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SUS321
● Characteristics and scope of application:
Ti is added to improve intergranular corrosion resistance and is not recommended for decorative parts.
● Corrosion resistance:
SUS321, SUS347 and SUS348 are titanium, niobium plus tantalum, niobium stabilized stainless steel, suitable for use at high temperature welding components. 348 is a stainless steel suitable for the nuclear power industry, which has a certain limit on the amount of tantalum and drill.
● Chemical composition:
Carbon C: ≤0.08
Si: ≤1.00
Mn: ≤2.00
Sulfur S: ≤0.030
P: ≤0.035 Chromium Cr: 17.00 ~ 19.00
Nickel: 9.00 ~ 12.00
Titanium Ti: ≥5×C%
● Mechanical properties:
Section shrinkage (%) : ≥50
Hardness: ≤187HB; ≤90HRB; ≤200HV
● Heat treatment specifications and metallographic structure:
Heat treatment specification: 1) solution 920 ~ 1150℃ fast cooling; 2) According to the requirements of the demander, it can be stabilized, and the heat treatment temperature is 850 ~ 930℃, but it must be indicated in the contract.
Metallographic structure: The structure is characterized by Austenitic type.
● Delivery status: generally delivered in heat treatment state, and the type of heat treatment is indicated in the contract; If not indicated, delivery in non-heat treatment condition.
1. The company has established long-term and stable cooperative relations with many well-known brand steel mills at home and abroad, all of which provide proof of original material books
2. Wholesale and retail, price concessions, high quality (large quantity is preferred), timely delivery
3. The company has several large vertical band saws, as well as steel plate finishing machinery,
4. Is a set of imported high-quality mold steel sales wholesale and machining services in one of the large enterprises
5. Wide channels, sufficient supply, business scope all over the country, can meet the needs of customers in various regions
Sincerely welcome new and old customers from all walks of life friends at any time to inquire and negotiate business, our high-quality products, reasonable prices, will certainly meet your requirements!
Welcome new and old customers to inquire and negotiate.
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