I am assuming you are concerned about the fumes produced #1 or maybe whether the galvanized coating should be removed prior to welding #2. #1 Galvanizing is usually a hot dipped process that contains zinc. Zinc can make you extremely ill and possibly kill you. Low doses give you zinc chills. Symptons feel like malaria. You can tell when you are being exposed to too much as it begins to smell sweet. Weld with plenty of ventilation. Upwind of air movement is best. #2 Zinc burns fiercely and vaporizes well below the temperature of the arc. It mixes with the weld creating a poor weld. Grinding off the zinc prior to welding greatly reduces this effect. Painting with a zinc coating while the pipe is still hot is recommended.
Depends on how long the pipe is
The base metal is iron - the active metal is zinc (galvanized)
wildly welding main pipe the are fillet weld or butweld
It is pre galvanised pipe that is pipe manufacture GP SHEET/COIL
Yes, A105 fittings can be welded to black iron pipe, as both materials are compatible for welding. A105 is a carbon steel specification commonly used for forged fittings, while black iron pipe is also made from carbon steel. However, proper procedures, including appropriate welding techniques and filler materials, should be followed to ensure a strong and reliable joint. It's important to consider the application and any potential standards or regulations that may apply.
ERW (Electric Resistance Welding) pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length; hence ERW pipe has a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.
Not really, there are tiny lumps all over most of it.
Welding, Brazing ,threading with Teflon tape (unless it is gas)
galvanised pipe
galvanised pipe
abe chutiye kuch kaam dhaam nahi hai kya life mein... behenchod iron ki rating pooch raha haIA
there is difference in material ms is mild steel and gi is galvanised iron, hence the properties will be different