EP 0166239 B1 19890927 - PROCESS FOR PRODUCING CONCRETE-REINFORCING STEEL BARS OR RODS EMERGING FROM THE ROLLING MILL
Title (en)
PROCESS FOR PRODUCING CONCRETE-REINFORCING STEEL BARS OR RODS EMERGING FROM THE ROLLING MILL
Publication
Application
Priority
CH 267584 A 19840530
Abstract (en)
[origin: US4594113A] For the production of a reinforcing steel with a higher yield point and good weldability and toughness, microalloying elements are alloyed with the steel and their proportion represents 0.02 and 0.06% vanadium and 0.01 to 0.02% nitrogen, said proportions not being sufficient for achieving a higher yield point of at least 450 N/mm2. However, this is reached if the rolling stock undergoes controlled, but relatively limited cooling during or after rolling, in such a way that the compensating temperature of the steel reaches at least 700 DEG C. Due to the fact that the microalloying elements are only alloyed in small quantities and only relatively small water quantities are required, reinforcing steel can be economically produced. In addition, the process permits coiling in the case of wire rolling and can also be used on other rolled steel products.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C21D 8/08 (2013.01 - EP US); C21D 9/525 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0166239 A1 19860102; EP 0166239 B1 19890927; AT E46720 T1 19891015; CH 681603 A5 19930430; DE 3573276 D1 19891102; US 4594113 A 19860610
DOCDB simple family (application)
EP 85106499 A 19850525; AT 85106499 T 19850525; CH 267584 A 19840530; DE 3573276 T 19850525; US 73859885 A 19850528