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| Product Name： |
CC20 quality carbon structural steel |
| Product Type： |
Light round ∮4-∮100, hexagon bar, flat, square steel non-standard can be customized according to customer drawings customized |
| Product Brand： |
Hangzhou Iron and Steel, Sha Steel, Baoshan Iron and Steel
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| On a： |
C21 quality carbon structural steel |
| Under a： |
C20 quality carbon structural steel |
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Mechanical Properties
(A) phase transition temperature (approximate) Ac1 = 735 ℃, Ac3 = 855 ℃, Ar3 = 835 ℃, Ar1 = 680 ℃
(2) normalizing regulate temperature 920 ~ 950 ℃, cooled baked. Hardness of 131 ~ 156HBS.
(3) Cold Blank softening temperature specification 700 ~ 720 ℃, holding time is 8 ~ 15h, and then to 50 ~ 100 ℃ / h of cooling rate, with the oven temperature down to ≤550 ~ 600 ℃, cooled baked. |
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