Niobium Plate / Sheet / Foil / Target

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Niobium Plate / Sheet / Foil / Target

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Table 1 Chemical Requirements (Ingot)

Grade	Chief	Impurity Maximum, %
Grade	Nb	C	N	O	H	Zr	Ta	Fe	Si	W	Ni	Mo	Hf	Ti
RO4200	Remainder	0.010	0.010	0.015	0.0015	0.020	0.100	0.005	0.005	0.030	0.005	0.010	0.020	0.020
Nb-1	≥99.9	0.010	0.010	0.015	0.0015	0.005	0.050	0.005	0.005	0.005	0.002	0.005	0.005	0.002
Standard: ASTM B393-09, Special requirements to be agreed on by the supplier and buyer

Table 2 Niobium Plate, Sheet, Foil

	Thickness (mm)	Width (mm)	Length (mm)
Foil	0.1∽0.2	30∽100	100∽800
Sheet	0.2∽0.5	30∽300	300∽2500
Plate	0.5∽10	50∽600	600∽2500
Special requirements to be agreed on by the supplier and buyer

Table 3 Mechanical Properities

Grade	Tensile Strength ≥MPa	Yield Strength ≥MPa	Elongation, ≥ %
			≥0.01	<0.01
RO4200	125	73	20	15
Standard: ASTM B393-09, Special requirements to be agreed on by the supplier and buyer

Table 4 Tolerance

Thickness mm	Thickness tolerance, ± mm		Width tolerance, mm		Length tolerancer, mm
Thickness mm	<152	152∽609.6	<152	152∽609.6	≤304.8		>304.8
0.10∽1.0	0.01∽0.05	0.05∽0.10	0.50∽0	1∽0	+1	0	+2	0
1.00∽5.0	0.05∽0.10	0.10∽0.20	0.40∽0	1∽0	+1	0	+2	0
5.0∽10.0	0.10∽0.20	0.20∽0.50	0.40∽0	1∽0	+1	0	+2	0
10.0∽15.0	0.20∽0.50	0.20∽0.50	0.40∽0	1∽0	+1	0	+2	0
Standard: ASTM B393-09, Special requirements to be agreed on by the supplier and buyer

Table 5 Niobium Target

Grade: RO4200 Purity: ≥ 99.95% Standard: ASTM B393-05 Circular target: Diameter (25∽400) mm Thickness (3∽20) mm Rectangular target: Thickness (1∽20) mm Width (10∽600) mm Length (600∽1200) mm	Recrystallization: ≥95% Surface finish: Ra0.8∽1.6μm Flatness: 0.1mm or 0.10% Maximize the value Diameter tolerance: ± 0.254mm Thickness tolerance: ± 0.05∽± 0.254mm Width(Length)tolerance: ± 0.254∽± 1mm

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