ASME A Numbers
These refer to the chemical analysis of the deposited weld and not the parent material. They only apply to welding procedures in steel materials.
| A1 | Plain unalloyed carbon manganese steels. |
| A2 to A4 | Low alloy steels containing Moly and Chrome Moly |
| A8 | Austenitic stainless steels such as type 316. |
ASME F Numbers
| F Number | General Description |
| 1 | Heavy rutile coated iron powder elctrodes :- A5.1 : E7024 |
| 2 | Most Rutile consumables such as :- A5.1 : E6013 |
| 3 | Cellulosic electrodes such as :- A5.1 : E6011 |
| 4 | Basic coated electrodes such as : A5.1 : E7016 and E7018 |
| 5 | High alloy austenitic stainless steel and duplex :- A5.4 : E316L-16 |
| 6 | Any steel solid or cored wire (with flux or metal) |
| 2X | Alluminium and its alloys |
| 3X | Copper and its alloys |
| 4X | Nickel alloys |
| 5X | Titanium |
| 6X | Zirconium |
| 7X | Hard Facing Overlay |
Note:- X represents any number 0 to 9
Dear All ,--Can anyone explain the ways or steps for selecting electrodes for various process,A no. F no and composition where to refer these things
--With Regards
Binoy Lonappan
+91-9645100560
QAC Engineer
TECCL
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