Buy Steel Pipe
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How to buy steel pipe？
The specification requirements of the spiral steel pipe shall be listed in the import and export trade contract. Usually, it should include the standard grade (type code), the nominal diameter of the steel bar, the nominal weight (mass), the specified length, and the tolerance value of the above indicators. Chinese standards recommend spiral steel pipe series with nominal diameters of 8, 10, 12, 16, 20, and 40mm. The supplied length is divided into two types: fixed-length and double-length. The selection range of fixed length of rebar exported in my country is 6 ~ 12m, and the selection range of fixed length of rebar produced in Japan is 3.5 ~ 10m.
Skills to buy steel tube
1. The color and luster are generally uniform, the inner and outer walls are smooth and flat, and there are no bubbles, depressions, impurities, and other defects that affect the surface performance.
2. It depends on whether the logo on the product is complete. The steel pipe must have the manufacturer's name or trademark, production date, product name, specification size, implementation standard number, etc. The steel pipe must have the product name, nominal outer diameter, pipe series S, etc., the handwriting should be clear, and check whether the logo is consistent with the actual.
3. You should buy steel pipe and fittings of the same brand. Since the raw materials of products of different brands may be different, there will be unfavorable factors for the welding of pipes and fittings, and long-term use will cause leakage at the weld.
4. Good steel pipes have high strength rather than being broken, so the quality of steel pipes cannot be judged by whether they can be broken. Because the impact resistance of steel pipes is better than that of real steel pipes, steel pipes are easier to smash, and those that cannot be broken are often steel pipes.
Having said so much, we can see that steel pipes play a very important role in the construction of current construction projects. Different steel pipe specifications and models correspond to different construction purposes. It is necessary to grasp the purchasing skills to buy steel pipe.
