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Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemis 35 ≤ 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 0.70.705 B2 0.70-0.75 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 ...

Cov nqe lus them nqi:L / C, D / A, D / P, T / T

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Chemical Cheebtsam

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

Mechanical Properties
Khoom siv	Hardness (HRC)						Kev cuam tshuam	Caij nplooj zeeg
	Φ20-Φ50		Φ60-Φ90		Φ100-Φ150
	Nto	Core	Nto	Core	Nto	Core
45 #	≥54	≥36	≥54	≥34	≥52	≥30	≥15	≥22000
50 Mn	≥58	≥38	≥58	≥36	≥55	≥32	≥15	≥22000
60 Mn	≥60	≥42	≥60	≥40	≥58	≥36	≥15	≥22000
65mn ua	≥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