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409L SS Sheet / 409L Stainless Steel Plate ASTM A240 Standard Thickness 0.4 - 3.0mm
| Place of Origin | China |
|---|---|
| Brand Name | TISCO |
| Certification | ISO |
| Model Number | 409L |
| Minimum Order Quantity | 500 kgs |
| Price | 1410-1620USD/Ton |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | T/T, Western Union, L/C |
| Supply Ability | 10 Ton per week |
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xProduct Details
| Products | Stainless Steel Sheet | Grade | Stainless Steel 409L |
|---|---|---|---|
| Standard | ASTM EN JIS GB | Size | 1219*2438mm |
| Thickness | 0.5 - 3.0mm | Type | Cold Rolled |
| Service | Cutting, Surface Treatment | Application | Auto Exhaust Pipe |
| Packing | Wooden Pallets | ||
| Highlight | rolled sheet metal,400 series stainless plate,thin ss plate |
||
Product Description
409L SS Sheet / 409L Stainless Steel Plate ASTM A240 Standard Thickness 0.4 - 3.0mm
Products Specification
| Products Name | 409L Stainless Steel Sheet |
| Standard | ASTM EN JIS GB BIS |
| Thickness | 0.4mm 0.5mm 0.6mm 0.8mm 1.0mm 1.2mm 1.5mm 2.0mm 2.5mm 3.0mm |
| Surface | 2B 2D or process other surface as request |
| Standard Size | 1219*2438mm 1000*2000mm |
| Service | Slit Cutting, bending , surface treatment |
| Other Grade | 200 Series: 201 202 |
| 300 Series: 301 304 304L 309S 310S 316L 316Ti 317l 321 329 347 | |
| 400 Series: 409L 410S 416 420 431 436L 439 441 443 444 446 | |
| Special Grade: 254SMO 904L 2205 2507 253MA Nickel Alloy | |
| MOQ | 500 kgs |
| Packing | Wooden Pallets and waterproof paper |
Introduction
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.
Key Properties
The properties given below relate to annealed tubing of ASTM A268. The specified properties may not be similar to other products such as bar and coil.
Composition
The typical chemical compositional ranges of grade 409 stainless steels are given below:
Table 1 - Composition ranges of grade 409 stainless steels
| Grade | C | Mn | Si | P | S | Cr | Ni | Ti | |
| 409 |
min. max. |
- 0.08 |
- 1.00 |
- 1.00 |
- 0.045 |
- 0.045 |
10.5 11.75 |
- 0.5 |
6x C 0.75 |
Mechanical Properties
The table below provides the mechanical properties of grade 409 stainless steels:
Table 2 - Mechanical properties of grade 409 stainless steels
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 409 | 450 | 240 | 25 | 75 | 131 |
Physical Properties
The physical properties of annealed grade 409 stainless steels are tabulated below:
Table 3 - Physical properties of annealed grade 409 stainless steels
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 409 | 7800 | 200 | 11.0 | 11.7 | 12.4 | 25.8 | 27.5 | 460 | 600 |
Grade Specification Comparison
Table 4 provides approximate grade comparisons of 409 stainless steels:
Table 4 - Grade specifications for 409 grade stainless steel
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 409 | S40900 | 409S19 | - | 1.4512 | X6CrTi12 | - | SUH 409 |
Heat Resistance
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.
Heat Treatment
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.
Welding
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.
Applications
The typical applications of grade 409 stainless steels are listed below:
- Automotive exhaust tubing
- Catalytic converter systems
- Mufflers
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