After-sales Service: | Online Service |
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Warranty: | Online Service |
Standard: | ASTM, JIS, GB, AISI, DIN, BS |
Certification: | ISO, RoHS, IBR |
Surface Treatment: | Galvanized |
Technique: | Hot Rolled |
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PPGI & PPGL (prepainted galvanized steel &prepainted galvalume steel) also known as pre-coated steel or color coated steel coil, It is a product made of hot-dip galvanized steel sheet, hot-dip galvalume steel sheet, electro galvanized steel sheet, etc. After surface pretreatment, one or several layers of organic coating are applied on the surface, and then baked and solidified. The color coated steel coil is light in weight, beautiful in appearance, and has good anti-corrosion performance, and can be directly processed. The color is generally divided into gray, sea blue, brick red, etc. It is mainly used in advertising, construction, decoration, home appliances, electrical appliances, Furniture industry and transportation industry. The coatings used for color coated steel coils are based on the environment in which the resin is selected, such as polyester silicon modified polyester, polyvinyl chloride plastisol, polyvinylidene chloride, and the like.
Location | category | value | |||||
Executive standard | National standard | GB/T12754-2019 | |||||
American Standard/European Standard | ASTM A792M | ||||||
Cold rolled substrate | Width specification | Cold rolled substrate thickness | Including metallized layer, the thickness after painting | Label thickness | |||
1200mm | ≥0.41mm | ≥0.46mm | ≥0.45mm | ||||
Size deviation | Width tolerance | Upper deviation +4mm | |||||
Lower deviation 0 | |||||||
thickness | Upper deviation +0.05mm | ||||||
Lower deviation 0 | |||||||
Yield Strength | >300MPA | ||||||
tensile strength | 270-500MPA | ||||||
elongation after break | More than 20% | ||||||
Steel coil inner diameter | Standard: 508mm,Except for other agreements | ||||||
metal coating | alloy composition | AlZnMg or galvanized AlMg | |||||
Total Weight of Plating Both Sides (Outside/Inside) | 150g/ (75/75 or 85/65) | ||||||
Neutral salt spray test | The surface of the board (without passivation, anti-fingerprint and other treatments on the surface) has a neutral salt spray test of more than or equal to 2500 hours, and there is no red rust on the surface. | ||||||
When the salt spray test on the wound surface (end surface) is greater than or equal to 1200, there is no red rust on the surface. | |||||||
PPGI paint | PE coating structure standard (μm) | Paint structure | 2/1 | outside | ≥25 | ||
Inside | ≥7 | ||||||
pencil hardness | Not less than HB | ||||||
Specular Gloss of Topcoat | Glossiness of finish paint mirror surface: ≥40 degrees | ||||||
T bend value | 2T | ||||||
Impact energy | Not less than 9J | ||||||
Neutral salt spray test | Greater than or equal to 1500h without bubbles | ||||||
UVB-313 | greater than or equal to 700h | ||||||
PPGI use environment | humidity | 20% to 90% | |||||
temperature | Min -45°C, Max 43°C | ||||||
unit ammonia | <30ppm | ||||||
unit carbon dioxide | <7000ppm | ||||||
unit oxygen | 21% | ||||||
unit hydrogen sulfide | <5ppm |
Corrugated board classification :
Profiled steel plates are usually classified in a variety of ways depending on the application location, plate wave height, lap joint structure, and material. Common classification methods are as follows:
(1) Classified according to the applied parts - divided into roof panels, wall panels, floor decks and ceiling panels. In use, colored steel plates are used as wall decoration panels at the same time, and the architectural decoration effect is relatively novel and unique.
(2) Classified by wave height-divided into high wave boards (wave height ≥ 70mm), medium wave boards (wave height <70mm) and low wave boards (wave height <30mm).
(3) Classification by substrate material-divided into hot-dip galvanized substrates, hot-dip galvanized substrates, and hot-dip galvanized aluminum substrates.
(4) Classified according to the structure of the plate seam - divided into lap joint, undercut and buckle structure, etc. Among them, the undercut and buckled medium and high wave panels should be used as roof panels with high waterproof requirements; the lapped medium and high wave panels should be used as floor panels; the lapped low wave panels should be used as wall panels.
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