Straight seam steel pipe instead of seamless steel pipe, now straight seam steel pipe can be said to occupy % of the steel market, the project is very extensive, it can also be said that the project for seamless steel pipe is replaced by straight seam steel pipe is not a few, because the price of straight seam steel pipe is much cheaper than seamless steel pipe, the difference is about 200-500/ yuan per ton, now there are many steel plate materials, Different projects choose different materials, so the comprehensive performance of straight seam steel pipe is not worse than seamless steel pipe, seamless can meet the straight seam can also meet.

The advantages of straight seam steel pipe, that is, the diameter of steel pipe, seamless steel pipe is mostly small diameter, if more than 820mm, seamless steel pipe in the specification can not meet, straight seam steel pipe can meet the double weld to 1680mm, and seamless steel pipe also has advantages, in the wall thickness can be produced to 80mm, can meet the strong pressure pipeline and chemical corrosion pipeline engineering, This is the straight seam steel pipe can not replace.

Now the steel structure engineering is basically by straight seam steel pipe, because of the price, the steel structure engineering is basically not using seamless steel pipe, small diameter straight seam steel pipe, the steel structure has no pressure, no corrosion, just play the role of supporting structure using Q345B steel plate can be met, and the buried piling test straight seam steel pipe, weld without leakage, No inclusions, no pores, at the same time, the real estate line pipe is also using small caliber DN30mm-50mm straight welded pipe, in order to engineering, different projects, there are different requirements.

There is also a kind of engineering straight joint instead of seamless steel pipe, that is, column support, such as bridge piling pillar, now basically all use straight steel pipe, the same requirements for weld seam detection, the material used is Q345D, which is a new bridge material, hardness belongs to low carbon alloy material.

The construction period of straight seam steel pipe is different from that of seamless steel pipe. Straight seam steel pipe is only commonly available in stock, that is, Q235B. If the material quantity is different, the production period should be about 7-25 days, and seamless steel pipe is basically in stock at any time, which is the advantage of seamless steel pipe, so the purchase of straight seam steel pipe should be ordered in advance.

Cangzhou Shenlong Pipe mainly produces seamless steel pipe, straight seam steel pipe, spiral steel pipe, but also can process galvanized, anti-corrosion coating, has more than 20 years of production history, reliable quality, is a qualified supplier of BP oil, petrochina.