The material is 4150. A local welding supply store thought maybe 11018 electrode is what they were talking about. The high tensile strength makes sense with a lifting device.
It is possible that the drawing is using the nomenclature from ISO 4063 (EN 24063) which indicates the welding method by using a three digit number. For example, MIG welding (GMAW with inert gas) is indicated by 131. TIG welding (GTAW) is indicated by 141. Firecracker welding is the method indicated by 118. I am not familiar with this term, but it appears under the broader category of Metal-arc welding without gas protection. Maybe someone else can provide additional details.
I heard this term used for FCAW 110 ksi self shielded wire.
11 being the 110 ksi strength level and the 8 being self- shielded. Complete callout would be E11(1/0)(T)8
This falls under AWS A 5.29.
I have also heard it used for OAW both on copper/brass and c/s.