KUKJE ST’s products including fence, guardrail, footbridge, and bridge barriers are well known for their safety and sophisticated design. Owed to the well-equipped facilities and skilled workers, we design, manufacture, inspect and install all of products by ourselves.

Guardrail is designed to prevent car rollover caused by crossing the sidelines and car accidents caused by road debris at waysides. KUKJE ST uses a ternary alloy coated steel (PosMAC) that is a corrosion-resistant products 5 to 10 times stronger resistance than that of a normal hot-dip galvanized steel sheet. We have many kinds of steel guardrails not only basic W-beam and Thrie-beam guardrails but also box beam guardrails considering beauty of the scenery for drivers. Customers can choose our guardrails depending on their situations.

Additionally, KUKJE ST’s guardrail offers not only greater durability but also higher passenger’s safety compared to other products that focus only on strength. Our product has passed SB1, SB2, SB3, SB3-B, SB4, SB5, SB5-B grades of the vehicle impact test so as to be guaranteed its product performance.

⁜ Sliding Guardrail: if there is a vehicle impact, KUKJE ST’s rail slides laterally, dispersing the force of the impact and reducing risk of passenger injury.

Steel Guardrail

1. Material - Surface Treatment
 a. PosMAC : A ternary alloy coated steel (Zn-3%Mg-2.5%AL) with high corrosion resistance.
 b. PosMAC Self Healing : The upper coating layer can be dissolved to cover the cross-section the growth of a stable corrosion product. However red-rust can be found in the already exposed steel plate, but fortunately, the film of the corrosion products  covers the cross-section to prevent corrosion.

2. Vehicle Impact Test
 a. Performance Standard : Deformation ≤ 1.0m, THIV ≤ 33km/h, PHD ≤ 20g
 b. Test Result