welded pipes are manufactured from plate or continues coil or strips. to manufacture a welded pipe, the first plate or coil is rolled in the circular section with the help of a plate bending machine or by a roller in the case of a continues process.once t
psl is short for product specification level. the product specification level of pipeline pipe can be divided into psl1 and psl2, which can also be said that the quality level can be divided into psl1 and psl
lsaw and ssaw are variants of saw (submerged arc welded) pipes. the difference between them is the way they are welded. in lsaw pipes, the welding is longitudinal, which means that steel (hot rolled coil plate) is rolled into a pipe and the seam is welded longitudinally. in the ssaw type,
the halt to construction of the keystone xl oil pipeline, long a point of contention between climate activists and the energy industry, has caused a ripple in us-canada relations.
pipe pile is normally used for stabilization to support a deep foundation to bear the heavy load capacity of the building structures or seaport projects, cofferdam construction, marine foundation farther down the earth’s surface.the steel pipe pile is a type of spiral
from 2014 to 2018, the demand for seamless steel pipes in china decreased year by year. in 2018, the demand for seamless steel pipes in china was 20.86 million tons, a decrease of 5.94% year-on-year. in 2019, the demand for seamless steel pipes in china was 23.77 million tons. a year-on-ye
urumqi -- the tarim oilfield of china national petroleum corporation (cnpc), china's leading oil and gas producer, on monday saw its 2020 output surpass 30 million tons of oil equivalent.
q345 steel propertiesq345 steel is a chinese gb standard low alloy high strength structural steel, material density is 7.85 g/cm3, tensile strength is 470-630 mpa, and yield strength is 345 mpa, it has better properties than q235
a53 pipe vs a106 pipe – scopeastm a53 is standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless.astm a106 is standard specification for seamless carbon steel pipe
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