Pre-galvanized square pipe/tube is a hollow strip steel, a large number of used for conveying fluid pipe, such as oil, natural gas, water, gas, steam, etc., in addition, doing bending and torsional strength phase at the same time, the weight is lighter, it is widely used in the manufacture of machinery parts and engineering structures. Also commonly used for the production of various kinds of conventional weapons, barrel, shells, etc.
(1) General boiler tube temperature under 450 ℃, the domestic pipe mainly use 10, 20 carbon steel hot rolled or cold drawn tube manufacture.
(2) High pressure boiler tubes are often in high temperature and high pressure conditions, when using the pipe under the action of high temperature flue gas and water vapor, oxidation and corrosion will happen.Requirements of steel pipe with high rupture strength, high oxidation corrosion resistance, and have good organizational stability.
We specialized in manufacturing the full size of square tubes and rectangular tubes:20X20-600X600mm,square tubes,20X30-600X800mm rectangular tubes.
Q195—Grade B, SS330, SPC, S185
Q215—Grade C,CS Type B, SS330, SPHC
Q235---Grade D, SS400, S235JR, S235JO, S235J2
Q345---SS500, ST52, ST37
1.Chemical Component Analysis (C,Si,Mn,S,P)
2.Mechanical Properties (Tensile Strength, Yield Strength, Elongation )
MTC is supplied.
3.Third party inspection: BV,SGS
2.high quality,low price
3.good after-sales service
4.short delivery time
Founded in 2000, China Lucky Steel Co., Ltd. has become one of the leading suppliers of steel products in China. We have two factories and four marketing centers with more than 30 production lines and an annual capacity of 900,000 metric tons.
The company mainly specialized in various kinds of steel products, such as hot-dipped galvanized steel pipe, ERW black steel pipe, deformed steel, round bar steel, seamless steel pipe, spiral pipe, angle steel, I-beam, steel channel... We can also customize products according to orders, fulfilling all customers’ requests by providing convenient one-stop service. The company has been certified by BV, and all production process is strictly conforms to the international standard of ASTM A53, BS 1387, JIS G3444, DIN 2440, APL 5L and GB/T 628 to ensure the quality.
China Lucky Steel Co., Ltd. always adhere to the tenet of "loyalty and service first", taking sincerity as our life. "To satisfy customers" is our constant business principle. Since the establishment, we have been playing an active role in city construction, especially in 2008 Qingdao Olympics, Undersea tunnel, sea-crossing bridge. We have accumulated much experience in this line, and our products have been well sold worldwide. Through years' development, we have built up great reputation in quality and services among customers all over the world.
Packing and Transportation