PPGI is the material which uses galvalume steel as the basic substrate metal. PPGL is prepainted galvalume steel, also known as precoated steel, coil coated steel, color coated steel etc.A galvalume steel sheet in coil form is cleaned, pretreated, applied with various layers of organic coatings which can be paints, vinyl dispersions, or laminates.These coatings are applied in a continuous process known as Coil Coating.The steel thus produced in this process is a prepainted, prefinished ready to use material.
1.The Specification of prepainted galvalume steel coils:
prepainted galvalume steel coil
ASTM; ASTM; EN;GB
Coil or client’s requirements
galvalume steel coils
RAL color or accoridng the sample
coil or sheets
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Q:Excuse me, what's the difference between cold rolled steel plate and hot plate in steel plate?
The production process of cold rolled steel plate and hot rolled steel plate is different. Hot rolling is rolled at high temperature, and cold rolling is blown at room temperature
Q:Stainless steel drawing plate, polishing plate, mirror panels of the three differences
Stainless steel wire drawing refers to: stainless steel wire drawing is stainless steel surface like filamentous texture, this is only a stainless steel processing technology. The surface is Matt, and carefully look at the above there is a trace of texture, but can not touch it.
Q:How much is 2 millimeters per square meter?
The performance of carbon steel mainly has the following deficiencies:(1) hardenability is low. Under normal circumstances, the maximum quenching diameter of carbon steel water quenching is only 10mm-20mm.(2) strength and yield strength are relatively low, such as the s of ordinary carbon steel Q235 is 235MPa, while that of low alloy structural steel 16Mn is 360MPa and above s. The sigma S / sigma B of steel 40 is only 0.43, much lower than that of alloy steel.(3) the stability of tempering tempering stability, carbon steel in quenching and tempering treatment, in order to ensure the high strength with the tempering temperature is lower, so the toughness of the steel is lower; in order to ensure good toughness, with high tempering temperature strength is low, the mechanical properties of carbon steel level is not high.(4) stainless steel can not meet the requirements of special performance. Carbon steel is often poor in oxidation resistance, corrosion resistance, heat resistance, low temperature resistance, wear resistance and special electromagnetic properties, and can not meet the needs of special performance.
Q:What is the difference between cold rolling and hot rolling?
Hot rolled steel coil as raw material by pickling descaling after cold rolling, the finished rolling hard volumes, due to continuous deformation caused by cold hardening the hard roll strength and hardness of the rise and decline of toughness index, stamping performance deterioration, only for a simple deformation of parts. Rolled hard rolls can be used as raw material for hot galvanizing plants, because the hot galvanizing units are equipped with annealing lines. The roll weight is usually 6~13.5 tons, and the inside diameter of the steel coil is 610mm. Generally, cold continuous rolling plate and roll should be annealed by continuous annealing (CAPL unit) or bell type furnace to eliminate cold work hardening and rolling stress, and meet the standard mechanical performance indexes. The surface quality, appearance and size accuracy of cold rolled steel plate are superior to those of hot rolled plate.
Q:What is the electromagnetic steel plate in the generator?
The use of silicon steel sheet generator is designed to: 1) as magnetic pole and magnetic path with smaller excitation current can get larger magnetic field; 2) adding silicon steel material, increases the permeability and resistance to reduce eddy current losses in the steel sheet; 3) the steel sheet made of a film, increase the path of vortex flow, reduce the eddy current loss.
Q:What are hot and cold plates?
Cold rolled coil is made of hot rolled coil as raw material and rolled under the recrystallization temperature at room temperature, including plate and coil. Many steel mills in China, such as Baosteel, WISCO, Anshan Iron and steel company, can be produced. Among them, the delivery is called steel plate, also known as "box plate" or "flat"; the length is very long, the volume of delivery, known as "steel band", also known as "coil.".
Q:Is the steel plate 1.5 meters wide and 2 meters wide at the same price? .
The price of the steel plate is calculated by ton. There are many ways to calculate the price. The whole plate is a kind of price. If you need a specific size, if the cutting angle can not be used, it will be calculated accordingly.
Q:What is the width of carbon steel coil and the width of stainless steel coil, one is 1250 and the other is 1219?
A continuous rolling mill is put in billions of dollars, but this is the rolling mill, and there are many gold furnaces.
Q:What's the difference between single rolling steel sheet and continuous rolling steel plate?
Single rolled steel plate usually refers to medium plate, in the process of rolling and finishing, the plate has been flat, usually thicker (6mm or more), the width of the fastest up to 4800mm.
Q:What's the difference between steel plate 20 and Q235 steel plate?
In the normalizing state of No. 20 steel, the yield point is 245MPa, the elongation is >25%, the quenched and tempered state, the yield point is 280MPa, and the elongation is >22%. Widely used in the production of small, high load toughness requirements of parts, such as rod, heavy and general machinery in forging the sleeve, fixture and liner, general machinery and automobiles and tractors in small parts of carburizing, cyaniding.