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Tantalum Fasteners

Sizes in Stock: M2 to M120
Metals Type : High Purity and Biocompatibilty
Standard : ASME B18 2.1
Oxygen Temperature : Above 300°C
Known For : Chemical Inertness
Melting Point : 3000°c

Purity : 99.95%
Sizes Can Be Manufacture: Up to M180
Hardness : Hv250
Sample : Free Sample Can Be Sent For Test
Test : Impact Test
Environments : Oxygen Rich
High Density : 16.68 G/cm3
Production Capacity : 100 Tons per month

Tantalum Bolts Manufacturer for Aerospace Industry

Tantalum fasteners made from a rare metal tantalum. Tantalum bolts provide better corrosion resistance than nickel alloys fasteners, zirconium fasteners and titanium fasteners. Tantalum nuts are also extremely stable at high and pressure temperatures. Tantalum screws manufacturer, At Dalloyed Fasteners, our team of experts ensures that all our tantalum threaded rod are manufactured to the ASME B18 2.2 and ASME B18 2.1, DIN, ISO and BS standards.

Table of Content

Tantalum Fasteners Specifications
Tantalum Bolts Torque Spec
Corrosion Resistance of Tantalum Nuts
Tantalum Fasteners Grades
Tensile Strength of Tantalum Screws Room Temperature Wise
Applications of Tantalum Threaded Rod
Top 10 Tantalum Washers Benefits
Tantalum Alloy Fasteners Chemical Composition
Pure Tantalum Fasteners Physical Properties
Types Of Tantalum Bolts
Types Of Tantalum Alloy Nuts
Types Of Tantalum Screws
Types Of Pure Tantalum Stud Bolt
Types Of Tantalum Washers

Supplied in April 23, 2025

Veren

M6, Hex Bolts
Calgary, Alberta, Canada

Empresas Copec

M3, Flat Head Screws
Santiago, Chile

Tantalum Fasteners Specifications

Size In Ready Stock

Screw Size = M1.2 To M48
Stud Size = M4 To M100
Nut Size = M2 To M80
Washer Size = M2 To M24
Bolts Size : M1.2 To M120

Tantalum Bolt Head Style

Flat head
Truss head
Round head
Button head
Hex head

Neck Type of Tantalum Alloy Bolt

Triangular Neck
Knurled Neck
Hex Neck
Square Neck

Threads Types of Tantalum Pure Bolt

BSW
CBSF
UN
UNF

Head Drive of UNS R05200 Bolt

Six-Lobe
Slotted
Phillips
Phillips/Slot

Tantalum Alloyed Bolt Ends Types

Rounded
Sheared
Flat or Saw cut
Chamfered

Tantalum R05252 Threaded Rod

Condition : Threading or Cold Drawn
Threads : Left and Right Hand, Both Side

Tantalum TA1 Stud Bolts

End Types : Rounded, Flat and Saw Cut
Threads : Double End, Fully or Fine Threaded

TA2 Tantalum Screws

Threads Pitch : Fine and Coarse
Head Shape : Round, Pan, Button

99.95% Pure Tantalum Washers

Forms : A, D, C, G, B, E
Thickness : 0.002" to ½"

Manufacturing Process

CNC Machine
Hot forging
Cold forging

Advantages

High Temperature Performance
Strength
Durability

Testing Requirements

X-Ray Testing
Ferritiscope Testing
Hardness Testing

Application

Medical Industry
Nuclear Reactors
Chemical Industry

Packaging Types

Custom
Wooden Cases
Carton Box

Raw Material

German
European
Janpanese

Since 2015, Dalloyed Fasteners Has Supplied Tantalum Threaded Rod in USA, South Africa and UAE

Tantalum Bolts Torque Spec

Tantalum CP Bolt/Screw Torque Chart
Nominal Diameter (inch)	Torque ft-lb (Lubricated)	Threads/in	Torque ft-lb (Dry)
5/16"	3.6	18	4.7
	3.9	24	5.2
3/8"	6.3	16	8.4
	7.1	24	9.5
7/16"	10.1	14	13.4
	11.3	20	15.0
1/2"	15.4	13	20.5
	17.3	20	23.1
1/4"	1.7	20	2.3
	2.0	28	2.6
9/16"	22.2	12	29.5
	24.7	18	33.0
5/8"	30.6	11	40.8
	34.6	18	46.2
7/8"	88	9	117
	96	14	129
1"	131	8	175
	147	14	196
3/4"	54	10	73
	61	16	81
1-1/4"	228	7	305
	253	12	337
1-1/2"	397	6	530
	447	12	596

Corrosion Resistance of Tantalum Nuts

Acetic Acid
Chloroacetic Acid
Chromic Acid
Magnesium Hydroxide
Nitric Acid
Organic Acids

Ferric Chloride
Hydroiodic Acid
Phosphorus Oxychloride
Sodium Sulfate
Sulfamic Acid
Zinc Chloride

Tantalum Fasteners Grades

R05200
R05255
R05400
R05252

Tensile Strength of Tantalum Screws Room Temperature Wise

Temperature(°F)	Ultimate Tensile (ksi)	Elongation %	Yield Strength at0.2% Offset (ksi)
Room Temp.	40.0	50.0	25.0
600	28.0		8.0
200	29.0		22.0
800	27.0		2.5
400	28.0		12.0

Applications of Tantalum Threaded Rod

Top 10 Tantalum Washers Benefits

Increased Strength
Non-Magnetic
High Melting Point
Good Electrical Conductivity
Strong Corrosion Resistance

Excellent Corrosion Resistance
Cost-Effective
Good Biocompatibility
Wear Resistance
Highly Conductive

Tantalum Alloy Fasteners Chemical Composition

UNS R05200

Tantalum (CP)	Si	Ta	Nb	H	Mo	N	C	O	Ti	W	Ni	Fe
Maximum%	0.010	>99.95	0.100	0.010	0.020	0.010	0.010	0.015	0.010	0.050	0.010	0.010

UNS R05252

Tantalum 2.5%W	Nb	Ta	W	H	Mo	C	Si	Ti	Ni	O	Fe	N
Typical%	0.50	Bal	2.5	0.002	0.020	0.010	0.005	0.010	0.010	0.015	0.010	0.010

Pure Tantalum Fasteners Physical Properties

Grade	Tantalum Fasteners
Density	16.6 g/cc
Melting Point 3290 K	2996°C, 5462°F
Boiling Point 5731 K	6100°C, 9856°F
Electrical Resistivity (20°C)	13.5 microhms-cm
Coefficient of Thermal Expansion (20°C)	6.5 x 10(-6) / °C
Electrical Conductivity	13% IACS
Specific Heat	0.036 cal/g/°C
Thermal Conductivity	.13 cal/cm(2)/cm°C/sec