green
It is usually green, but owner-bottles (those not owned and rented out by a welding company) can be any color. There should always be a label on all cylinders identifying the contents. Never go just by color.
Any damage to a welding hose can end up causing serious damage to the person using it. Using a welding hose reel will significantly reduce the chance of a rip or tear in the hose, making the user that much safer. It's important to utilize welding hose reels for proper storage and to stay organized.
oxygen tanks are usually green in the united states, however, no standard is adhered to uniformly.
In cutting and welding, a black hose typically represents the fuel gas line, most commonly used for acetylene. This hose is essential for providing the fuel needed for oxy-fuel cutting and welding processes. Proper identification of hoses is crucial to ensure safety and prevent accidents associated with gas leaks or incorrect connections.
In normal usage in an oxy/acetylene cutting torch, the acetylene hose is red and the oxygen hose is green.
Acetylene is commonly used in welding with oxygen to create a high-temperature flame for cutting and welding metal.
Oxygen is an atmospheric gas that is unwanted in almost all welding processes because in it's molten state, metal oxidizes very easily and causes a weak joint. Weld surfaces are protected during the welding process to keep oxygen from contaminating the weld either by a shielding gas, flux, or in torch welding, the torches own exhaust. Occasionally however, oxygen may be added to the shielding gas mix in small amounts to stabilize the arc and reduce undercutting.
green
It could, though medical-grade oxygen is significantly more expensive than welding-grade oxygen so I'm not sure why you would want to do this.
Laying on hot metal, or having slag fall on it.
oxygen and acetylene gas Argon gas is used in MIG and TIG welding
thermit welding works with, propane and oxygen. and we need also a welding kits with one shot crucible ,portion and a luting mad.