In addition, Cold coil shapes and materials also includes some relatively few varieties, such as cold-rolled box plate, cold-rolled hard plate, cold-rolled sheet, etc. These two categories are mainly named because of their different Cold coil shapes and materials shapes and materials.
Chemical composition % of the ladle analysis of grade SC2 Cold coil shapes and materials
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Al(%) | Ti(%) |
| Max 0.01 | Max 0.03 | Max 0.03 | 0.02 | 0.02 | — | Max 0.20 |
STEEL GRADE | Tensile Strength | Yield Strength max | Elongation min. | r | n | |||
<0.70 | 0.70-<1.0 | 1.0-<1.6 | >=1.6 | min | min | |||
SC2 | 270-330 | 180 | 38 | 39 | 40 | 41 | 1.9 | 0.20 |
When two different metals are in contact and coupled with water and oxygen, sacrifice or current protection occurs. Zinc preferentially corrodes iron in steel.
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