Changsha DLADTO Rebar Splice Co., Ltd

Rebar couplers   are classified into several grades according to their quality and performance. The main grades include: 1. Standard Grade Rebar Couplers: These couplers are manufactured according to national construction industry standards, ensuring reliable quality and stable performance. They are made of common steel materials such as HRB400 grade hot-rolled ribbed steel bars and are suitable for general construction projects. 2. High Strength Grade Rebar Couplers: Couplers in this grade have higher tensile strength and toughness, which maks them good for projects that require higher structural integrity. Often, they utilize HRB500 grade hot-rolled ribbed steel bars or other kind of high-strength steel materials. 3. Ultra-High Strength Grade Rebar Couplers: Couplers in this grade have much better higher tensile strength and toughness, making them ideal for special high-capacity engineering projects such as large-span structures and high-rise buildings. 4. Special Purpose Grade R...

Class I   Rebar Connector There are two criteria for determining the level I joint: 1) The actual tensile strength of the reinforcing rebar connector must be greater than the standard strength of the reinforcing bar base material, and it must be broken from the reinforcing bar.  2) If the connecting piece damages but didn't broken the steel bar, the actual tensile strength value of the rebar connector must be bigger than 1.1 times the standard tensile strength value of the parent material, and it can be judged as qualified when reach or over 594Mpa. The standard tensile strength value of HRB400 steel bar is 540Mpa. Class II Rebar Connector Judgment standard for grade II rebar connector: No matter which place of the rebar connector is broken, as long as the actual tensile strength value of the steel bar connector exceeds the standard tensile strength value of the steel base material by 540Mpa, it can be judged as qualified. Class III Rebar Connector Judgment standard for grade ...