Tantalum Bars and Rods

Louis Metals gladly offers high-performance Tantalum Bars and Rods from our Houston, USA plant. Renowned for superior corrosion protection as well as stability, tantalum is a key material for rigorous chemical, electronic, and medical applications. Our tantalum rods and bars are produced with precision techniques employing advanced manufacturing processes to maintain purity, consistency, and mechanical properties. Our tantalum products are offered in various sizes and grades (such as R05200 and R05400) and conform to ASTM standards and global quality standards. We offer prompt delivery, technical assistance, and sound solutions for high-purity, corrosion-free metal components needed by industries.

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Tantalum Bright Bars

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Tantalum Threaded Bars

What is Tantalum Bars and Rods?

Tantalum Bars and Rods are generally manufactured from high-purity tantalum (≥99.9%), according to ASTM B365 specifications. They are highly ductile, have a high melting point (~3017°C), and excellent corrosion resistance against acids like hydrochloric, nitric, and sulfuric acid. Their mechanical properties are tensile strength of the order of 200–750 MPa (based on grade and condition), high density (~16.6 g/cm³), and good formability. Tantalum is not magnetic and retains its mechanical integrity at high temperatures. These bars and rods are cold-worked or annealed, hence ideal for critical use where chemical resistance and structural integrity are essential.

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Tantalum Bars and Rods Specifications

Specification	ASTM B365, ASME SB365
Tantalum Bar Form	Tantalum Round, Hex, Flat, Half Round, Oval, Rectangular in Black & Bright Finish
Tantalum Round Bar Diameter	0.125″ (3.18mm)~2.5″ (63.5mm)
Length	2-12m
Purity	≥99.95% or 99.99%
Tantalum Round Bar Length	1-12m, Random, Fix & Cut Length or as per clients’ requirement

Chemical Compositions of Tantalum Bars and Rods

Type	Ta	W	Nb
R05200 / R05400	Unalloyed (Pure)	–	–
R05252	97.5 %	2.5 %	–
R05255	90 %	10 %	–
R05240	60 %	–	40 %

Mechanical Properties of Tantalum Bars and Rods

Type	Ultimate Tensile Strength min.psi (Mpa)	Yeild Strength min.psi (Mpa)	Elongation, % (min)
R05200 / R05400	25,000(172)	15,000(103)	25
R05252	40,000(276)	20,000(138)	20
R05255	70,000(482)	55,000(379)	20
R05240	35,000(241)	15,000(103)	25

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Tantalum Bars and Rods Types

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Tantalum Bars and Rods Sizes

3/16” (4.76mm)	25mm	2.1/2” (63.5mm)
¼” (6.35mm)	1” (25.4mm)	2.3/4” (69.85mm)
5/16” (7.94mm)	1.1/8” (28.58mm)	3” (76.2mm)
3/8” (9.53mm)	30mm	3.1/4” (82.55mm)
10mm	1.1/4” (31.75mm)	3.1/2” (88.9mm)
12mm	1.3/8” (34.93mm)	4” (101.6mm)
½” (12.7mm)	1.1/2” (38.1mm)	4.1/2” (114.3mm)
15mm	40mm	5” (127mm)
5/8” (15.88mm)	1.3/4” (44.45mm)	5.1/2” (139.7mm)
¾” (19.05mm)	2” (50.8mm)	6” (152.4mm)
20mm	2.1/8” (53.98mm)	7” (177.8mm)
7/8” (22.23mm)	2.1/4” (57.15mm)	8” (203.2mm)

Tantalum Bars and Rods Weight Chart

Size	Kgs / Foot	Kgs / Mtr	Size	Kgs / Foot	Kgs / Mtr	Size	Kgs / Foot	Kgs / Mtr
3mm	0.017	0.055	20mm	0.753	2.470	3″	10.900	35.762
1/8″	0.019	0.062	22mm	0.908	2.979	3-1/4″	12.800	41.996
5/32″	0.029	0.095	7/8″	0.926	3.038	3-1/2″	14.850	48.772
4mm	0.030	0.098	24mm	1.080	3.543	3-3/4″	17.001	55.780
3/16″	0.043	0.141	25mm	1.180	3.871	4″	19.306	63.340
5mm	0.047	0.154	1″	1.210	3.970	4-1/4″	21.908	72.249
7/32″	0.058	0.190	26mm	1.271	4.170	4-1/2″	24.4487	80.340
6mm	0.068	0.223	27mm	1.368	4.490	4-3/4″	27.366	90.249
1/4″	0.076	0.249	1-1/8″	1.534	5.033	5″	30.461	99.940
7mm	0.091	0.298	30mm	1.691	5.548	5-1/2″	36.690	121.000
5/16″	0.118	0.387	1-1/4″	1.924	6.349	6″	43.860	143.900
8mm	0.120	0.398	32mm	1.894	6.314	6-1/2″	51.093	167.630
9mm	0.152	0.498	1-3/8″	2.303	7.550	7″	59.432	196.000
3/8″	0.170	0.557	35mm	2.390	7.553	7-1/2″	68.226	225.000
10mm	0.189	0.620	36mm	2.438	7.999	8″	77.586	254.55
11mm	0.228	0.748	38mm	2.792	8.903	10″	121.048	397.140
7/16″	0.232	0.761	1-1/2″	2.715	8.951
12mm	0.271	0.889	40mm	3.009	9.872
1/2″	0.303	0.994	1-5/8″	3.200	10.449
13mm	0.318	1.043	1-3/4″	3.712	12.179
14mm	0.368	1.207	45mm	3.807	12.555
9/16″	0.383	1.256	1-7/8″	4.260	13.977
15mm	0.424	1.391	48mm	4.330	14.205
5/8″	0.473	1.551	50mm	4.698	15.414
16mm	0.481	1.578	2″	4.848	15.906
17mm	0.543	1.791	2-1/8″	5.475	17.963
11/16″	0.573	1.880	2-1/4″	6.135	20.128
18mm	0.610	2.001	60mm	6.768	22.205
3/4″	0.682	2.237	2-3/8″	6.838	22.435
			2-1/2″	7.576	24.856
			2-5/8″	8.354	27.409
			2-3/4″	9.169	30.083

Frequently Asked Questions (FAQ)

Are Tantalum Bars And Rods Corrosion-resistant?

Yes, tantalum bars and rods are highly corrosion-resistant, especially to acids, alkalis, and high temperatures, making them ideal for harsh environments like chemical processing and aerospace applications.

What Is The Difference Between Annealed And Non-annealed Tantalum Bars And Rods?

Annealed tantalum bars and rods are heat-treated for improved ductility and softness, while non-annealed ones are harder and more brittle, retaining their as-cast properties. Annealed versions are easier to shape.

How Is The Surface Finish Of Tantalum Bars And Rods?

The surface finish of tantalum bars and rods is typically smooth, with a polished or matte appearance, depending on the manufacturing process. It can be further refined for specific applications, such as high-precision or cosmetic uses.

Tantalum Bars and Rods Uses

Tantalum Bars and Rods have extensive applications in industries where superlative corrosion resistance is of utmost importance. In chemical processing, they are perfectly suited for linings of heat exchangers, evaporators, and reactors exposed to strong acids. Tantalum is vital in the electronics sector for capacitors, anodes, and sputtering targets. Tantalum rods are used by the medical industry in implants, surgical instruments, and orthopedic implants because of its biocompatibility and non-reactive nature. Aerospace and defense sectors appreciate it for its use in components that are exposed to high-temperature, high-stress conditions. Tantalum is a material of preference for applications requiring critical use due to its unparalleled resistance to corrosion and the capacity to maintain mechanical properties in extreme conditions.

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