Gas Welding Temperatures

Gas Welding: Gas welding up to 1800c
Electric Welding 2000c ~ 10000c.

½ “ thick plate 4000c ~ 6000c

6 “ thick plate 9000c ~ 10000c

¼” 2000c ~ 2500c

1/8” 1800c ~2000c

TIG Welding we use

Tungston Inert Gas Welding

1-We use Non consumable tungsten electrode
2-We use Argon as shielding gas
3-We weld only Ca, Al and alloys of Cu & Aluminium
MIG Welding

1-We use consumable electrode using automatic wire feeds.
2-We use MIG welding Machine to weld both Ferrous (Cu, Al and alloys)
3-For welding Al and Cu, we use Argon as shielding Gas.
4-For welding Stainless steel we use Co2 as shielding Gas.

Submerge Arc Welding

SMAW is a five pass welding or multiple pass welding powder. Arc dips into flux. SMAW is a single pass welding. SAW welding powder flux is used properties.

1-Zero defect welding
2-Zero distortion
3-High efficiency
4-Able to weld high volume after work Submarines, Tanks, Ships, Pressure Vessels ( Having Lange thickness)
5-Single pass cutting

What is Earthquake Resistance Steel?

These following qualities should be in steel:-

1-Elongation should be 20%
2-Should be Galvanized ( coating)
3-Should be retain -20c to +20c

Note:- ( 95% defects in welding due to materials)

What is soaking time?

During this period we heated the metal called (soaking time).

What is Radiographic?

Through this we can see all defects, flaws and cracks.


Posted by: Adnan