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How to store steel? Precautions related to the transportation of steel

Steel is widely used and has many varieties. Depending on the shape of the section, steel is generally divided into four categories: profiles, plates, pipes and metal products. The following is the knowledge about the steel storage and transportation of steel.

Steel storage should choose a suitable site and storage

  1. The site or warehouse of steel storage, should be selected in a clean, well-drained place, away from the production of harmful gases or dust mines. Weeds and all debris should be removed from the site to keep the steel clean.
  2.  Steel storage ‘ warehouse should not be stacked with acid, alkali, salt, cement and other materials that are aggressive to steel. Different varieties of steel should be stacked separately to prevent confusion and contact corrosion.
  3. Large sections, rails, insulting steel plates, large diameter steel pipes, forgings, etc. can be stacked in the open.
  4. Small and medium-sized sections, coils, bars, medium-diameter steel pipes, steel wire and steel wire rope, etc., can be stored in a well-ventilated shed, but must be thatched under the mat.
  5. Some small steel, thin steel plate, steel strip, silicon steel sheet, small-diameter or thin-walled steel pipe, a variety of cold-rolled, cold-drawn steel and high prices, easy to corrode metal products, can be stored in the warehouse.
  6. The warehouse should be selected according to the geographical conditions, generally closed warehouse, that is, a roof with walls, doors and windows tightly, with ventilation devices warehouse.
  7. The warehouse should be ventilated on sunny days and closed on rainy days to prevent moisture, so as to maintain a suitable storage environment.
Steel storage

Steel storage should reasonable stacking, first in, first out

  1. The principle of stacking requires that under the condition of stable and safe palletizing, palletizing should be done according to varieties and specifications, and different varieties of materials should be palletized separately to prevent confusion and mutual corrosion.
  2.  Steel storage prohibit the storage of corrosive items to steel near the pallets.
  3. The bottom of the pallets should be high, firm and flat to prevent the materials from getting wet or deformed.
  4. The same material should be piled up according to the order of storage, so that the principle of first-in-first-out can be implemented.
  5. Open-air stacking of steel sections must have wooden mats or rocks underneath, with slightly inclined pallets for drainage, and pay attention to the straightness of the material to prevent bending and deformation.
  6. The height of stacking should not exceed 1.2m for manual work, 1.5m for mechanical work and 2.5m for stacking.
  7. There should be a certain channel between the stack and the pile, the inspection channel is generally O.5m, the access channel depends on the size of the material and transport machinery, generally 1.5~2.0m.
  8. stack bottom pad height, if the warehouse for the sunrise of the cement ground, pad height O.1m can be; if for the mud, shall pad height O.2 ~ 0.5m. If for the open field, cement ground pad height O.3 ~ O.5m, sand and mud surface pad height 0.5 ~ O.7m.
  9. Angle and channel steel should be stacked in the open air, that is, the mouth down, I-beam should be placed upright, the I-slot side of the steel can not face up, so as not to accumulate water rust.

Steel storage should protective material packaging and protective layers

Steel factory coated anticorrosive or other plating and packaging, which is an important measure to prevent material rust, in the process of transportation and handling must pay attention to protection, can not be damaged, can extend the storage period of the material.

Steel storage should keep the warehouse clean, strengthen material maintenance

  1.  the material in the storage before the attention to prevent rain or mixed with impurities, the material has been drenched or stained according to its nature to use different methods to wipe clean, such as high hardness of the available steel wire brush, low hardness of cloth, cotton and other things.
  2.  the material should be frequently checked after storage, such as rust and corrosion, should remove the rust and corrosion layer.
  3. After the general steel surface is cleaned, there is no need to apply oil, but for high quality steel, alloy thin steel plate, thin-walled pipe, alloy steel pipe, etc., after rust removal, its inner and outer surface should be coated with rust-proof oil before storage.
  4. For the steel with serious rust, it is not suitable for long-term storage after rust removal and should be used as soon as possible.

Notes related to steel transportation.

Steel cargoes include pig iron, ingots, all kinds of steel, etc. The loading in transportation should be evenly balanced, moisture-proof and moisture-proof to prevent rust and corrosion.

  1. The steel itself is heavy, the vehicle should be equipped with bedding during shipment, pay attention to the safety of shipment.
  2. Do not mix different kinds of steel.
  3.  It should be equipped with moisture-proof and moisture-proof tools such as tarpaulin.
  4. When loading, avoid steel pieces to exceed the car, and distribute the goods evenly.
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