Hot-dip Zinc Coating Steel Building Roof Sheets in Coil Prime Quality

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
10000 m.t./month

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1.Structure of Hot-Dip Galvanized Steel Sheet Description

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.

2.Main Features of the Hot-Dip Galvanized Steel Sheet

• Excellent process capability

• Smooth and flat surface

• Workability, durability 

• Excellent anticorrosive property

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images

 Hot-dip Zinc Coating Steel Building Roof  Sheets in Coil Prime Quality

 4.Hot-Dip Galvanized Steel Sheet Specification

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.1mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

Packing: Standard seaworthy export package

Technology test results:

Processability

Yield strength

Tensile strength

Elongation %

180°cold-bending

Common PV

-

270-500

-

d=0,intact,no zinc removal

Mechanical interlocking JY

-

270-500

-

d=0,intact,no zinc removal

Structure JG

>=240

>=370

>=18

d=0,intact,no zinc removal

Deep drawn SC

-

270-380

>=30

d=0,intact,no zinc removal

EDDQ SC

-

270-380

>=30

d=0,intact,no zinc removal

 

 5.FAQ of Hot-Dip Galvanized Steel Sheet 

We have organized several common questions for our clientsmay help you sincerely: 

1.How about your company

A world class manufacturer & supplier of castings forging in carbon steel and alloy steelis one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

2.How to guarantee the quality of the products

We have established the international advanced quality management systemevery link from raw material to final product we have strict quality testWe resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

3. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-30 days, but the shipment will depend on the vessel situation.

 

 

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Q:What kind of steel plate is HIC?
Is suitable for use in acidic environment, hydrogen sulfide corrosion resistance of the steel plate. Also known as hydrogen or hydrogen resistant steel, generally pressure vessel or pipe steel.
Q:What is hot and cold rolled steel plate? How to distinguish? What high hardness? Which will produce noisy eye?
By definition, ingot or billet is difficult to deform under normal temperature, easy processing, generally heated to 1100 to 1250 DEG C for rolling, the rolling process of hot rolled steel rolling. Most are called hot method. But because the surface under high temperature steel is easy to produce iron oxide, the surface roughness of hot rolled steel, size fluctuation so large, smooth surface, precise size, good mechanical properties of the hot rolled steel, semi-finished or finished products and raw materials for the production of cold rolling method. Under normal temperature, generally understood as cold, from the metal science point of view, the boundaries of cold rolling and hot rolling should be differentiated by the recrystallization temperature is lower than rolling recrystallization. The temperature is higher than the recrystallization temperature of cold rolling, rolling for hot rolled steel. The recrystallization temperature is 450 ~ 600 degrees. The difference: the simple point that 1, cold rolled plate surface has a certain gloss hand feels smooth, Similar to that used for drinking water is very common, such as hot rolled.2 steel cup without pickling treatment, is on the market and many are similar to ordinary steel plate surface, rusty surface is red, the surface of the rusty purple black (iron oxide).The performance advantages of cold rolled plate and strip is: 1, high precision, cold rolled strip thickness not more than 0.01~0.03mm.2, thinner, cold rolled steel strip rolling thickness 0.001mm hot rolling; now the thin can reach 0.78mm.3, the surface quality is more superior, cold rolled steel plate can even produce mirror surface; and the surface of hot rolled plate there are defects such as pitting of iron oxide,.4, cold rolled plate can be adjusted according to the running properties such as tensile strength and technological properties such as stamping performance requirements of the user.
Q:Who knows the wire width of the steel mesh?
Steel wire should be called stem stem.
Q:Why can steel HPB300, steel plate without Q300, steel structure manuscript review, but also continued the Q235, why not improve it?
Carbon steel according to the steel yield strength is divided into 5 grades: Q195, Q215, Q235, Q255 and Q275 of each grade because the quality is divided into A, B, C, D grade, with a maximum of four kinds, some only one; this is just plain carbon steel, the price is cheap, generally not heat treatment. Only quality carbon steel has the value of heat treatment.
Q:Is galvanized steel plate fire-resistant?
Galvanized steel is mainly antiseptic, and he has no fire protection
Q:How much is the rent for a day of Larson steel sheet pile
As a kind of new building materials in the Larson steel sheet pile cofferdam, bridge construction, large pipeline, temporary ditch excavation for retaining, retaining water and sand retaining wall; in the wharf, unloading field wall, retaining wall, Levee Revetment, play an important role in engineering.
Q:What's the good way to connect two Q235 steel bolts? Why?
The two scheme should be avoided by 1 reasons, is not easy to locate; 2, the mechanical strength is lower than that of Q235 steel plate bolt, bolt if 8.8 or 10.9 has no significance; 3, time is in low efficiency and tap plate fees, high production cost. Only when the space of the tightening nut is not enough can the connection mode of the steel plate upside screw thread be adopted.
Q:Will the plating steel be rusty? Will it rust when touching the water?
Plating (Electroplating) process is to use the principle of electrolysis plating on a thin layer of metal or alloy in some metal surface, is the process of making the surface of metal or other material parts attached to a layer of metal film by electrolysis so as to prevent metal oxide (rust), improve wear resistance, electrical conductivity, reflection, corrosion resistance (copper sulfate) and improves the appearance effect. The outer layers of many coins are also electroplated.
Q:What is AO steel plate?
The steel plate can be placed in the soft tissue without the need to remove periosteum and reduce the damage to the bone. The steel plate does not need to be completely shaped with the backbone, and it is feasible for minimally invasive percutaneous plate fixation
Q:What is a die steel plate?
The profiled sheet steel plate has the advantages of easy processing, light weight, fast installation, simple operation, and the tedious process of removing and dismantling the formwork.

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