Best Price for 600 Mm Spiral Steel Pipe - Grinding Media Ball – TOP-METAL

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Chemical components Chemical Components Type Chemical components C Mn Si Cr S P 45# 0.42-0.48 0.50-0.80 0.17-0.37 ≤0.25 ≤0.035 ≤0.035 50Mn 0.48-0.56 0.70-1.00 0.17-0.37 ≤0.25 ≤0.035 ≤0.035 60Mn 0.57-0.65 0.70-1.00 0.17-0.37 ≤0.25 ≤0.035 ≤0.035 65Mn 0.62-0.70 0.90-1.20 0.17-0.37 ≤0.25 ≤0.035 ≤0.035 B2 0.75-0.85 0.70-0.90 0.17-0.37 0.40-0.60 ≤0.030 ≤0.030 B3 0.55-0.65 0.75-0.90 0.20-0.37 0.85-1.20 ≤0.030 ≤0.030 B4 0.58-0.66 0.65-0.80 1.60-1.90 0.70-0.90 ≤0.030 ≤0.030 B...

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Best Price for 600 Mm Spiral Steel Pipe - Grinding Media Ball – TOP-METAL Detail:

Chemical components

Chemical Components
Type	Chemical components
Type	C	Mn	Si	Cr	S	P
45#	0.42-0.48	0.50-0.80	0.17-0.37	≤0.25	≤0.035	≤0.035
50Mn	0.48-0.56	0.70-1.00	0.17-0.37	≤0.25	≤0.035	≤0.035
60Mn	0.57-0.65	0.70-1.00	0.17-0.37	≤0.25	≤0.035	≤0.035
65Mn	0.62-0.70	0.90-1.20	0.17-0.37	≤0.25	≤0.035	≤0.035
B2	0.75-0.85	0.70-0.90	0.17-0.37	0.40-0.60	≤0.030	≤0.030
B3	0.55-0.65	0.75-0.90	0.20-0.37	0.85-1.20	≤0.030	≤0.030
B4	0.58-0.66	0.65-0.80	1.60-1.90	0.70-0.90	≤0.030	≤0.030
B6	0.97-1.03	1.00-1.10	0.20-0.30	0.50-0.60	≤0.025	≤0.025

Mechanical Properties
Material	Hardness(HRC)						Impact	Falling Times
	Φ20-Φ50		Φ60-Φ90		Φ100-Φ150
	Surface	Core	Surface	Core	Surface	Core
45#	≥54	≥36	≥54	≥34	≥52	≥30	≥15	≥22000
50Mn	≥58	≥38	≥58	≥36	≥55	≥32	≥15	≥22000
60Mn	≥60	≥42	≥60	≥40	≥58	≥36	≥15	≥22000
65Mn	≥60	≥42	≥60	≥40	≥58	≥36	≥15	≥22000
B2	≥60	≥60	≥60	≥50	≥60	≥46	≥15	≥22000
B3	≥60	≥60	≥60	≥50	≥60	≥48	≥15	≥22000
B4	≥60	≥60	≥60	≥55	≥60	≥52	≥15	≥22000
B6	≥60	≥60	≥60	≥59	≥60	≥55	≥15	≥22000