pecial Cold Heading Steel Wire Coil

Specifications

Specifications
Cold Heading Steel Wire Rod
Dia 6.5-20mm
Grade ML40Cr ML08AL, SWRCH22A, SWRCH35K

Cold Heading Steel rod 
As the main raw material needed by the standard pieces manufacture industries, the cold heading steel, standard executed is GB/T6478—2001 and G3507-1:2005, is used to make work pieces in every specification such as bolt, screw, nut etc. Because of the large deformation in the process of cold heading, the steel grade is required to have less content of sulfur and phosphor, less impurity, excellent machining and mechanical performances and accurate rolling tolerances. WFSTEEL already could produce the cold heading steel wire coil for cold heading in grade of ML08,ML35 and ML40Cr with diameters range of φ5.5mm~φ16mm.

Grade	Dia(mm)	Standard	Chemical Composition %
			C	Si	Mn	P	S	Cr	Alt
ML08AL	5.5,6.5,8,10,12,14, 16	GB/T6478-2001	0.05-0.10	≤0.10	0.30-0.60	≤0.035	≤0.035		≥0.02
ML40Cr			0.38-0.45	≤0.30	0.60-0.90	≤0.035	≤0.035	0.90-1.20
SWRCH22A		G3504-1:2005	0.18-0.23	0.1	0.70-1.00	≤0.030	≤0.035		≥0.02
SWRCH35K			0.32-0.38	0.10-0.35	0.60-0.90	≤0.030	≤0.035
SWRCH45K			0.42-0.48	0.10-0.35	0.60-0.90	≤0.030	≤0.035