GB/T13788-2017 Test with Cold Rolling Ribbed Bar for Mechanical Property

• cold rolling ribbed bar is made of hot rolled round wrapped strip is cold rolled, it is steel bar with uniform distributed horizontal rib of 2 or 3 sides along length direction.
• CRB550 cold rolled rib steel is used to common steel bar
• CRB650/CRB800/CRB970 cold rolled rib steel bar is used to prestressed concrete
• cold rolled rib steel bar tensile test adopt hydraulic universal testing machine or electronic universal testing machine.
•  cold rolled rib steel bar bending testing machine adopt steel bar bending testing machine.
•  cold rolled rib steel bar repeat bending testing machine
•  cold rolled rib steel bar stressed relaxation test adopt steel bar tensile stressed relaxation testing machine.