Cold rolled steel 215 sheet is produced by cold rolling. Cold rolling is a steel plate that further thins the No.1 steel plate to a target thickness at room temperature. Compared with hot-rolled steel sheet, cold-rolled steel sheet is more precise in thickness, smooth and beautiful in surface, and has a variety of superior mechanical properties, especially in processing performance.
| Chemical Composition % | |||||||
| Steel Grade | Steel Grade | C (≤) | Si (≤) | Mn (≤) | P (≤) | S (≤) | Deoxidation Method |
| Q215 | Q215A | 0.15 | 0.35 | 1.2 | 0.045 | 0.050 | Rimmed / Killed |
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Cu(%) |
|---|---|---|---|---|---|---|---|
| 0.09～0.15 | ≤0.30 | 0.25～0.55 | ≤0.045 | ≤0.050 | ≤0.30 | ≤0.30 | ≤0.30 |
Respectively steel grades Q195, Q215, Q235, Q255 and Q275, etc., steel grades by the representative of the yield point of the letter (Q), the yield point value, quality, quality symbols (A, B, C, D) deoxy method symbol sequence composed of four parts. From the chemical composition of stars, low-carbon steel grades Q195, Q215, Q235, Q255 and Q275 grade large carbon content, manganese content, the more stable its plasticity.
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