What do the 4 numbers on a welding rod mean?

The first digits of a 4-digit number and the first three digits of a 5-digit number represent the traction power. The line following the last digit indicates the position. Thus, 1 represents a total position electrode, 2 for a flat and horizontal electrode, and 4 for a flat, horizontal and vertical electrode, at the bottom and at the top.



What do the numbers on a furnace nozzle mean?

Oil nozzles are present in most forced combustion air burners. The number of nozzles indicates the specific degree of the nozzle, the spray angle of the model and the spray type of the model. The list of nozzles here is 75 GPM. This means that nozzles will spray.

What does SMAW mean in welding?

Armed Metal Arc Welding (SMAW), also known as Manual Metal Arc Welding (MMA or MMAW), Flow Arc Welding or informally as Rod Welding, is a manual arc welding process that uses a consumable electrode covered by a flow to place the welding.

What is 2f in welding?

2F is a liquid welding position, in which welding is performed at the top of the surfaces which is approximately horizontal and which is located against an approximate vertical surface. In this position, the torch is generally maintained at an angle of 45 degrees.

What do camshaft numbers mean?

It is listed in degrees of rotation of the vilebrequin. When someone refers to a large camera, it means that it has a longer duration, no longer Levage. The announced duration is the degrees of rotation of the vilebrequin that the elevator increases more than a predetermined amount. This predetermined amount varies from one manufacturer to another.

What is s number in welding?

When a common metal with a UNS number denomination is assigned a group number P or S or P or S more, then a common metal listed in a different specification of ASME material with the same number UNS is considered as the group number P or S or P or S plus the group number.