US5226978A
|
|
Steel tube alloy
|
US5186769A
|
|
Seamless steel tube manufacture
|
US5000798A
|
|
Method for shape control of rail during accelerated cooling
|
US4895605A
|
|
Method for the manufacture of hardened railroad rails
|
CA1314198C
|
|
Apparatus for hardening of steel pipe by immersion quenching
|
US4486248A
|
|
Method for the production of improved railway rails by accelerated cooling in line with the production rolling mill
|
CA1193176A
|
|
Method for the production of improved railway rails by accelerated colling in line with the production rolling mill
|
CA1227110A
|
|
Pipe quenching apparatus and method
|
CA1191077A
|
|
Interrupted quench process
|
CA1125505A
|
|
Fabricated tuyere
|
DE3008417A1
|
|
Refining steel in basic oxygen furnace - using final argon blow to achieve low carbon content
|
CA1092828A
|
|
Basic oxygen furnace argon refining blow
|
CA1119399A
|
|
Apparatus for changing tuyeres on a blast furnace
|
CA1074111A
|
|
Removal and/or installation of top section of steelmaking vessel
|
US3997375A
|
|
Steel hardening method
|
US3955967A
|
|
Treatment of steel
|
CA1020360A
|
|
Flocculation-desliming process
|
US3926686A
|
|
High-strength low-alloy steel
|
US3877685A
|
|
Steel hardening apparatus
|
US3897279A
|
|
Method for the production of high strength notch tough steel
|