Road Construction Equipment

Insulated Galvanized Steel for W-beam Guardrail

     Thickness: 0.6mm - 1.6mm


     Width: 600mm - 1500mm


     Zinc coating weight: g60, g90

•Grade: SGCC, DX51D, Q195, all according to the customer's request 
•Standard: JIS G3302 1998, ASTM A653M/A924M 2004, etc 
•Thickness: 0.6mm - 1.6mm, all available. 
•Width: 600mm - 1500mm, all available.
•Gauge Size: 18, 20, 22, 24, 26

•Zinc coating weight: g60, g90

Due to its superior quality and longevity, Insulated Galvanized steel be used in the following building and architectural applications.
•Roll formed panels (industrial of commercial buildings)

•Cladding on standard building materials

Different Types of Galvanized Steel Sheet:
We are able to make galvanized sheet to further processsing, such as embossed sheet metal, checker steel sheet, perforated steel metal, corrugated roof sheet, and prepainted galvanized steel sheet. We provide various patterns for those different types. Please check the metal sheet types's table below. All of our metal sheet types are custom-manfactureed.

Shanghai Metal supplies a complete system for highway security and construction uses. We supply galvanized steel guard rails used for traffic 

control in highways. Typical forms of beams are W beam and Thrie Beams. The guardrail two wave and three wava panels can be used 

together with Highway Noise Barrier System, or the metal security fencing system. 

Work Principle: 
Steel beam guardrails are designed to ensure minimum damage to the vehicle and its occupants. The waved metal panels can absorb 

maximum energy by flattening out laterally and restraining the vehicles from veering over during the collision. Once accidents happen, the 

guardrails will help prevents the vehicle from skidding back onto the carriageway by controlling exit angles through gradual deceleration and 

effective redirection of the vehicle back on to the road.

a. Enables quick repairs in case of accidents.
b. Complete road safety is maintained along the entire length of guardrail.
c. All components are galvanized and steel as a countermeasure against corrosion and the elements for a longer service life.
d. OEM or ODM service offered
e. Post,spacer,washer,bolts and reflector also can supply.
f. Strong absorption collision energy capacity

Railing Fixing Parts
a. Posts (C posts, U posts, H posts, Sigma posts, Flange posts, Round posts, etc.)
b. Other Accessories (Spacers, Terminal End, Guardrail Reflector, Flat Plate, Bolts, Nuts and Washers, etc.)

Technical Information:
Profile: W beam or Three beam Steel Highway Guardrail
Normal Size
W Beam: 3300/4130/4320×306/310/312×80/83/85×2.55/2.67/2.75/3/4mm

Thrie Beam: 3300/4130/4320×506×80/83/85×2.55/2.67/2.75/3/4mm

Available in different sizes as per your request
Materials: Steel Grade Q235B ( S235JR)
Steel Grade Q345 (S355JR / ASTM A529M 1994)
Or other Steel Grades

Surface treatment
Hot Dipped Galvanized (or Powder Coated available)
Thickness of galvanized (double sides)
550 (80µ) / 610 (85µ) / 1100 (160µ) / 1200 g/m2 (170µ) or as per your request.
Technology: Cold Rolled
Applicable standards: JT/T281-2007(China), AASHTO M-180(USA), RAL-RG620 (German) Or any other International Standards.
ISO9001:2000, ISO14000, SGS, CE, etc.
Other special specification as per client's requirement or drawings.

SMC Standard Sheet Metal Gauge:

Packaging for Galvanized Steel Sheet:

Shanghai Metal Products are packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.

What is Galvanized Steel?

There are two typical galvanizing ways to obtain a zinc coating: hot dip galvanizing and electrogalvanizing. Hot dip galvanizing is the process that steel is immersed into molten zinc bath to get a zinc coating surface. This not only helps protect steel from rust and corrosion, but also gives the steel a shiny attractive appearance. Electrogalvanizing is the process that uses electrolysis to coat the steel with zinc, which is neither cost-effective nor environmentally friendly. It is hardly to find electrogalvanized steel in our lives nowadays.

What are advantages of galvanized steel?

Because of permanently and successive zinc/iron alloy layers, galvanized steel offers many benefits than traditional steels. 

>>Corrosion Resistance: the zinc coating surface protects the base steel not only by providing barrier to corrosion elements, but also by the sacrificial nature of the coating. Galvanized steel often remains in working order with little maintenance for 40 years or more.

>>Excellent Surface Appearance

>>Formability: it can be simply bend to parts with deep drawing requirements.

>>Paintability: it can be painted with different colors.

>>Weldability: it is accepted various welding practices.

What are disadvantages of galvanized steel?

In spite of many benefits, galvanized steel is not always an ideal choice. Galvanized steel cannot be used underground without properly covered, which can be inconvenient for many jobs.

Where do we use galvanized steel?

It is primarily used in the construction industry, such as roofing, wall cladding, and support beams. It is also used in the automotive industry, due to its enhanced paintability, weldability and corrosion resistance. Moreover, it is an essential material for white goods application, such as refrigerators, air-conditioners, washers, microwaves, vending machines and audio visual systems.

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