properties and corrosion resistance.
Applications:
Although Alloy 409 is designed principally for the automotive exhaust industry, it has been successfully used in other industrial applications as well. Some examples of applications that call for Alloy 409 include:
- Automotive exhaust systems
- Catalytic converters
- Mufflers
- Tailpipes
- Farm equipment
- Structural support and hangers
- Transformer cases
- Furnace components
- Heat exchanger tubing
Standards:
- ASTM/ASME: UNS S40900
- EURONORM: FeMi35Cr20Cu4Mo2
- DIN: 2.4660
Corrosion Resistance:
- Resists atmospheric and exhaust gas corrosion
- In most atmospheres a light surface rust will form which inhibits further corrosion but makes the surface less appealing
Heat Resistance
- Generally classified as resistant to scaling in intermittent service up to 1499oF (815oC ) and up to 1247oF (675oC) in continuous service
Weldability
- Readily weldable
- Pre-heat of 302 to 500oF (150 to 260oC) is recommended
- Post-weld annealing at 1400 to 1499oF improved weld ductility
- Post-weld annealing is not required when welding thin sections
- Automotive exhaust tubing is typically welded without filler metal
Chemical Properties:
| C | Mn | Si | P | S | Cr | Ni | Ti | |
|---|---|---|---|---|---|---|---|---|
| 409 | max:0.08 | max:1.0 | max:1.0 | max:0.045 | max: 0.045 | min: 10.5 max: 11.75 | max: 0.5 | min: 0.48 max: 0.75 |
Mechanical Properties:
| Grade | Tensile Strength MPa (min) | Yield Strength 0.2% MPa(min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 409 | 380 | 207 | 20 | 207 | 95 |
Physical Properties:
| Density lbm/in3 | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in x 10-6) | Modulus of Elasticity (psi x 106 | Coefficient of Thermal Expansion (in/in)/ °F x 10-6 | Specific Heat (BTU/lb/ °F) | Melting Range (°F) |
|---|---|---|---|---|---|---|
| at 68°F: 0.280 | 9.4 at 212°F | 28.3 at 68°F | 29 | 5.84 at 32 – 212°F | 0.114 at 68°F to 212°F | 2500 to 2590 |
| 12.4 at 932 °F | 39.4 at 752°F | 6.60 at 32 – 1000°F | ||||
| 49.6 at 1652 °F | 6.86 at 32 – 1500°F |
409L Stainless Steel Plate Stainless 409 ,Grade UNS40900 SUH409L Sheet 2D Finished
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