We start with a specialized chemistry carbon alloy tube body. Our 4130 Carbon alloy, green tube starts its journey by transiting a slot furnace to be heated to 2,300 degrees. Once at the required temperature, the end is secured in a set of precision machined dies. The forge’s center punch pushes the 2,300- degree steel into the die recess to make the forged upset. After the upset is complete, the forging is inspected internally and externally, and then ground on the edges where steel flashed between the dies.