Galvalume Steel Coils for Building material

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

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Product Description:

Standard:

AISI,ASTM,GB,JIS

Grade:

CGCC CGCH

Thickness:

0.17-0.6mm

Place of Origin:

 China (Mainland)

Brand Name:


Model Number:

GL-001

Type:

Steel Coil

Technique:

Cold Rolled

Surface Treatment:

Coated

Application:

Container Plate

Special Use:

High-strength Steel Plate

Width:

750-1250mm

Length:

C

certificate:

SGS,BV,ISO

usage:

building roofing material

coil weight:

3-7 ton

coil ID:

508mm

base metal:

hot rolled steel coil

Packaging & Delivery

Packaging Detail:mills standard export seaworthy packing or according to the customers' requirements
Delivery Detail:30days

Galvalume Steel Coils/Coil

Product advantages:

A.high strength

B.strong soundess

C.well rainproof performance

D.continuous rolling

E.good corrosion resistance

F.easy to install and remove


Quality guarantee:

our company  attaches importance to quality management and assurance,it is equipped with sound testing means and has passed the certification of ISO9001 Quality Management System and SGS,BV verification


Deiverse products

With world high-quality galvanized,aluminum and zinc coated and cold-rolled steel coils as base materials.



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Q:Why low carbon steel have poor magnetic properties?
The composition you mention is not a low carbon steel.The carbon and manganese content are high enough to mean that the crystal grain size will be small. A very large grain size is needed in steels for transformers,motors etc.The large grain size and lack of carbides in low silicon steels for magnetic purposes allows the easy movement of magnetic domain walls.Transformer steels typically have a carbon content of about 0.003% and 3.5%Si with the phosphorus and sulphur at a tenth of the levels you mention.The high Si content increases the electrical resistivity of the magnetic core and reduces the power loss from eddy currents(the core metal has voltages generated in it by the changing magnetic fields) and the power lost in eddy currents heats up a transformers core so it needs extra cooling;the loss is inversely proportional to the resistivity and 3.5%Si increases resistivity of iron by a very large amount.The presence of high silicon with ultra low carbon and manganese level allows the soft magnetic steels to be annealed at very high temperatures(850 to 1100deg C)without a phase change so that the crystals have 10,000 to 10,000,000 times the volume of the crystals in heat-treatable (Just)steel you mention.Fine for playing with and demonstrating electromagnetism but not as electrical engineering feedstuff.
Q:Is steel lighter than iron?
Steel and iron weight about the same, or more correctly, have about the same density. Steel is stronger, which allows structures to be built with less material, and thus lighter.
Q:How did the planes break the steel?
I saw a one-hour program about this on PBS a couple of years ago. The buildings were constructed with the concrete-clad steel supporting columns at the center of the buildings, with a relatively thin lattice of steel struts along the outer wall. When the planes hit, they sheered through the thin steel struts easily by sheer momentum, while, at the same time, the thin steel stripped off the wings. The bodies of the planes got as far as the supporting columns in the center of the buildings, but were stopped there. The heaviest, densest pieces, the engines, went completely through the buildings and popped out the other side. It's important to understand that even light materials can cut through metal, if the light material is going fast enough. I saw this first hand, when I was in the Navy and stationed on board ship. We had a helicopter crash on our flight deck during heavy weather. The blades were made of light, carbon-composite material, but they were going so fast that they cut through the aluminum deck. I still have photos of that damage.
Q:Lead vs steel chokes?
To add to this, Screw-In tubes in older guns can make removal a challenge. I destroyed a FULL lead tube removing it for a friend from his NOVA.
Q:What makes Steel stronger than Iron?
Cast Iron' is typically brittle, while 'Maleable Iron' has a small percentage of carbon which allows it to be hammered and formed. Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron. Steel is a crystalline structure of iron molecules interspersed with carbon molecules. This is properly known as cementite. The hardness and malleability of steel depends not only on the carbon content, but on how the carbon and iron molecules are arranged to one another. Internal stresses in the steel's crystalline structure will increase or decrease depending on the temperature it is subjected to and the rate at which molten steel is cooled. This 'tempering' can increase the strength of the steel at the expense of brittleness.
Q:When does steel start to Warp?
It depends upon the composition of steel. Carbon steel, which does not have many alloying elements, softens around 1200C while with alloying elements, this transition temperature either drops or raises depending upon what is added. Higher carbon makes this temperature drop. This is a very important question for forging since if a lower temperature is used, forging won't be easy and at higher than softening temperature, it is not easy to handle. The temperature at which steel begins to soften is, in general, much above what the metallurgists call AC1 or AC3 temperature.
Q:how to understand the chemistry of a metal.. especially steel.. from their names...?
For steels with a four number code like 1020, 4140 ect the first two digits are the alloying information. I think you need to memorise those. 10 steels are plain carbon steel with no alloying. 41 steels are chrome-molly. The third and forth digits are the carbon content. 1020 is 0.2% Carbon, 4140 is 0.4% carbon. I don't know if there is a system to stainless steels.
Q:British Steel Logo?
Bristish Steel...ROCKS!!! Ebay is a good suggestion but if its something custom like that you could always bring in a drawing or picture to a jeweler and they can source it for you ;) I did something similar and the jeweler actually made it custom for me.... just a suggestion :) Good Luck!
Q:Arc welding: DC needed for stainless steel?
Stick Welding Stainless Steel
Q:How do I remove rust from a steel saw?
I would suggest rust removal by electrolysis. Search youtube for that. It probably will not affect the metal but there are no guarantees. I would run a test on another metal. Also this process can be dangerous because hydrogen gas is a by-product - remember not to smoke or be cooking nearby! The Easy way is with BlackStar Rust Remover. It will turn the metal black and convert the rust to metal which can then be painted or left black.

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