Relevant standards for control arms mainly include Chinese national standards (GB/T), automotive industry standards (QC/T), international standards (ISO), and material and testing specifications, used to ensure that their design, manufacturing, testing, and performance meet safety and compatibility requirements.
Chinese national standard GB/T 33823-2017, "Aluminum Alloy Forgings for Control Arms of Passenger Vehicles," was published on May 31, 2017, and implemented on December 1, 2017, and is currently valid. This standard specifies the technical requirements for aluminum alloy forgings used in passenger vehicle control arms.
Relevant industry standards include QC/T 1127-2019 "Technical Conditions and Test Methods for Aluminum Alloy Control Arm Assembly of MacPherson Suspension for Passenger Vehicles", and local standards include DB34/T 1558-2011 "Technical Conditions and Test Methods for Aluminum Alloy Control Arm Assembly of Passenger Vehicles".
The international standard "Road Vehicles-Shock Damperes-Test Procedures", while primarily targeting shock absorbers, often uses its test environment and operating condition settings to evaluate the durability and compatibility of the control arm and suspension system working together.
