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SGC570 Z275 Regular Spangle Galvanized Steel Strips For Building Frame And Trusses

Categories Galvanized Steel Coil
Brand Name: DBM
Model Number: SGC570/G550/SS80
Certification: ISO, BV, SGS, QC,
Place of Origin: CHINA
MOQ: 20 TONS
Price: 750 USD/TON
Payment Terms: L/C, T/T
Supply Ability: 800 tons/day
Delivery Time: 30 DAYS
Packaging Details: STANDARD EXPORT PACKAGE WITH WOODEN PALLET
Surface Treatment: Regular Spangle Galvanized
Zinc: 150g-275g
Surface Finish: Chromated/Unoiled/Dry/Regular Spangle
Coil Weght: 2-8ton
Treatment: Galvanized
Shape: Steel Coil,Steel Strips,Flat Sheet
Tensile Strength: 550-600Mpa
Tolerance Of Thickness: +/- 0.02MM
Surface: Bright Finish
Keyword: Building Frames and Trusses
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SGC570 Z275 Regular Spangle Galvanized Steel Strips For Building Frame And Trusses

SGC570 Z275 Regular Spangle Galvanized Steel Strips Used For Building Frame And Trusses


Hot-dip galvanized steel coil is a type of steel that has been coated with a layer of zinc through a process called hot-dip galvanizing. This process involves immersing steel sheets or coils into a bath of molten zinc at temperatures typically ranging from 450°C to 500°C. The molten zinc reacts with the steel to form a corrosion-resistant, galvanized coating, which helps protect the steel from rust, corrosion, and environmental damage.


Hot-dip galvanized steel coils are widely used in various industries, including construction, automotive, home appliances, and infrastructure, due to their excellent corrosion resistance, strength, and longevity. The process of galvanizing adds a layer of zinc to the surface of the steel, which acts as a sacrificial barrier, corroding before the steel itself.

Applications of Hot-Dip Galvanized Steel Coils

Hot-dip galvanized steel coils are used in a wide range of industries due to their corrosion resistance, strength, and ease of fabrication. Some common applications include:

  • Construction: Roofing, cladding, steel framing, and structural components.
  • Automotive: Body panels, bumpers, exhaust systems.
  • Home Appliances: Washing machines, refrigerators, air conditioners, and ovens.
  • Infrastructure: Fencing, guardrails, street signs, and utility poles.
  • Agriculture: Silos, irrigation systems, and farm buildings.


In the building industry, trusses are structural frameworks used to support roofs, floors, and other load-bearing elements of a building. They are typically made from wood, steel, or concrete and are designed to transfer loads over large spans, offering both strength and efficiency in construction. Trusses are engineered to distribute loads evenly and resist forces such as tension, compression, and shear.


Uses of Trusses:

  1. Roof Support:

    • Trusses are primarily used to support the roof structure. They provide a framework for the roof covering, transferring the weight of the roof to the walls or columns of the building.

  2. Floor Support:

    • In some cases, trusses are used to support floor systems, especially in large commercial or industrial buildings, where long spans without interior support columns are needed.

  3. Bridges:

    • Trusses are often used in the construction of bridges, especially for railway and highway bridges, due to their ability to distribute loads over long spans efficiently.

  4. Large Open Spaces:

    • Trusses are used in the construction of large, open spaces such as auditoriums, gymnasiums, and warehouses, where the ability to support heavy loads and clear large spaces without columns is essential.

  5. Supporting Mezzanines:

    • In buildings with multiple levels or mezzanines, trusses can be used to support the upper floors or the ceiling of lower levels.

Conclusion

Hot-dip galvanized steel coils are an essential material in various industries, offering superior corrosion resistance, durability, and formability. They are manufactured to meet a variety of international standards, including ASTM A123, ISO 1461, JIS G3302, and EN 10346, with specifications varying depending on the region and intended use. The common coating weights typically range from Z60 to Z275, with different surface finishes and mechanical properties suited to specific applications such as construction, automotive, and home appliances.



IndexRegular spangleZero spangle
Galvanized Steel Coil/SheetsGalvanized Steel Coil/Sheets
Thickness0.13-2.50mm0.20-2.0mm
Width600~1500mm600~1500mm
Zinc CoatingZ30~Z400 g/㎡Z30~Z275 g/㎡
Surface TreatmentPassivated / Chromated 6+,3+, Free;Skin passed, Chromated 6+, 3+, Free
OiledOiled, AFP (anti-finger print)
Steel GradeDX51D/52D/53D/DX51D/52D/53D/
S250GD/280GD/350GD/550GDS250GD/280GD/350GD/550GD
ASTM A653M, SS255-SS550ASTM A653M, SS255-SS550
JIS G3302-SGCC, SGCH (Full hard-G550)JIS G3302-SGCC, SGCH (Full hard-G550)
Coil I.D.508 / 610 mm508 / 610 mm
Coil weight2 ~ 20 tons2 ~ 20 tons
PackagingStandard export packing ( Eye to Side)
Vertical Packing ( Eye to Sky) with wooden pallet
Horizontal Packing ( Eye to Side) with wooden pallet
MOQ.16 tons16 tons
Loading portTianjin / Qingdao / Rizhao port 
UsagePurlins, light steel frame, ventilation duct, downpipe, round pipe, square pipe, roof panel, corrugated sheets.Coated steel coil production, household appliances ( pre-coated metal PCM)
Roof panel, corrugated sheets
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