A Number?

[duongwe]

how can i understand A Number of material? how can i find it? what does it mean? what code/standard can i use finding A number?
Someone can help me.

 

[632451]

A number for the chemical for the welding material, you can find it in the ASME Section IX.

 

[metengr]

The A- no is a designation used by ASME B&PV (Boiler and Pressure Vessel) Code, Section IX that relates to a common chemical composition for weld filler metal. Get a copy of Section IX and review it. Section IX is one of 12 book sections that deals with welding procedure and welder qualification along with brazing.

 

[blacksmith37]

Better get familiar with "F" and "P" numbers at the same time.