Professional Factory for Tungsten Bar

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We believe in: Innovation is our soul and spirit. Quality is our life. Shopper need is our God for Professional Factory for Tungsten Bar, We attend seriously to produce and behave with integrity, and because of the favor of consumers in the home and abroad in the xxx industry.
We believe in: Innovation is our soul and spirit. Quality is our life. Shopper need is our God for 99.99% Tungsten Bar, Tungsten Bar, Tungsten Carbide Rods, With the intensified strength and more reliable credit, we have been here to serve our customers by providing the highest quality and service, and we sincerely appreciate your support. We’ll endeavor to maintain our great reputation as the best merchandise supplier in the world. If you have any questions or comments, please contact with us freely.
Chemical composition:

Main and minor components Min.content(%) ASTM B760
W 99.95 balance
Impurities Max.values (μg/g) Max.values (μg/g)
Al 15 -
Cu 10 -
Cr 20 -
Fe 30 100
K 10 -
Ni 20 100
Si 20 100
Mo 100 -
C 30 100
H 5 -
N 5 100
O 20 100
Cd 5 -
Hg 1 -
Pb 5 -

Diameter and tolerances:

Diameter (mm) Tolerance
  Straightened Forged Turned Ground
0.50-0.99 - -   ±0.007
1.00-1.99 - -   ±0.010
2.00-2.99 ±2.0 % -   ±0.015
3.00-15.9 - -   ±0.020
16.0-24.9 - ±0.30   ±0.030
25.0-34.9 - ±0.40   ±0.050
35.0-39.9 - ±0.40 ±0.30 ±0.060
40.0-49.9 - ±0.40 ±0.30 ±0.20
50.0-90.0 - ±1.00 ±0.40 -

Length and straightness:

Diameter (mm) Production length (mm) Stiraightness/Meter (mm)
Cleaned Ground/turned
0.50-10.0 ≥500 <2.5 <2.5
10.1-50.0 ≥300 <2.0 <1.5
50.1-90.0 ≥100 <2.0 <1.5

Length tolerance:

Diameter 0.50-30.0 mm
Nominal length (mm) ≥15 15-120 120-400 400-1000 1000-2000 >2000
Length tolerance(mm) ±0.2 ±0.3 ±0.5 ±2.0 ±3.0 ±4.0
Diameter >30.0 mm
Nominal length (mm) ≥30 30-120 120-400 400-1000 1000-2000 >2000
Length tolerance(mm) ±0.5 ±0.8 ±1.2 ±4.0 ±6.0 ±8.0

Density: ≥19.1g/cm³
Nondestructive testing: For diameters>15.00 mm:100% ultrasonic testing. For diameters of 0.50-50.0mm:Eddy curent tests on rods with ground surface.

Diameter(mm) Hardness (HV 10)
0.50-2.99
3.00-9.99 420-500
10.0-29.9 420-480
30.0-49.9 380-460
≥50 >350

Surface condition:

Diameter (mm) Surface condition
0.50-90.0 Chemical cleaned
≥40.0 Turned Ra ≤3.2μm
0.50-30 Centerless ground Ra≤1.0μm
≥40.0 - Centerless ground Ra≤1.2μm

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