Shandong Decho Building Materials Technology Co., Ltd
Focus on high standard coated coils
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Structural Frame used G90=Z275g zinc coating Galvanised Steel Coils with Zero spangle surface
Zero spangle Galvanized Steel Sheet in Coils Introductions
Zero Spangle Galvanized Steel : In hot dip galvanising, only a certain amount of aluminium is added to the zinc solution and no lead-free, antimony or tin is added to produce a non-bright product.
Hardness: soft (normal), hard, full hard
Zinc coating: 30-275 G /M², or on request
Zinc pattern: large zinc pattern, small zinc pattern, no zinc pattern
Surface finish: fingerprint resistant, chromate, oiled, unoiled
Steel Grade:Dx51D,Dx52D,Dx53D,DX54D,S220GD,S250GD,S280GD,S350GD,S350GD,S550GD； SGCC,SGHC,SGCH,SGH340,SGH400,SGH440,SGH490,SGH540,SGCD1,SGCD2,SGCD3,SGC340,SGC340,SGC490,SGC570; SQ CR22(230),SQ CR22(255),SQ CR40(275),SQ CR50(340),SQ CR80(550),CQ,FS,DDS,EDDS,SQ CR33(230),SQ CR37(255), SQCR40(275),SQ CR50(340),SQ CR80(550);
| Usage | Steel Grade | Yield Strength(MPa) ≥ | Tensile Strength(MPa) ≥ | Elongation at Brake A80mm % ≥ | Elongation at BrakeA50mm % ≥ |
| Structural usage | S250GD+AZ | 250 | 330 | 19 | / |
| S300GD+AZ | 300 | 380 | 18 | / | |
| S350GD+AZ | 350 | 420 | 16 | / | |
| S450GD+AZ | 450 | 480 | 15 | / | |
| S550GD+AZ | 550 | 550 | / | 2 |
Influence of Plating Weight (Thickness) on Corrosion Resistance
The weight of the coating is the most important guarantee of corrosion resistance. The greater the thickness of the coating, the better the corrosion resistance, which has been proved by many accelerated tests and exposure tests. The thickness of the galvanised layer usually refers to the thickness of both sides, under normal circumstances, the commonly used galvanised layer on the market are double-sided equal thickness hot-dip galvanised.
Applications-----Light Steel Structure Villa
Advantages: standardised design, environmentally friendly building materials can be recycled, good noise reduction and anti-seismic performance, is the focus of China's current research and promotion of the direction of the convenience of life, the formation of less pollution to the environment, lightweight steel structure and gypsum surface of the combination of the building materials to greatly reduce the construction of the waste of materials and pollution, and greatly expanding the use of the residential area, to bring great convenience to life. Short labour cycle, light steel technicians standard construction, operation streamlining, reduce construction costs.