W beam/Thrie beam highway guardrail
W beam/Thrie beam highway guardrail
Description:
Sheet steel are corrugated into W beam or Thrie beam via cold forming process, then going through hot dipped galvanized and further power spray to enhance anti-corrosion, matching with accessories like round post/square post, bolts/nuts, obstruction block, highway guardrail/safety barrier is widely installed on highway/express way to keep the vehicles running inside of road. When inevitable collision occurred, highway guardrails can effectively decelerate the speed of errant vehicles and redirect them back to the road by controlling the exit angles. Additionally, it also makes the highway apparent to avoid running animals to stray into the roads.
Manufacturing standard:
China: GB/T31439.1/2, crash testing of safety performance according to JTG B05-01-2013 which refers to and is higher than USA M.A.S.H specification.
China standard/GB guardrails :
GB guardrails is designed and made according to GB/T31439.1 and GB/T31439.2 standards. The crash testing of safety performance according to JTG B05-01-2013 which refers to and is higher than USA M.A.S.H specification.
W beam effective length |
4000/3000/2000mm*310mm*85mm or customized |
Three beam effective length |
4000/3000/2000mm*506mm*85mm or customized |
Material |
Q235B, S235JR, SS400, A36, Fe410 |
Base metal nominal thickness |
3mm, 4mm or customized |
Guardrail round post |
Dia114mm*4.5mm *L, Dia140mm* 4.5mm *L, |
Guardrail square post |
Square 130mm*6.0mm* L |
Surface Treatment |
Hot dip galvanized |
Zinc coating thickness |
Average 600g/㎡, 84μm, or customized |
Standards |
GB/T31439.1; GB/T31439.2;GB/T18226 |