February 08, 2019
Many know that stainless steel pipes can be
manufactured in seamless or welded forms. When there is a choice between
stainless steel pipe materials, there is one decision that you will have to
remember. And that factor is the type of production that was used to make the
steel pipe, which is either seamless or welded.
Seamless pipes are not manufactured with any sort of seam or weak point, it is
often considered that the seamless pipe is a product of greater integrity than
the sanitary pipe welded. Seamless pipes have standard working pressures which
are greater than welded pipes that are made out of very similar construction or
even material.
Seamless tubes are mainly used where the norm specifically specifies seamless, but current product standards are being continuously revised to adapt to modern welding manufacturing technology.
Seamless steel pipes also have another benefit, and this is that they can offer
better resistance to corrosion and rust since the steel alloy that is used to
make them do not contain any or even little impurities. The use of seamless
tubes enables many to stop the general danger of weaker material in welded
pipes. In conclusion to this kind of reasoning, a seamless steel pipe that is
even better for situations where there are a higher temperature and pressure
present. However, welded steel pipes such as those with an ASTM A333 Grade 6 rating are perfect for lower temperature needs.
For decades, all stainless steel tubes were seamless. However, advances in
welding and metal purification technologies have led to the popularity of
welded pipes.
This is because less stretch and annealing is required in the fabrication of
steel pipe that is welded, the overall price of welded steel pipe can be much
more budget friendly than that of a seamless steel pipe. and can usually be
obtained faster than the seamless pipe.
The decision to use a seamless or welded stainless pipe will depend mainly on the relationship between the wall thickness and the diameter and the specified pipe tolerances. Due to improved and cost-effective production technologies, normally more than eight percent of the tubes are welded.
Whether the price of a welded steel pipe or the general tensile strength of seamless steel pipe affect your decision or not can be dependent on a huge array of different factors. For example, the location and use of the steel pipe itself should be taken for consideration. Consider if the steel pipe is going to be used in conditions where high-temperature resilience is required, and in that case, seamless steel pipes would be the best option. Otherwise, a welded seamless steel pipe with an ASTM A333 Grade 6 rating is perfectly adequate for lower temperatures.
And those are the general differences between seamless and welded steel pipes. It is also important to note that both seamless and welded steel pipes can come in a variety of different specifications, so it is also important to check the specs of each steel pipe other than the actual production method that was used to create the pipe.
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