Effect of Cu on Corrosion Resistance of 05CuPCrNi Weathering Steel
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Cu and P are added to 05CuPCrNi weathering steel mainly to improve the corrosion resistance and solid solution strengthening of ferrite.
| 1. Cu in 05CuPCrNi weathering steel is to improve the atmospheric corrosion resistance. * The main, * commonly used alloying element. Cu is added to the steel to form a thin layer of dense copper oxide between the corrosion layer of steel and the copper rich layer. , thereby slowing down and inhibiting the medium from continuing to corrode into the interior of the steel sheet. |
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2. When the Cu content in 05CuPCrNi weathering steel is more than 0.15%, the resistance to atmospheric corrosion is slow. P is an effective element for improving atmospheric corrosion resistance in alloying elements. It is an anode depolarizer. In the electrolyte solution, it can accelerate the uniform dissolution of steel and the oxidation rate of iron, and help to form a uniform rust layer on the steel surface. And the boundary with the inner rust layer is obvious, thereby improving the corrosion performance of the steel. |
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3. The Cu control in 05CuPCrNi weathering steel is controlled at 0.25%-0.35%, and the P-press limit is controlled at 0.07%-0.10%, which can meet the requirements of atmospheric corrosion resistance. |
| 05CuPCiNi Chemical composition | |||||
|
Grade |
The Element Max (%) |
||||
|
|
C |
Si |
Mn |
P |
S |
|
≤0.090 |
0.25-0.50 |
0.20-0.50 |
0.06-0.12 |
≤0.020 |
|
|
Cr |
Cu |
Ni |
RE |
|
|
|
0.30-1.25 |
0.25-0.50 |
0.12-0.65 |
|
|
|
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
Grade |
Thickness |
Yield |
Tensile |
Elongation |
Delivery state |
|
05CuPCiNi |
mm |
Min Mpa |
Mpa |
Min % |
|
|
≤4 |
310 |
440 |
26 |
Cold rolling |
We have professional and strict requirements in one link, and try our best to be perfect. Guarantee the quality of our 05CuPCrNi weathering steel. We do things with *sincere attitude and *professional technology. Katalor is always on hand to visit new and old customers.05CuPCrNi weathering steel as our main steel, we can supply 05CuPCrNi weathering steel with huge advantage.welcome to send inquiry of 05CuPCrNi weathering steel to katalor.
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