Pure Tungsten and Tungsten Alloys

Ultramat Advanced Materials and Technologies Ltd. specializes in the supply of Tungsten and Tungsten Alloys. For nearly 30 years, our customers have kept coming back to us with their requirements for Tungsten materials and custom fabricated parts.

With our extensive expertise in Tungsten and Tungsten Alloys, we can provide fabricated parts with exceptionally tight tolerances and complicated threaded holes with excellent surface finishes. Order quantities range from one unit to large run jobs. We strive to provide reliable, problem-free service while providing quality and economic solutions to meet your needs.

Our extensive product portfolio includes heating elements, radiation shields, balancing weights, crucibles and boats, nozzles, fasteners and precision parts according to drawing.

Tungsten Alloy Grades:

	90% W 6% Ni 4% Cu	90% W 6% Ni 4% Fe	92.5% W 5.25% Ni 2.25% Fe	95% W 3.5% Ni 1.5% Cu	95% W 3.5% Ni 1.5% Fe	97% W 2.1% Ni 0.9% Fe
Mill, Spec. T-21014 D	Class 1	Class 1	Class 2	Class 3	Class 3	Class 4
SAE Aero. MaterialSpec. (AMS) 7725C	Type 1	Type 2	——	——	——	——
ASTM-B-777	Class 1	Class 1	Class 2	Class 3	Class 3	Class 4
Density Gms/cc	17.0	17.0	17.5	18.0	18.0	18.5
Hardness Rockwell C	24	25	26	27	27	28
Ultimate Tensile Strength (PSI)	110,000	120,000	114,000	110,000	120,000	123,000
Yield Strength .2% offset (PSI)	80,000	88,000	84,000	85,000	90,000	85,000
Elongation (% in 1″)	6	10	7	7	7	5
Proportional Elastic Limit (PSI)	45	52	46	45	44	45
Modulus of Elasticity (PSI)	40 x 106	45 x 106	47 x 106	45 x 106	50 x 106	53 x 106
Coefficient of Thermal Expansion x 10-6/oC (20-400oC)	5.4	4.61	4.62	4.43	4.6	4.5
Thermal Conductivity CGS Units	23.	18.	20.	33.	26.	30.
Electrical Conductivity (% IACS)	14	10	13	10	13	17
Magnetic Properties	NIL	Slightly Magnetic	Slightly Magnetic	NIL	Slightly Magnetic	Slightly Magnetic

**Additional grades available upon request

Capabilities

CNC turning, prototyping and series work
longitudinal turning | precision turning
product range from ø 0.1mm to ø 750mm
CNC milling, prototyping and series work
simultaneous 5-axis milling product range from square 0.3mm to 500x650x1000mm
EDM machining tools as well as laser cutting, to meet your most complex requirements
High Precision Capabilities CNC: 5 microns | EDM: 6 microns
Specialty Materials Offered
Tungsten, Molybdenum, Titanium, Graphite, Copper and Cu Alloys, Stainless Steel, Tungsten Carbide and Ceramics
Laser drilling | laser engraving | bending | assembly | electrolytic polishing
Laser measurements | scan measurements | 3D measurements | product traceability
Product cleaning | cleanroom packaging
Class 4

Copper-Tungsten Alloys:

W/Cu 90/10

W/Cu 85/15

W/Cu 80/20

W/Cu 75/25

W/Cu 70/30

These can be supplied in the following shapes:

Plates, Sheets, Blocks, Rods, Tubes

Electrodes

Nozzles

Contacts

Copper Tungsten Custom shapes

Pure Tungsten Grades:

Pure Tungsten Grade	Shapes	ASTM
Pure Tungsten 99.95% min	Plate, Sheet, Foil	B760
Pure Tungsten 99.95% min	Bar, Rod, Wire	B761

These can be supplied in the following form:

Plates, Rods, Sheets, Bars

Balancing Weights

Radiation Shields

Wires, Coils

Large Tungsten plates for Vacuum Furnaces

Heating elements for Vacuum Furnaces

Crucibles and Boats

Sputtering Targets

Foils up to 4 microns

Standard foils

Fabricated parts according to drawings and specifications