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SUH409L Stainless Steel Tubing 54*1.5*5800mm Used For Car Exhaust System
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Brand Name:Tisco
Model Number:SUH409L
Certification:ISO
Price:USD 2150/T
Payment Terms:L/C, T/T
Supply Ability:200T/month
Delivery Time:5-8 work days
Company Data
Verified Supplier
Contact Person
Gao Ben
Business Type:
Manufacturer Distributor/Wholesaler Agent Exporter Seller
Officials:
NO.288,YOUYI ROAD ,XI SHAN DISTRICT,WUXI CITY,CHINA
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
SUH409L Stainless Steel Tubing 54*1.5*5800mm Used For Car Exhaust System
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 |
Possible Alternative Grades
The following table gives possible alternative grades of 409 stainless steels:
Table 5 - Possible alternative grades of 409 stainless steels
| Grade | Properties |
| 3CR12 | Easy to weld and good corrosion resistance. Heavy sections are more easily available when compared to 409. |
| 304 | High heat resistance and corrosion resistance. Grade 304 is expensive. |
| 321 | Better heat resistance when compared to 304 or 409. |
| Aluminized steel | Cheaper than grade 409 stainless steel, but less resistant to exhaust gases. |
Corrosion Resistance
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Grade 409 stainless steels have excellent resistance to exhaust gas and atmospheric corrosion, superior to that of 410 martensitic grades with 12% chromium and 3CR12. However, the corrosion resistance is lower than that of grade 430 steels containing 17% chromium. The surface of grade 409 steels is liable to mild corrosion, which limits the usage of steels for decorative purposes.
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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Company Profile
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transportation. , Wuxi become the biggest stainless steel sheet ,plate and coil supply Centers in China. Jiangsu Mittel Steel Industrial Limited was established in 1998 years. as one of the largest stockists and manufacturers of industrial grade Stainless Steel products and derivatives in Wuxi ,We keep a stock of 50000 tons every month, so we can delivery goods in fast time.
Our company supplies cold/hot-rolled stainless steel
sheets,stainless steel coils and stainless steel Plate to many
steel factories from athome and abroad, including Shanxi Taigang
Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS),
Shanghai BAO STEEL, Ningbo Baoxin and steel factories in Taiwan
area, Mainland Chinese and foreign countries and regions.
Our long-term business lines are
201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S
,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B,
BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also
engaged in the long-term supply of homemade & imported medium
and thick plates, galvanized and carbon steel products.
Adhering to the principle of "quality first and customer
foremost",our company will offer long-term service to nationwide
manufacturers of household appliances, elevators, tableware,
ornaments, tanks and machines. We can offer precise frosted
wiredrawing, 8K mirror finishing and skim board oil-abrasion of
various specifications at any time. The precisely-processed
products will meet your requirements for high quality. Our company
is a modern enterprise integrating distribution and storage.
If you are interested in any of our products or would like to
discuss a custom order, please feel free to contact us. We are
looking forward to forming successful business relationships with
new clients around the world in the near future.
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