Shandong Safebuild Traffic Facilities Co., Ltd. |
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American AASHTO-M180 Technical Standard Thrie-beam highway
guardrail | ||||||||
TYPE | Overall Length (mm) | Effection Length (mm) | Norminal Uncoated Thickness (mm) | |||||
TYPEⅠ | 4130 | 3810 | 2.67-4.0 | |||||
TYPE Ⅱ | 4320 | 4000 | 2.67-4.0 | |||||
MECHANICAL PROPERTIES | ◆Material grade: S355JR ◆Yield Point, minimum, 345Mpa (50000psi); ◆Tensile Strength, minimum 483Mpa (70000psi); and ◆Elongation, in 50mm (2 in.),minimum, 12 percent. | |||||||
NOTES | ●Thickness of Zinc coating: 550g/㎡ or1100g/㎡; ●The beams may galvantzed before or after fabrication; ●We can customize the length and thickness according to customer requirements. |