(1) Higher strength in a high-quality carbon steel.
(2) Mechanical properties of this steel is very good.
(3) the hardeness of this steel could be 42~46HRC by quenching.
(4) due to poor hardenability, general normalized state, high mechanical performance requirements, the use of quenched and tempered.
(5) Moderate in cold plastic deformation, the machinability by annealing and normalizing is better than quenched and tempered.
Size Tolerance:
Length tolerance: +100mm/-0mm
Side length tolerance: +/-2mm
Straightness: max 6mm/m
6.Quality Contation
Both end of each bar must be cut.
Ladle furnanced and vacuum de-gassed
Show heat No. on each bar
Surface condition the surface of the hot rolled square bar shall befree cracks, scar and wrinkles that affect the use of the billets. In case there is the above-mentioned defect, it shall be remove.
The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.
We can supply steel round bar, square steel, the grade such as, SS400B, S20C, S45C, Ck45, SAE1020B, SAE1045B, SAE4140, SAE4150, SAE4340, SAE8620, 42CrMo4, 15B36Cr, S50C, S65C. The diameter is from 20mm to 300mm. It is hot rolled and Black surface. If you need, you can contact with me.
