XINXIN PENGYUAN METAL MATERIAL CO., LTD.

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010 steel coil Black steel coil S235JR steel – XINXIN PENGYUAN

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Our primary intention should be to offer our clientele a serious and responsible enterprise relationship, delivering personalized attention to all of them for SS400 steel coil, 41Cr4 Alloy Plate, Bimetal Steel Plate, Our firm is dedicated to giving shoppers with significant and steady high quality goods at aggressive price tag, generating every single customer satisfied with our products and services.
Best Quality Cold Rolled Galvanized Steel Coil - SAE1010 steel coil Black steel coil S235JR steel – XINXIN PENGYUAN Detail:

Defects mainly include: falling off, scratches, passivation spots, zinc particles, thick edges, air knife stripes, air knife scratches, exposed steel, inclusions, mechanical damage, poor performance of steel base, wavy edges, ladles, improper size, embossing, improper thickness of zinc layer, roller printing, etc.

The main reasons for zinc layer falling off are: surface oxidation, silicon compounds, too dirty cold rolling emulsion, too high oxidation atmosphere in NOF section and dew point of protective gas, unreasonable air-fuel ratio, low hydrogen flow, oxygen infiltration in the furnace, low temperature of strip steel entering the pot, low furnace pressure in RWP section and air suction in furnace door, low furnace temperature in NOF section, endless oil evaporation, low aluminum content in zinc pot, too fast unit speed, insufficient reduction, too short residence time in zinc liquid The coating is too thick.

The causes of white rust and black spots are: black spots are formed by the further oxidation of white rust.

The main causes of white rust are:

(1) Poor passivation, insufficient or uneven passivation film thickness;

(2) The surface is not oiled or there is residual water on the surface of the strip steel;

(3) There is moisture on the surface of strip steel during coiling;

(4) Passivation is not completely dried;

(5) Damp or rain during transportation or storage;

(6) The storage time of finished products is too long;

(7) The galvanized sheet is in contact with or stored with other corrosive media such as acid and alkali.

The finished products can be stored in the warehouse for up to three months to avoid oxidation.

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Product detail pictures:

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010  steel coil Black  steel coil S235JR  steel  – XINXIN PENGYUAN detail pictures

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010  steel coil Black  steel coil S235JR  steel  – XINXIN PENGYUAN detail pictures

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010  steel coil Black  steel coil S235JR  steel  – XINXIN PENGYUAN detail pictures

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010  steel coil Black  steel coil S235JR  steel  – XINXIN PENGYUAN detail pictures

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010  steel coil Black  steel coil S235JR  steel  – XINXIN PENGYUAN detail pictures

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010  steel coil Black  steel coil S235JR  steel  – XINXIN PENGYUAN detail pictures

Best Quality Cold Rolled Galvanized Steel Coil - SAE1010  steel coil Black  steel coil S235JR  steel  – XINXIN PENGYUAN detail pictures


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We believe that long term partnership is a result of high quality, value added service, rich experience and personal contact for Best Quality Cold Rolled Galvanized Steel Coil - SAE1010 steel coil Black steel coil S235JR steel – XINXIN PENGYUAN , The product will supply to all over the world, such as: European, Argentina, Niger, Our products have enjoyed a great reputation for their good quality, competitive prices and prompt shipment in international market. Presently, we are sincerely looking forward to cooperating with more overseas customers based on mutual benefits.
  • It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
    5 Stars By Edith from Jamaica - 2018.11.22 12:28
    This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
    5 Stars By Zoe from Barcelona - 2017.09.26 12:12
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