30 Gauge Galvanized Steel Sheet JIS Hot Rolled Non Chromated Oil

Brand Name:HUYI-GI
Certification:SGS , BV , ISO9001
Model Number:G550 , G450 ,G300
Minimum Order Quantity:25tons each thickness
Delivery Time:15-35days
Payment Terms:L/C, D/P, T/T
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Location: Shanghai Shanghai China
Address: Room704-2,A7 building,No.1688,North Guoquan Road,Yangpu District,Shanghai,China.
Supplier`s last login times: within 34 hours
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Product Details

Hot rolled Non-Chromated oil 30 guage 12ft width Galvanised steel sheet JIS with good price


Introduction of galvanised steel sheet :


Galvanized steel sheet is one of the most widely used products, used extensively in the building sector, automotive, agricultural and other areas where the steel needs to be protected from corrosion.


Description of galvanised steel sheet :


Product Nametop quality and nice price cold rolled galvanized steel sheet
Lengthor as required
WidthAs requested
Thicknessas required
StandardJIS, DIN, ASTM, JIS G3463-2006, JIS G3458-2005, DIN 1626,
TechniqueHot rolled / cold rolled
Surface Treatmentgalvanized
Thickness Tolerance±0.01mm
Material
A53/A135/A106/A283
ApplicationIt is widely used in high temperature applications, medical devices, building materials, chemistry, food industry, agriculture, ship components.
It also applies to food, beverage packaging, kitchen supplies, trains, aircraft, conveyor belts, vehicles, bolts, nuts, springs, and screen.
MOQ1 container
Shipment TimeWithin 15-20 workdays after receiving deposit or L/C
Export PackingWaterproof paper, and steel strip packed.
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity250,000 tons/year

Details of galvanised steel sheet :


Total CoatedArea Per Ton% Area more in Galvalume® over Galvanised
Sheet ThicknessGalvalume® CoatedG-90 Galvanized
mmSq.meterSq.meter%
0.34063846
0.383203065
0.641881833
11161142

Characteristics of galvanised steel sheet :


SpangleSurface TreatmentOilingSurface RoughnessCold TreatmentEdge Condition
Regular / Minimized / SuppressedChromated Cr+6 / Chromated
Cr+3 (as per ROHS norms) /
Acrylic coating AFP (Cr+6)
Oiled / Unoiled0.6 - 2.0 microns
(for Skin Passed)
Non Stretch Leveled / Stretch Leveled / Skin PassedSlit / Mill edge

Advantage of galvanised steel sheet :


  • Strong corrosion resistance, 3 times that of galvanized steel coil.
  • The density of 55% aluminum is smaller than the density of zinc. When the weight is the same and the thickness of the plating layer is the same, the area of the galvalume steel sheet is 3% or larger than that of the galvanized steel sheet.

Surface Treatment Of galvanised steel sheet :


ItemClassificationSymbol
Coating typeAl-Zn alloyAZ
Surface finishRegular spangleR
Minimized spangleM
Skin passedS
Surface treatmentChromate passivatedc
Non-chromate passivatedC5
Chromate passivated + oilingCO
Non-chromate passivated+oilingCO5
Anti-fingerprintN
Non-chromate anti-fingerprintN5
Non-chromate high weather resistance anti-fingerprintNW
Oiling0
No treatmentU

Detailed Steps Of The galvanised steel sheet Processing


Step 1:


Pre-treatment: After the cold-rolled coil arrives in the galvalume workshop, after passing through the uncoiler, through the degreasing section and the reduction furnace, the steel coil is cleaned and its components are reduced to the extent that it can be galvanized.

Step 2:


Central section: The most critical technology is this step. After passing through the zinc pot, a layer of zinc layer is plated on the surface of the steel plate. After coming out of the zinc pot, it is cooled and shaped by the cooling tower.

Step 3:


Post-processing: The steel plate finally comes to the post-processing stage after various processes. After finishing, straightening and passivation, and finally coiling.


Galvanised steel sheet Features:

  • Thermal Reflection:

People use it as material for heat-insulation for its thermal reflectivity as high as twice the galvanized steel sheet.

  • Heat-resistance:

The aluzinc steel sheet could bear above 300℃ high temperature with its good performance in heat-resistance, quite similar to the aluminized steel sheet’s performance in oxidation-resistance under high temperature. It is often used for chimney pipe, oven, illominator, and fluorescent lamp cover.

  • Corrosive-resistance performance:

The essential of galvalume steel coil’s corrosive-resistance lies at aluminium’s protective property. Once the zinc come under abrasion, the aluminium would form a layer of densified oxidized aluminium, preventing the interior from further corrosion.

  • Economical:

The density of 55%AL-Zn is smaller than Zn, therefore, with the same weight and thickness of coating, the galvalume steel sheet is 3% larger in area than that of galvanized steel sheet.

  • Easily painted:

There is perfect adhesiveness between galvalume sheet and paint, saving the process of pre-treatment and weathering for painting work.

The coating material on the galvalume steel sheet is outstanding in its adhesiveness, which could be directly tarring on the advertising board and commonly used board with no pre-treatment such as weathering process.

  • The galvalume steel sheet’s surface is luxury in silver colored appearance.
  • Galvalume steel sheet and galvanized steel sheet are similar in performance of processability and painting.

Here are the pictures of our Mill as reference :



FAQ:


Q1:What are your company's main products?


A2: Our main products are Carbon Steel Coil/Sheet,Galvanized Steel Coil/Sheet,Stainless Steel Coil/Sheet, round/square pipe, bar, channel, perforated shseet etc.


Q3: How do you control quality?


A3: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.


Q4:What are the advantages of your company?


A4: We have many professionals, technical personnel, more competitive prices and best after-dales service than other steel companies.


Q5: How to get samples?


A5:FREE samples are available for your checking and testing.

China 30 Gauge Galvanized Steel Sheet JIS Hot Rolled Non Chromated Oil supplier

30 Gauge Galvanized Steel Sheet JIS Hot Rolled Non Chromated Oil

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