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Introduction to welding mesh
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Welded steel wire mesh made from low carbon steel wire rods, which undergo a cold-rolling and straightening process, and then arranged vertically in proper spacing in the welding equipment both at line wires and at cross wires ,and joint together by means of electric resistance spot-welding(also directly welded with hot-rolled wire rods ), turning into steel fabric mesh sheets.
The welded steel mesh has the following advantages over the reinforcing steel bar bundled by hand:
1.Insurance of Project Quality: great hardness, good elasticity, uniformity spacing, high welding strength, hard to deform by trample, easy to control the protect coat of concrete.
2.Improving working efficiency: can save workers 50% and save construction time by 50%-70%.
3.Enhancement of Anti-Cracking of concrete: crack reduction by more than 75%.
4.Saving wire rods: can save wire rods by over than 25% the traditional bundled steel bar.
5.Cut-Down of Cost: Decrease project cost.
Properties of products:
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Item
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HRB335（Hot-rolled）
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HRB400（Hot-rolled）
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CRB550（Cold-rolled）
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Tensile strength（Mpa）
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≥490
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≥570
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≥550
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Yield strength（Mpa）
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≥335
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≥400
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≥500
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Elongation（%）
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≥16
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≥14
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≥8
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Designed strength（N/mm2）
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300
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360
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360
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Shearing force（N）
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≥150×As
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≥150×As
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≥150×As
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Elasticity Value（N/mm2）
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2.0×105
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2.0×105
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2.0×105
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Technocal Standard
《Welded steel fabric for the reinforcement of concrete》GB/T1499.3-2002
《Technical Specification for Concrete Structures Reinforced with Welded Steel Fabric》JGJ/T114-2003.J276-2003
《Hot rolled ribbed steel bars for the reinforcement of concrete》GB1499-98
《Cold rolled ribbed steel bars》GB13788-9
Scope of application:
Welded mesh can be used in the multi-storey and high commercial building, airplane runway, road, and tunnel. Bridge, concrete pipes, waterdyke, dock, storage and sewage farm and so on.
Type of products:
There are two types of mesh made by our company:
Stands mesh:
Line wire diameter (nominal) 4.0 - 14.0 mm
Cross wire diameter (nominal) 4.0 – 14.0 mm
Line wire spacing 100 / 150 / 200 /250/ 300 /350/ 400 mm
Cross wire spacing 100 / 150 / 200 / 300 / 400 mm
Other and larger cross wire spacing freely programmable
Wire mesh length 2000 - 6000 mm
Wire mesh width 2000 – 3300 mm
Non-Stands mesh:
Line wire diameter (nominal) 4.0 - 14.0 mm
Cross wire diameter (nominal) 4.0 – 14.0 mm
Line wire spacing min. 100 mm
larger line wire spacing in steps of 50 mm
Cross wire spacing min 25mm
above programmable in increments of 0.1 mm.
Wire mesh length: 2000 - 14000 mm
Wire mesh width: 1100 – 3300 mm
UAN can produce not only the mesh according to the national standard of 《Welded steel fabric for the reinforcement of concrete》GB/T1499.3-2002 but also the products compliance with the AS/NZS 4671:2001 (Australian and New Zealand standard), BS4483 (English standard), DIN488 (Germany standard), SIA 16211 S 550(Switzerland standard) and NFA35-016 (France standard) etc.
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