GONMO has developed the FD family of protective steel with a tensile strength range of 900 MPa to 2200 MPa and the ArmaPro family with a Brinell hardness of 450 to 700. Featuring excellent bulletproof performance, as well as outstanding cold forming and welding properties, Lianyuan’s armor plates are widely used in various applications, including private bulletproof vehicles, bank armored vehicles, armored personnel carriers, training ranges, and anti-terrorist vehicles. The hot-rolled LG900FD from Lianyuan Steel has successfully passed authentication by the Ministry of Public Security and is now utilized in armored cash carriers. Additionally, the heat-treated armor plates ArmaPro500 and ArmaPro550 have passed inspection by the China Academy of Ordnance Equipment and meet NATO testing standards.

a. The tensile sample is transverse, and the extensometer is used during the test. When the yield is not obvious, RP0.2 is used.

b. The bending sample is transverse, d is the diameter of the bending center, and a is the thickness of the sample.

c. The impact sample is longitudinal.