Tungsten Copper Rod | ASTM B702 | W-Cu Alloy

2.4715 Round Bar Stockist, JIS H 1402 Round Bar Distributor, DIN 30910 Round Bar Exporter, ASTM B702 Tungsten Round Bar Manufacturer, Tungsten Round Bar Supplier.

Tungsten copper rod is a composite material that brings together the best of tungsten and copper: high density, strong thermal and electrical conductivity, and excellent wear resistance. Most rods run 50-90% tungsten by weight, with copper making up the rest. They are made through powder metallurgy, using pressing, sintering, and infiltration. The result keeps tungsten's high melting point (over 3400°C), low thermal expansion, and strength at temperature, while gaining copper's conductivity and ductility. The material is non-magnetic and holds up well to arcing, which is why it earns a place in electrical and high-heat work. PM Industries supplies and stocks tungsten copper rod in a range of compositions and sizes.

2.4715 Round Bar, Tungsten Round Bar, ASTM B702 Tungsten Round Bar, JIS H 1402 Round Bar.

These rods are used across aerospace, defense, electronics, and power industries. Common applications include electrical contacts, resistance-welding electrodes, EDM components, heat sinks for high-power electronics, and radiation shielding. The ability to take intense thermal shock and stay structurally sound under extreme conditions is what sets the material apart from ordinary metals. It offers low contact resistance, high hardness, and clean machinability for precision parts. In automotive and electronics work, tungsten copper rod goes into spark plugs, circuit breakers, and high-voltage switches, where dependable performance under arcing is the whole point.

PM Industries supplies premium-grade tungsten copper rod in compositions such as WCu 70/30, 75/25, 80/20, and custom blends, across a range of diameters with precise length options and tight tolerances. Every rod ships with material certification and traceability, so quality stays consistent for critical parts. The high density suits weight-sensitive designs, the heat dissipation keeps electronics cool, and the low erosion under electrical discharge stretches component life. Those gains are why so many industries pick it over pure metals.

We handle both small prototype runs and large production orders, with technical support on material selection and machining. For high-temperature furnace components, military parts, or advanced electronics cooling, tungsten copper rod delivers reliable performance where ordinary metals fall short. Tell us your composition, diameter, length, and tolerance, and we will quote it.

Specification Tungsten Copper Rod

Specification	ASTM, EN, DIN, JIS, BS, ASME, AISI
Condition	Hardened & tempered, annealed
Length	1 to 6 Meters, Custom Cut Lengths
Round Bars	Outside Diameter in the range of 4mm to 500mm above as per the customer requirement.
Bright Bars	Outside Diameter in the range of 4mm to 500mm above as per the customer requirement.
Hex Bars	18mm – 57mm (11/16″ to 2-3/4″) above as per the requirement.
Square Bars	18mm – 47mm (11/16″ to 1-3/4″) above as per the requirement.
Flat Bars	1/2” to 10” in thickness range of 2mm to 150mm
Finish	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Technique	Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rod
Tolerance	H8, H9, H10, H11, H12, H13, K9, K10, K11, K12 or as per clients’ requirements
Test Certificates	EN 10204/3.1B, NACE MR0103, NACE MR0175
Raw Materials Certificate	100% Radiography Test Report
Inspection	Third Party Inspection Report, etc

Available Types

Tolerances for Tungsten Round Bar

Shape / Section	Size, diameter or width across flats	Permitted variation
	milimeter	milimeter
Round	≥6 ≦ 18 > 18 ≦ 30 > 30 ≦ 50 > 50 ≦ 80 > 80 ≦ 100	+ 0 to - 0.070 + 0 to - 0.085 + 0 to - 0.100 + 0 to - 0.120 + 0 to - 0.140
Flat (thickness)	< 18 > 18 ≦ 30 > 30 ≦ 50 > 50 ≦ 80	+ 0 to - 0.110 + 0 to - 0.130 + 0 to - 0.250 + 0 to - 0.350
Flat (width)	< 18 > 18 ≦ 30 > 30 ≦ 50 > 50 ≦ 80 > 80 ≦ 100 > 100 ≦ 130 > 130 ≦ 160 > 160 ≦ 320	+ 0 to - 0.110 + 0 to - 0.130 + 0 to - 0.160 + 0 to - 0.190 + 0 to - 0.220 + 0 to - 0.350 + 0 to - 1.00 + 1.00 to - 1.00
Square and hexagon	≥ 6 ≦ 18 > 18 ≦ 30 > 30 ≦ 50 > 50 ≦ 80 > 80 ≦ 105	+ 0 to - 0.090 + 0 to - 0.110 + 0 to - 0.130 + 0 to - 0.160 + 0 to - 0.250

Tungsten Round Bars Properties

Composition	Density	Electrical Conductivity	CTE	Thermal Conductivity	Hardness	Tensile Strength
	g/cm³	IACS % Min.	10-6 K-1	W/m · K-1	HRB Min.	Mpa Min.
50/50	11.70	56	13	-	69	344
55/45	12.50	55	12	-	79	360
60/40	12.75	49	11.8	-	85	380
70/30	13.80	44	10.3	200	90	516
75/25	14.50	48	10.22	190	95	585
80/20	15.15	40	9.20	180	100	620
90/10	16.75	27	7.4	170	-	700

Size

US Bar		Metric		Japanese		Canadian/ASTM
Diameter (Inch)	Size of Bar	Diameter (milimeter)	size of Bar	Diameter (milimeter)	size of Bar	Diameter (milimeter2)	size of Bar
0.375	#3	5.5	5.5	10	10	200	15M
0.25	#2	5	5	6	6	100	10M
0.625	#5	7	7	16	16	500	25M
0.5	#4	6	6	13	13	300	20M
0.875	#7	9	9	22	22	1000	35M
0.75	#6	8	8	19	19	700	30M
1.125	#9	11	11	29	29	2500	55M
1	#8	10	10	25	25	1500	45M
1.375	#11	14	14	35	35
1.25	#10	12	12	32	32
1.625	#13	18	18	41	41
1.5	#12	16	16	38	38
1.875	#15	22	22	48	48
1.75	#14	20	20	44	44
2.25	#18	28	28	57	57
2	#16	25	25	51	51
		36	36
		32	32
		44	44
		40	40
		50	50

Condition

ANN	Annealed
H&T	Hardened and tempered.
PH	Precipitation hardened.

Finish

Bright drawn	BD	Slit rolled edge	SRE
Cold drawn	CD	Polished	P
Peeled and turned	P&T	Rough turned/peeled	RT
Cold finished	CF	Hot rolled pickled and annealed	HRAP
Centreless ground	CG	Hot finished	HF
Smooth turned	ST	reeled and Peeled	PR

Available Stock

Tungsten Annealed Round Bar	JIS H 1402 Shafting Round Bar
ASTM B702 Tungsten Normalized Round Bar	DIN 30910 Automotive Round Bar
2.4715 Quenched & Tempered Round Bar	ISO 4499 Aerospace Round Bar
JIS H 1402 Solution Annealed Round Bar	Tungsten Oil & Gas Round Bar
DIN 30910 Hardened Round Bar	ASTM B702 Tungsten Marine Round Bar
ISO 4499 Bright Round Bar	2.4715 Medical Grade Round Bar
Tungsten Polished Round Bar	JIS H 1402 Hot Rolled Round Bar
ASTM B702 Tungsten Mirror Finish Round Bar	DIN 30910 Cold Drawn Round Bar
2.4715 Pickled & Passivated Round Bar	ISO 4499 Cold Rolled Round Bar
JIS H 1402 Coated / Plated Round Bar	Tungsten Forged Round Bar
DIN 30910 Commercial Round Bar	ASTM B702 Tungsten Peeled Round Bar
ISO 4499 Precision Round Bar	2.4715 Turned Round Bar
Tungsten Straight Length Round Bar	JIS H 1402 Ground Round Bar
ASTM B702 Tungsten Cut-to-Length Round Bar	DIN 30910 Centreless Ground Round Bar
2.4715 Structural Round Bar	ISO 4499 Precision Ground Round Bar