Abrasives_Henan Sinjiasheng Import and Export Trading Co., Ltd

Brown aluminum oxide is electrically fused in an arc furnace from a mixture of bauxite at high temperature. It has brown color, high hardness and great toughness. The abrasive tools made of brown aluminum oxide are suitable for grinding carbon steel, normal alloy steel, malleable cast iron and hard bronze. It used for refractory aluminum oxide lining mixture, pouring materials castable, etc.

Typical value of physical chemical performance index

Type	Grit	Chemical composition (%)					CAL.TEM. ℃	Magnetic % contens≤	Range of buld density（g/cm³）
Type	Grit	AL₂O₃	SiO₂	TiO₂	Fe₂O₃	CaO	CAL.TEM. ℃	Magnetic % contens≤	Range of buld density（g/cm³）
A	F46	95.72	0.92	2.52	0.06	0.28	1050-1350	0.009	1.85
	F120	95.30	1.12	2.74	0.07	0.27	1050-1350	0.008	1.62
	F180	94.70	1.27	2.93	0.15	0.39	1050-1350	0.006	1.54
	F360	92.42	1.75	3.85	0.62	0.45	1050-1350	0.022	1.29
A-B	F46	95.56	1.12	2.39	0.06	0.30	-	0.006	1.85
	F120	95.12	1.22	2.62	0.08	0.32	-	0.009	1.61
	F180	94.32	1.30	2.91	0.16	0.30	-	0.010	1.54
	F360	91.47	1.78	4.36	0.65	0.50	-	0.018	1.22
A-P1	P40	95.57	1.08	2.45	0.06	0.28	-	0.007	1.72
	P120	94.85	1.17	2.76	0.05	0.29	-	0.009	1.58
	P180	93.89	1.37	3.40	0.15	0.32	-	0.006	1.52
	P600	91.82	1.69	4.67	0.52	0.49		0.008	1.25
A-P2	P40	93.27	1.32	3.20	0.19	0.30	-	0.007	1.71
	P120	92.85	1.27	3.21	0.21	0.37	-	0.008	1.56
	P180	91.65	1.42	3.72	0.27	0.42	-	0.007	1.50
	P600	90.80	1.77	4.62	0.72	0.56	-	0.006	1.21

Chart for grit size and chemical component of china GB/T 2478-1995

Type & Grit		Chemical composition (%)
Type & Grit		Al₂O₃	TiO₂	CaO
A A-P1	F4-F80(P80)	95.00-97.50	1.50-3.80	0.45
	F90-F150 (P100-P150)	94.00-97.50
	F180-F220 (P180-P220)	93.00-97.50
	F220(P220)	≥92.00
A-B A-P2	F4-F80 (P8-P80)	≥93.00	1.50-4.20	-
	F90-F220 (P100-P220)	≥91.00	1.50-4.20	-
	F220(P220)	≥90.00	≤4.50	-
A-S	F16-F220	≥92.00	≤4.20	-

Chart for grit size and magnetic contents of china GB/T 2478-1996

Grit	Magnetic contents ≤
Grit	A,A-P1	A-B	A-P2	A-S
F8,P8	0.052 0	0.080 0	0.085 0	-
F10,P10	0.050 0	0.078 0	0.083 0	-
F12,P12	0.048 0	0.076 0	0.081 0	-
F14,P14	0.046 0	0.074 0	0.079 0	-
F16,P16	0.044 0	0.072 0	0.077 0	0.086 0
F20,	0.042 0	0.070 0	0.075 0	0.083 0
F22,P20	0.040 0	0.068 0	0.073 0	-
F24,P24	0.038 0	0.066 0	0.071 0	0.080 0
F30,P30	0.036 0	0.064 0	0.069 0	0.077 0
F36,P36	0.034 0	0.062 0	0.067 0	0.074 0
F40,	0.032 0	0.060 0	0.065 0	-
F46,P40	0.030 0	0.058 0	0.063 0	0.071 0
F54,P50	0.028 0	0.056 0	0.061 0	0.068 0
F60,P60	0.026 0	0.054 0	0.059 0	0.065 0
F70,P70	0.025 0	0.052 0	0.057 0	0.062 0
F80,P80	0.024 0	0.050 0	0.055 0	0.059 0
F90,P100	0.023 0	0.048 0	0.053 0	0.056 0
F100	0.022 0	0.046 0	0.051 0	0.054 0
F120,P120	0.021 0	0.045 0	0.050 0	0.053 0
F150,P150	0.018 0	0.044 0	0.049 0	0.052 0
F180,P180	0.018 0	0.044 0	0.049 0	0.052 0
F220,P220	0.018 0	0.044 0	0.049 0	0.052 0

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Brown Aluminum Oxide(A)