The rash of strikes during 1919 were mainly due to the aftermath of World War I, and problems with labor and union power struggles. The Great Steel Strike was the most widely-spread strike. Other strikes in 1919 were the Seattle General Strike, Barcelona Revolutionary Strike, Dutch Steel Workers Strike, and the General Steel Strike in France.

Ken Stone has written:

'Steel strike' -- subject(s): Steel Company of Canada Strike, Hamilton, Ont., 1946, Steel industry, Strikes and lockouts, United Steelworkers of America

They worked primarily in the steel industry. Caused the Strikes. Not sure exactly what your looking for

None. The first steel cents were struck in 1943. Because the steel blanks weren't used until after the end of the 1942 runs there was no possibility of off-metal strikes like the famous 1943 copper or 1944 steel errors.

Short bead as well as arc strikes create a sudden localized temperature increase to the metal and can cause cracking.