SS439/409 Steel Plate Sheet
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of ss439/409 steel plate sheet in China. If you're going to wholesale high quality ss439/409 steel plate sheet made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Type 439 is an 18% chromium, titanium stabilized ferritic stainless steel with corrosion resistance similar to that of 304/304L stainless steel. This grade may be used in the annealed, cold formed or as-welded condition in applications where other stainless steels such as Type 304/304L and Type 430 are used. Type 439 has good weldability due to titanium stabilization and has excellent resistance to stress corrosion cracking. Type 439 outperforms Type 409 in both oxidation and corrosion resistance and typical applications include tubular manifolds and exhaust system components.
The chemical composition of 439 stainless steel plays a vital role in determining its performance and applications. This grade of stainless steel is classified as a ferritic alloy, which means it contains high levels of chromium and small amounts of carbon.
The main elements in the ingredients are chromium (17-19%), manganese (1%), silicon (1%), titanium (0.15-0.60%), and nickel (less than 0.50%). The high chromium content provides excellent corrosion resistance, making it suitable for use in a variety of environments such as automotive exhaust systems.
Additionally, the low carbon content enhances weldability and prevents intergranular corrosion – a common problem with other types of stainless steel.
| Element | 439 |
| Carbon | 0.030 |
| Chromium | 17.0-19.0 |
| Nickel | 0.50 |
| Manganese | 1.00 |
| Silicon | 1.00 |
| Nitrogen | 0.030 |
| Phosphorus | 0.040 |
| Sulfur | 0.030 |
| Aluminum |
0.15 |
| Titanium |
0.20 +4(C+N) min |
* Maximum, unless range is indicated
FAQ
Q: Can I get samples before order ?
A: Yes, of course.We can produce by your samples or technical drawings ;
Q: Can I go to your factory to visit?
A: Of course, we welcome customers from all over the world to visit our factory ;
Q: How can I get a quotation from you ?
A: You can leave us message or send us by email , and we will reply every message and email in time or we may talk on line ;
Q: What product information do I need to provide ?
A: You need to provide the material, thickness, width, length or any other detailes and the number of tons you want to purchase ;
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