|
|
W
(WP)
|
WT
10
|
WT
20
|
WT
40
|
WZ
8
|
WC
20
|
WL
10
|
WL
20
|
WL
15
|
|
GREEN
|
YELLOW
|
RED
|
ORANGE
|
WHITE
|
GREY
|
BLACK
|
BLUE
|
GOLD
|
|
PURE Tungsten Color
Coded GREEN
PURE Tungsten Color Coded
GREEN, are best suited for AC Tig welding
applications.
Pure Tungsten, Green, AWS
Class EWP, AC welding applications. Least expensive of all
electrodes. Applications: aluminum and magnesium
alloys.
|
|
THORIATED Tungsten
Color Code RED, YELLOW, or ORANGE
THORIATED Tungsten Color
Code RED, YELLOW, or ORANGE, are best suited for DC Tig welding
applications.
2% Thoriated, Red, AWS
Class EWTH-2, DC welding applications. The most common type of
electrode used today. Applications: carbon & stainless steel,
nickel alloys and titanium.
|
LANTHANATED Tungsten
Color Code BLACK, GOLD or BLUE
LANTHANATED Tungsten Color
Code BLACK, GOLD or BLUE, are suitable for AC & DC welding
applications.
Lanthanated, Black, AWS
Class EWLA-1.5, AC & DC welding applications. Non-Radioactive
Good arc characteristics in ac/dc applications. Applications:
carbon & stainless steel,nickel alloys and
titanium.
|
CERIATED Tungsten
Color Code GREY or ORANGE
CERIATED Tungsten Color
Code GREY or ORANGE, are best suited for low amperage DC welding
applications.
Ceriated, Grey, An
excellant alternative to Thoriated tungsten especially in low
amperage welding. Takes 10% less current to start and has a very
stable arc.
|
ZIRCONIATED
Tungsten Color Code WHITE or BROWN
ZIRCONIATED Tungsten Color
Code WHITE or BROWN, are best suited for AC Tig welding
applications.
Zirconiated, White, AC
Welding applications. Better start up than Pure Tungsten, Balls up
well and has a more stable arc than Pure Tungsten. Better current
carrying capacity and high resistance to contamination during
welding.
|
Technical
Data:
Type
|
Grade
|
Color
|
Chemical Composition（％）
|
Surface
|
Features
|
Rare Earth
|
Impurities
|
W
|
|
Pure
Tungsten
|
WP
|
Green
|
-
|
≤0.05
|
the rest
|
D,E
G,S
|
Non-radioactive;suitable for AC welding of
aluminum,magnesium,and their alloy
|
|
Thoriated
Tungsten
|
WT10
|
Yellow
|
0.9~1.1ThO2
|
≤0.05
|
the rest
|
D,E
|
Excellent electron emission and overall performances;high
current-carrying capacity;radioactivity;suitable for DC welding of
carbon steel,stainless steel,nickel alloy and titanium
alloy.
|
|
WT20
|
Red
|
1.8~2.2ThO2
|
≤0.05
|
the rest
|
G,S
|
|
Lanthanated
Tungsten
|
WL10
|
Black
|
0.8~1.2La2O3
|
≤0.05
|
the rest
|
D,E
G,S
|
Non-radioactive;excellent electric conductivity and welding
capacity;high current-carrying capacity;minimum ratio of burnt
area;substitute for thoriated tungsten electrode;mainly used in DC
welding.
|
|
WL15
|
Golden
Yellow
|
1.3~1.7 La2O3
|
≤0.05
|
the rest
|
|
WL20
|
Blue
|
1.8~2.2 La2O3
|
≤0.05
|
the rest
|
|
Ceriated
Tungsten
|
WC10
|
Pink
|
0.8~1.2CeO2
|
≤0.05
|
the rest
|
D,E
G,S
|
Non-radioactive;easier arc initiation under low current
circumstances,and low arc-maintaining current;suitable for the
welding of pipelines,small components and discontinuous
welding.
|
|
WC15
|
Orange
|
1.3~1.7CeO2
|
≤0.05
|
the rest
|
|
WC20
|
Grey
|
1.8~2.2CeO2
|
≤0.05
|
the rest
|
|
Zirconiated
Tungsten
|
WZ8
|
White
|
0.5~0.40ZrO2
|
≤0.05
|
the rest
|
D,E
G,S
|
Non-radioactive;suitable for AC welding, have higher resistance
to contamination, is preferred for radiographic quality
welding.
|
|
Note: D : As
Drawn E : Electrolytic Polished
G : Ground S
: Swaged
|
Sizes
Diameter
(mm)
|
1.6
|
2.0
|
2.4
|
3.0
|
4.0
|
Length
(mm)
|
150 or 175
|
150 or 175
|
150 or 175
|
150 or 175
|
150 or 175
|
|
