20 # quality carbon structural steel-Suzhou Ritong Metal materials Co., Ltd

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Home > Cold drawn steel > High quality carbon structural steel

Product Details

Product Name：	20 # 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

On a：	XC35 quality carbon structural steel
Under a：	C15M2 quality carbon structural steel

Product Description

(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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