Tantalum & Niobium Products_ATTL Advanced Materials Co., Ltd.

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Tantalum & Alloys Niobium & Alloys

Tantalum & Alloys

Material Property:

Tantalum and tantalum alloy (e.g., Ta, Ta - 10-2.5 - W - 40 W, Ta Nb, etc.) pipes have high melting point, good corrosion resistance and good performance in cold machining.

Application:

Pipes are widely adopted in chemical industry, high technology and atomic energy industry, mainly used in reaction container, pipe, condenser, bayonet heater, spiral coil, U tube, thermocouple protection tube, the liquid metal container and its pipes, etc, in chemical process.(executive standard: ASTMB521-98).

Rods are widely used in aviation and aerospace industry, high –temperature technology, atomic energy industry and chemical industry, mainly used to make supersonic aircraft, rocket, the spacecraft components of the combustion chamber, high –temperature-resistance furnace, and some spare parts with corrosion resistance for resisting nitric acid, sulfuric acid,and hydrochloric acid etc.(executive standard: ASTMB365-98).

Product Specification:

Tantalum and Tantalum alloy tubes

1. Chemical Compositions

Element	RO5200	RO5400	RO5252	RO5255	RO5240
Element	%，no more than(max.)
C	0.0100	0.010	0.010	0.010	0.010
N	0.0100	0.010	0.0100	0.010	0.010
H	0.0015	0.0015	0.0015	0.0015	0.0015
O	0.0150	0.030	0.0150	0.015	0.020
Nb	0.1000	0.10	0.5000	0.10	35.0~42.0
Mo	0.0200	0.020	0.0200	0.020	0.020
W	0.0500	0.050	2.0~3.5	9.0~11.0	0.050
Ti	0.0100	0.010	0.0100	0.010	0.010
Si	0.0050	0.005	0.0050	0.005	0.005
Fe	0.0100	0.010	0.0100	0.010	0.010
Ni	0.0100	0.010	0.0100	0.010	0.010
Ta	Balance	Balance	Balance	Balance	Balance

Notes: The chemicalslements report is that of casting ingot Customized.

2.Mechanical Property

Type	Tensile strength σb，psi (MPa),≥	Yielding strength， σ0.2,psi (MPa),≥	Ductility δ,％, ≥
RO5200/RO5400	30000(207)	20000(138)	25
RO5252	40000(276)	28000(193)	20
RO5255	70000(481)	60000(414)	15
RO5240	40000(276)	28000(193)	20

3．Specification and Tolerance

Diameter in.(mm)	Tolerance of inner/outer diameter in.(mm),±	Tolerance of the wall ％,±
＜1(25.4)	0.004(0.102)	10
1~1.5(25.4~38.1)	0.005(0.127)	10
1.5~2(38.1~50.8)	0.006(0.152)	10
2~2.5(50.8~63.5)	0.007(0.178)	10
2.5~3.5(63.5~88.9)	0.010(0.254)	10

4．Bending degree

Length, ft(m)	maximum bending degree in.(mm)
＞3～6(0.91～1.83)	1/8(3.2)
＞6～8(1.83～2.44)	3/16(4.8)
＞8～10(2.44～3.05)	1/4(6.4)
＞10(3.05)	1/4in./10ft.(2.1mm/m)

5．Other property to be test
If you have specific requirements, you can take pressure testing of NDT test, flaring performance testing of seamless pipe, and reverse flattening performance testing of welded pipes.

--Tantalum and Tantalum bar, wire--

1．Chemical Compositions

Element	RO5200	RO5400	RO5255	RO5252	RO5240
Element	％wt.，no more than (Max.)
C	0.010	0.010	0.010	0.010	0.010
O	0.015	0.03	0.015	0.015	0.020
N	0.010	0.010	0.010	0.010	0.010
H	0.0015	0.0015	0.0015	0.0015	0.0015
Nb	0.10	0.10	0.10	0.50	35.0～42.0
Fe	0.010	0.010	0.010	0.010	0.010
Ti	0.010	0.010	0.010	0.010	0.010
W	0.050	0.050	9.0～11.0	2.0～3.5	0.050
Mo	0.020	0.020	0.020	0.020	0.020
Si	0.005	0.005	0.005	0.005	0.005
Ni	0.010	0.010	0.010	0.010	0.010

The final chemical components (only tested when it is specified in the contract)

Element	RO5200	RO5400	RO5255	RO5252	RO5240
Element	wt％.，no more than (Max.)
O	0.025	0.035	0.025	0.025	0.025
N	0.010	0.010	0.010	0.010	0.010
H	0.0015	0.0015	0.0015	0.0015	0.0015
C	0.020	0.020	0.020	0.020	0.020

2．Mechanical Property

Type	Tensile strength σb，psi (MPa),≥	Bending strength σ0.2,psi (MPa),≥	Tensile strength and elongation(25.4mm) δ,％, ≥
Rod diameter 0.125 in(3.18mm) ~ 2.5 in(63.5mm)
RO5200/RO5400	25000(172)	15000(103)	25
RO5252	40000(276)	28000(193)	20
RO5255	70000(482)	55000(379)	20
RO5240	35000(244)	15000(103)	25
Wire, Diameter, in(mm)		Bending strength σb，psi (MPa),≥	Tensile strength and elongation≥，%
RO5200/RO5400	0.010(0.254)～0.0149(0.379)	35000(241)	10
	0.015(0.381)～0.0249(0.633)	35000(241)	15
	0.025(0.635)～0.124(3.14)	30000（207)	20
RO5252	0.010(0.254)～0.0149(0.379)	40000(276)	5
	0.015(0.381)～0.0249(0.633)	40000(276)	10
	0.025(0.635)～0.124(3.14)	40000(276)	15
RO5255	0.010(0.254)～0.0149(0.379)	70000(482)	5
	0.015(0.381)～0.0249(0.633)	70000(482)	10
	0.025(0.635)～0.124(3.14)	70000(482)	15
RO5240	0.010(0.254)～0.0149(0.379)	35000(244)	10
	0.015(0.381)～0.0249(0.633)	35000(244)	15
	0.025(0.635)～0.124(3.14)	35000(244)	20

Note: Diameter ≤0.05 inch (1.27 mm), the range is 10 inches (254 mm),diameter > 0.05 inch (1.27 mm), the distance is 1 inch (25.4 mm) or 2 inches (50.8 mm)

3．Specifications & Tolerances

Diameter， in(mm)	Tolerance，±in(mm)
0.010～0.020 excl(0.254～0.508)	0.0005(0.013)
0.020～0.030 excl(0.508～0.762)	0.00075(0.019)
0.030～0.060 excl(0.762～1.524)	0.001(0.025)
0.060～0.090 excl(1.524～2.286)	0.0015(0.038)
0.090～0.125 excl(2.286～3.175)	0.002(0.051)
0.125～0.187 excl(3.175～4.750)	0.003(0.076)
0.187～0.375 excl(4.750～9.525)	0.004(0.102)
0.375～0.500 excl(9.525～12.70)	0.005(0.127)
0.500～0.625 excl(12.70～15.88)	0.007(0.178)
0.625～0.750 excl(15.88～19.05)	0.008(0.203)
0.750～1.000 excl(19.05～25.40)	0.010(0.254)
1.000～1.500 excl(25.40～38.10)	0.015(0.381)
1.500～2.000 excl(38.10～50.80)	0.020(0.508)
2.000～2.500 excl(50.80～63.50)	0.030(0.762)