Tantalum Sheet and Plate

CAS Number:	7440-25-7
Standard:	ASTM B708, ISO 13602, ASME SB-708
Purity:	≥99.9% or 99.95%
Size:	Thickness 0.07-10 mm; Width 30-1000 mm; Length 30-3000 mm
Material Grade:	R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both R05400, unalloyed tantalum, powder-metallurgy consolidation.

 

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Product Description

Tantalum sheets and plates are crafted from high-purity tantalum metal, known for its exceptional resistance to corrosion and high-temperature stability. These flat-rolled products are widely used in demanding applications, including chemical processing, electronics, aerospace, and medical industries, where reliability and durability are paramount.

 

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Features and Properties

Purity: Up to 99.95% or 99.99% for specialized applications.

High Melting Point: 3,017°C, enabling usage in extreme thermal environments.

Corrosion Resistance: Immune to most acids, including hydrochloric acid and sulfuric acid.

Excellent Workability: Highly ductile and formable for complex manufacturing needs.

Thermal and Electrical Conductivity: Suitable for electronics and heat-resistant components.

 

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Product Forms

Tantalum sheets: Thin, flexible, and suitable for various industrial and electronic applications.

Tantalum plates: Thicker, robust forms designed for structural or high-performance uses.

 

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Production Method and Production Equipments

Vacuum Arc Melting: Ensures high purity and homogeneous microstructure.

Hot Rolling Mills: For initial shaping and thickness reduction.

Cold Rolling Mills: Achieves final dimensions and improved surface quality.

Annealing Furnaces: Restores ductility and removes internal stresses.

Surface Polishing Tools: For customized finishes as per application needs.

 

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Applications and Related Industries

Chemical Industry: Used as liners, tanks, and reactors for highly corrosive environments.

Electronics: Ideal for capacitor components, sputtering targets, and heat sinks.

Medical Field: Biocompatible material for surgical tools and implants.

Aerospace: Engine parts and high-performance components resistant to extreme conditions.

Defense and Energy: Nuclear reactors, shielding, and missile systems.

 

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Interesting Facts

Tantalum sheets can withstand exposure to strong acids without corroding, making them ideal for chemical process equipment.

Due to its high density and biocompatibility, tantalum is also used in prosthetics and medical implants.

Tantalum plates are frequently utilized in the production of specialty superalloys.

 

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Synonyms

Tantalum Rolled Sheet

Tantalum Flat Plate

Ta Sheet and Plate

 

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Health & Safety Information

Toxicity: Tantalum is generally non-toxic and safe for handling, though tantalum dust may pose respiratory risks.

Handling Precautions: Use protective gloves and masks during fabrication to avoid contact with fine particles.

Storage Recommendations: Store in dry, clean environments to prevent contamination and maintain material integrity.

 

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Chemical Composition

Element	C	O	N	H	Fe	Mo	Nb	Ni	Si	Ti	W
R05200 (%,Max)	0.01	0.015	0.01	0.0015	0.01	0.02	0.1	0.01	0.005	0.01	0.05
R05400 (%,Max)	0.01	0.03	0.01	0.0015	0.01	0.02	0.1	0.01	0.005	0.01	0.05

Mechanical Properties for Tantalum Rolling Products

Grade and size	Annealed (Regular temper)
	Tensile strength Min, psi (MPa)	Yield strength min, psi (MPa)(2%)	Elongation min, % (1 inch gage length)
Sheet, foil and plate (R05200, R05400)
Thickness<0.060" (1.524mm)	30000 (207)	20000 (138)	20
Thickness≥0.060" (1.524mm)	25000 (172)	15000 (103)	30
Ta-10W (R05255) tantalum tungsten alloy sheet and plate
Thickness<0.125" (3.175mm)	70000 (482)	60000 (414)	15
Thickness≥0.125" (3.175mm)	70000 (482)	55000 (379)	20
Ta-2.5W (R05252) tantalum tungsten alloy sheet and plate
Thickness<0.125" (3.175mm)	40000 (276)	30000 (207)	20
Thickness≥0.125" (3.175mm)	40000 (276)	22000 (152)	25
Ta-40Nb (R05240) tantalum niobium alloy sheet and plate
Thickness<0.060" (1.524mm)	40000 (276)	20000 (138)	25
Thickness>0.060" (1.524mm)	35000 (241)	15000 (103)	25

Chemical Identifiers

Linear Formula	Ta
MDL Number	MFCD00011252
EC No.	231-135-5
Beilstein/Reaxys No.	N/A
Pubchem CID	23956
SMILES	[Ta]
InchI Identifier	InChI=1S/Ta
InchI Key	GUVRBAGPIYLISA-UHFFFAOYSA-N

Tantalum Sheet and Plate Properties (Theoretical)

Molecular Weight	180.94
Appearance	Silvery-gray solid
Melting Point	3017 °C
Boiling Point	5458 °C
Density	16.69 g/cm3 (20 °C)
Solubility in H2O	N/A
Crystal Phase / Structure	α: body-centered cubic (bcc) / β: tetragonal
Electrical Resistivity	131 nΩ·m (20 °C)
Electronegativity	1.5 Paulings
Heat of Fusion	36.57 kJ/mol
Heat of Vaporization	753 kJ/mol
Poisson's Ratio	0.34
Specific Heat	140 J/kg·K
Thermal Conductivity	57.5 W/m·K
Thermal Expansion	6.3 µm/m·K
Vickers Hardness	870–1200 MPa
Young's Modulus	186 GPa

 

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