Z21 BMP Prepainted Rolled Steel Coil for Construction

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100 m.t.
Supply Capability:
30000 m.t./month

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Structure of Z21 BMP Prepainted Rolled Steel Coil for Construction

 Z21 BMP Prepainted Rolled Steel Coil for Construction

Description of Z21 BMP Prepainted Rolled Steel Coil for Construction

1. Prepainted steel coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized or galvalume steel sheets. 
2. The base metals for prepainted steel coil consist of cold rolled, HDGI Steel, electro-galvanized and hot-dip alu-zinc coated steel. The finish coats of prepainted steel coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.
3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.
4. The color of the prepainted steel coil has a very wide selection, like orange, cream-colored, dark sky blue, sea blue, bright red, brick red, ivory white, porcelain blue, etc.
5. The prepainted steel coils can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.

 Z21 BMP Prepainted Rolled Steel Coil for Construction


Main Feature of Z21 BMP Prepainted Rolled Steel Coil for Construction

Galvanized steel sheet(include HDG and EG)
With the features of good corrosion resistance, the products are mainly used in automobile, home appliance, electronics, building and machinery manufacture industries, etc.

Precoated steel sheet
With the features of enviromental protection and good processablility, long lasting surface durability, rich in colors, the products are maily used in building, home appliance and furniture industries, etc.

Electrical steel sheet
Mainly used to manufacture generating equipment, locomotive, industrial motor and home appliance.


Applications of Z21 BMP PPGI Prepainted Rolled Steel Coil for Construction


Manufacture anticorrosion, industrial and civil architecture roof boarding, roof grille

Light industries

Home appliance's case, civil chimney, kitchen utensils

Auto industry

Corrosion resistant parts of cars


Food storage, meat and aquatic products' freezing and processing equipment


Equipments to store and transport materials, and packing implements

  Z21 BMP Prepainted Rolled Steel Coil for Construction


Specifications of Z21 BMP Prepainted Rolled Steel Coil for Construction


Z21BMP Prepainted Rolled Steel Coil for Construction

Material Grade

SGCC / SGCH  / DX51D+AZ, etc






Thickness: +/-0.02mm , Width:+/-2mm




Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume


Dried, Chromated, Unoiled


Regular spangle , small spangle, zero spangle


508MM 610MM

Coil weight


Export package

Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed


FAQ of Z21 BMP Prepainted Rolled Steel Coil for Construction

1.What's your MOQ?

25MT, it is for one container.

2.Do you have QC teams?

Yeah, sure, our QC team is very important, they will keep the quality control for our products.

3.Are the products tested before shipping?

Yes, all of our PPGI and GI was qualified before shipping. We test every batch every day.

4.What's your normal delivery time?

Our delivery time about 15-20days for standard sizes, if you have other requirements like hardness, quanity and width ,it is about 20-40days. But don't worry ,we also try our best for the delivery time ,because time longer and our cost is higher.


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Q:Steel Wool + 9V Battery Question...?
Steel Wool 9v Battery
Q:what kind of steel is my kabar made of?
I would get a 1095, serrated edge, tanto style, with either a good quality rubberized or bone handle.
Q:Are steel doors insulated?
Not all steel doors are. Its about 20* where i am and my steel door feel somewhat cold, but not very cold. Yours could not be? If you take the lock off the door and look inside the hole where the lock was you should see insulation inside your door.
Q:is magnetic steel hygenic to produce stainless steel utensils?
Magnetic steel rusts. That's why kitchenware is often made out of stainless. You can't turn magnetic steel into stainless, sorry. Metalurgy is a complicated subject, and is all about different alloys. It's far too involved to explain in a few paragraphs here, but no, they're not interchangeable in this case unless you want to produce kitchenware that rusts.
Q:crossbow hunting with 8mm steel balls?
An 8mm steel ball fired from a 150# crossbow is probably going to damage your crossbow. Crossbows shoot arrows (or bolts), NOT ball bearings and, furthermore, a 150# crossbow needs an arrow (or bolt) of about 450 grains in order to be efficient and operate without damaging itself. A 450 grain arrow will kill small game very well and out to a range of about 30 yards. Don't wind up like the guy below... EDIT: Racing Pace Stick - I stand corrected. There are, indeed, tacticool crossbows that shoot ball bearings and they all seem to come straight from Shandong Province, China. Note that these are not implements suited to hunting. Also note that if you shoot an 8mm steel ball out of a 150# draw compound crossbow that IS suitable for hunting, you are probably going to break it.
Q:Steel and Graphite shafts?
if you are a good player they say steel shaft is better. more consistent. I prefer graphite its lighter and I can flip my wrists easier.
Q:Are steel strings bad/hard for a beginner?
Steel strings are fine for a beginner. I learned to play on Steel strings and I have always preferred them to nylon strings.
Q:BMX Help, High Tensile steel VS chromo steel for cruising?
High tensile steel could mean almost anything. SAE 4130 Chrome-Moly steel is the de-facto standard for steel bikes frames. High tensile steel could actually mean the same thing since chrome-moly is classified as high strength steel. The strength of the frame depends as much on the quality of the welds and on the size/thickness of the tubing as much as anything else. I'd say what kind of steel you use makes only a minor difference. One reason you want to buy bikes from reputable name-brand companies is they tend to have strict quality controls, this is particularly important when it comes to welds. Welds are always the weakest part of any bike frame, don't let anyone tell you different. 99% of the time if something in the frame breaks, it'll be at the welds. hope this helps.
Q:Can you weld galvanized steel?
Conduit is made from low carbon steel. Then the galvanized coating is applied. The fumes from the coating are poisonous when heated. So your choices are to remove the coating then do your heating. They can be soldered, brazed and welded. It all depends how strong you want the joint and how high a temperature used. If you use silver solder the joint must be very tight. If you use lead solder a flux must be used same as brazing. Welding is the strongest and the melting temperature of steel is about 2600 degrees.
Q:When was steel first used in buildings?
steel was first used in the 1800s in buildings.

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