ZHBR spring bar terminal is designed for use in rail fasteners of ZHBR type. They are manufactured according to technical conditions CP 369 TU-9 and drawing CP 369.107 by bending method, subjected to heat treatment: hardening and tempering. They are made of hot-rolled round section of 15 mm diameter from spring steel grade 38Si7 according to DIN EN 10089 standard and calibrated rolled steel grade 40S2 according to STO 71915393-TU 249.
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