USA standard/AASHTO M180 guardrail
USA standard/AASHTO M180 guardrail
USA standard/AASHTO M180 series highway guardrails are manufactured
features of high durability and maximum strength to meet all requirements i
AASHTO M180-12 specification.
| 
			 W beam effective length  | 
			
			 3810/3000mm*310mm*83mm or customized  | 
		
| 
			 Thrie beam effective length  | 
			
			 3810/3000mm*510mm*83mm or customized  | 
		
| 
			 Material  | 
			
			 Q355, S355JR, A572 Gr. 50  | 
		
| 
			 Base metal nominal thickness  | 
			
			 2.67mm (A), 3.43mm (B) or customized  | 
		
| 
			 Surface Treatment  | 
			
			 Hot dip galvanized as per ASTM A653  | 
		
| 
			 
 Zinc coating thickness  | 
			
			 Type I: 550g/㎡,Type II: 1100g/㎡   | 
		
| 
			 H post  | 
			
			 W6*9, H13.5kg/m* L  | 
		
| 
			 U post  | 
			
			 U178*76*6mm* L, U150*75*5mm* L  | 
		
| 
			 Standards  | 
			
			 AASHTO M180, ASTM A653  |