OEM/ODM Manufacturer Tungsten Foil For Melting - Fast delivery 2018 Plant Wt20 Wt10 Tig Welding Tungsten Welding Electrode Wt 20 Wt 10 Welding Rod – Forged Tungsten

Our company since its inception, always regards product quality as enterprise life, continuously improve production technology, improve product quality and continuously strengthen enterprise total quality management, in strict accordance with the national standard ISO 9001:2000 for Fast delivery 2018 Plant Wt20 Wt10 Tig Welding Tungsten Welding Electrode Wt 20 Wt 10 Welding Rod, Our goal is “blazing new ground, Passing Value”, in the potential, we sincerely invite you to mature up with us and create a vivid foreseeable future jointly!
Our company since its inception, always regards product quality as enterprise life, continuously improve production technology, improve product quality and continuously strengthen enterprise total quality management, in strict accordance with the national standard ISO 9001:2000 for Tungsten Welding Electrode, Welding Electrodes, Welding Rod, With all these supports, we can serve every customer with quality product and timely shipping with highly responsibility. Being a young growing company, we might not the best, but we’ve been trying our best to be your good partner.
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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