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The difference between SUS303, SUS303F and SUS303CU stainless steel
Speaking of SUS303 stainless steel, SUS303F stainless steel and SUS303CU stainless steel, in fact many customers did not notice that there are so many subdivisions of SUS303 stainless steel when purchasing, and they often only know about it after being reminded by our customer service. So, what are the differences and connections between these three?
First, let's compare the chemical compositions of the three:
|
Material |
C |
SI |
MN |
P |
S |
NI |
CR |
MO |
CU |
|
SUS303 |
≤0.15 |
≤1.00 |
≤2.00 |
≤0.02 |
≥0.15 |
8.0-10.0 |
17.0-19.0 |
|
|
|
SUS303F |
≤0.15 |
≤1.00 |
≤2.00 |
≤0.02 |
≥0.15 |
8.0-10.0 |
17.0-19.0 |
≤0.60 |
|
|
SUS303CU |
≤0.15 |
≤1.00 |
≤3.00 |
≤0.02 |
≥0.15 |
8.0-10.0 |
17.0-19.0 |
|
1.5-3.5 |
From the table above, we can see the difference in content between the three. First of all, SUS303F stainless steel has a small amount of molybdenum added compared to SUS303 stainless steel. As we all know, molybdenum can improve the corrosion resistance of steel, which is good for Some components that work in special circumstances can be extremely helpful.
Next, let's take a look at the difference between SUS303 stainless steel and SUS303CU stainless steel. In fact, it can be seen from the grades that the main difference between the two is the CU content. So what is the role of the copper element in SUS303CU. In fact, the copper element can continue to improve the turning performance of SUS303 stainless steel. For some products that require deep drilling and high turning performance, SUS303CU stainless steel is extremely valuable. Considering the market demand, most of our inventory is SUS303CU stainless steel. . At the same time, everyone should pay attention to the fact that the MN content of SUS303CU stainless steel is relatively high, so if the customer requires that it be made without copper, SUS303CU must not be used instead.
