Galvanized Steel Guardrails

Author:highwayguardrail 2023-03-27 16:48:29 137 0 0

We supply galvanized guard rails for highways projects in Germany, India, Cyprus and other countries.

Galvanized steel guard rails include following elements, with technical specification and applicable standards:

Steel W - beam:
Steel W – beam, 3.81m length between post centres, Norminal thickness 2.7mm, per standard BS 970.080.40

Steel bolt and nut with washer for steel beam:

Steel bolt nut with washer (18×30mm ) BS 729

Steel U post:
Steel U - post (120×800mm, length 1.65m, norminal thickness6.35mm)

Steel post bolt with nut and washer:
Steel post bolt with nut and washer (16×125mm) BS 729

Steel U spacer:
Steel U spacer 75×60mm, length 0.31m, nominal thickness 2.5mm

Steel plate:
Steel plate (100×45mm, thickness 4mm)

Steel fish plate (End bit):
Fish plate (End bit) 470×81mm, Length 0.55m, nominal thickness 2.7mm, per standard BS 970.080.40

Galvanized Steel Guard Rails, supplied with Parts and Accessories for complete systems


Steel Highway Guardrails, Hot-Dip Galvanized Finish, AASHTO M180

Steel guard rails
Steel poles 1.5 m
Steel poles 2m
Screw fasteners: Size 16χ30

Specification:
Steel guard rails, flat striking force N2 according to the standard EN 1317-1, EN 1317-2 & EN 1317-5

Installation:
Height from the ground surface to top part of the guard rail should be 0.75+/- 0.02m.
Depth of the installation is more than 1 m.

Materials of the steel guard rails
Steel parts: beams, poles, washers and nuts according to the standards as below:
Testing on the steel EN 10025
Steel plates 30mm EN 10025
Nuts and washers EN 20898-1, EN 3740

Technical specification of the horizontal guard rails, poles, screws and nuts
Type and the shape of the steel guard rails have a double denting, w shape.
Guard rails & parts made according to ASSHTO M270.
Galvanizing of the steel guard rails and poles according to ASTM A123.
Galvanizing surface according to the requirements of the paragraph 9 of AASHTO M180. Zinc coating according to paragraph 6 of AASHTO M 180.
The screws and nuts according to the specification of AASHTO 180.

Steel for making all the parts of the guard rails meet fully AASHTO 180 I Class A, the pole meeting AASHTO M270.

Hot Dip Galvanized finish:
Galvanizing according to ASTM A123
Galvanized after all the cuttings & other openings on the steel guard rails are processed.
Steel guard rails should be made accordingly to the standard paragraph 9 of AASHTO M180l, the quality of the steel should be according to paragraph no. 6 of AASHTO M180.

Standard types we follow in manufacture galvanized steel guard railing:
1. Type 1. Hot dip galvanized 550g/squre m (40 u)
2. Type 2. Hot dip galvanized 1100g/squre m (80 u)
3. Type 3. Hot dip galvanized 1200g/squre m (85 u)
Base metal types:
1. ClassA-1: 2.67mm base metal nominal thickness, steel Grade Q235(equivalent to S235 JR according to DIN EN10025 and Gr.D accoring to ASTM A 283 M)
2. ClsaaA-2:2.67mm base metal nominal thickness, steel Grade Q345(equivalent to S355 JR according to DIN EN 10025 1994 and Gr. 50 345 according to ASTM A 529 M) .

Steel Guard Rails can be both galv. and plastic spray coated:

Steel Highway Guardrails with PVC Coated W Beam

Galv.Highway Guardrails General Applied Information
Normal Sizes:
L:3200/3810/4000/4300/4320× W:306/310/312/380X
Height : 80/82/83/85× Thickness :2.75/3/4mm. 
Available in different sizes.

Porfile: W-beam, Three-beam.

Surface Treatment Options:
Hot dipped galvanized or plastic sprayed coating

Guardrails and Systems conforming to following Standards:
AASHTO M180(Corrugated Sheet Steel Beams For Highway Guardrail - USA)
RAL RG620 (German) 
Guard Rails conforming to other standards and customized dimensions can be supplied.

Base Steel
Grade Q235B (equivalent to S235JR according to DIN EN 10025 and Gr. Daccording to ASTM A283M) 
Q345 (S355JR / ASTM A529M 1994).

Hot Deep Zinc Coating Galvanized (Double Sides):
Three grades
550g/m2 (40µ) 
1100 g/m2 (80µ) 
1200 g/m2 (85µ)
Per customer request.

Features of Galvanized Guardrail
Excellent corrosion resistance
Good impact resistance
Economic cost
Simple structure
Easy installation and replacement
Higher security railing system solution
Environmental friendly material can be recycled
Multi design

Components and parts for Galvanized Guard Rails:
Posts, Galv.
Spacer (C, U and Sigma types etc) , Gal.
Fasteners, Bolts&Nuts, Galv.
Terminal sections
Reflectors


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