Square Steel Tube

$ 0.65 - 0.8 Kilogram

Hot dip galvanized steel pipe is to make molten metal react with iron substrate to produce alloy layer, so that the substrate and coating are combined. Hot dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, the steel pipe is cleaned by ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then sent to the hot dip galvanizing tank. Hot dip...

$ 0.65 - 1 Kilogram

Our markets mainly are Middle & South America, Southeast Asia, the Middle East and Africa, covering nearly 30 countries and obtaining a well-deserved reputation from clients around the world. We have built long-term cooperation with many clients and have received wide acclaim. In the future, our company will continue to stabilize the development of enterprises，and better serve global customers .we are sincerely expecting to cooperate with you! It is a large-scale enterprise that produces...

$ 0.65 - 1 Kilogram

It is a large-scale enterprise that produces and sells stainless steel hot-dip galvanized steel pipe, Galvanized square tube , Rectangle steel pipe , Round steel pipe, Spiral steel pipe, oil casing, sheet coil, stainless steel pipe , stainless steel tube and other pipe products. Standing by our slogan “Committed to quality, Committed to You” can best be shown through our reputation, with an annual production and sales of 1.5 million tons,having a complete pre-sale, sale, after-sales service...

$ 0.7 - 0.97 Kilogram

Shandong Xinsuju Steel Co., Ltd. was founded on April 11th, 2018. The company is located in Liaocheng City, Shandong Province, which is the largest steel pipe production base in China. It is a large-scale enterprise that produces and sells stainless steel hot-dip galvanized steel pipe, Galvanized square tube , Rectangle steel pipe , Round steel pipe, Spiral steel pipe, oil casing, sheet coil, stainless steel pipe , stainless steel tube and other pipe products. Standing by our slogan “Committed...

$ 0.7 - 1 Kilogram

Galvanized steel pipe Welded steel pipe with hot dip plating or electrogalvanized coating. Galvanized steel pipe can increase the corrosion resistance, prolong the service life. Galvanized pipe has a wide range of uses, in addition to the pipeline pipe for water, gas, oil and other general low pressure fluid, but also used in the petroleum industry, especially the oil well pipe, oil pipeline, chemical coking equipment of the oil heater, condensate cooler, coal distillation and washing oil...

$ 0.7 - 1 Kilogram

Hot dip galvanized pipe is made of molten metal and iron matrix reaction to produce alloy layer, so that the matrix and the coating of the two combination. Hot dip galvanizing is to first pickling the steel pipe. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned by ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent into the hot dip plating tank. Hot dip galvanizing...

$ 0.65 - 1 Kilogram

The use of galvanized pipe gas, heating with the kind of iron pipe is galvanized pipe, galvanized pipe as a water pipe, the process is: black pipe - alkali washing - washing - pickling - by the discovery of Sha paste - water rinsing - immersion agent - drying - hot dip galvanized - blowing outside - blowing inside - air cooling - water cooling - passivation - water rinsing - inspection - weighing - storage. Our markets mainly are Middle & South America, Southeast Asia, the Middle East and...

$ 0.7 - 0.98 Kilogram

The grade and chemical composition of galvanized steel pipe shall conform to the grade and chemical composition of black pipe steel stipulated in GB/T3091. The black tube manufacturing method (furnace welding or electric welding) is chosen by the manufacturer. Galvanizing adopts hot dip galvanizing method. Uniformity of Galvanized steel pipe should be tested for uniformity of galvanized layer. The steel tube sample shall not turn red (copper plating color) after 5 consecutive impregnations in...

$ 0.65 - 0.97 Kilogram

Tensile strength of galvanized steel pipe (σb): The stress (σb) obtained by dividing the sample's original cross-sectional area (So) by the maximum fully wetted force (Fb) endured by the sample when it breaks during the tensile process is called the tensile strength (σb), and the unit is N/mm2(MPa). It represents the maximum capacity of a metal material to resist damage under tensile force. Where, Fb-- the maximum force borne by the specimen when it breaks, N(Newton); So-- original...

$ 0.66 - 0.97 Kilogram

Yield point of galvanized steel pipe (σs): The stress at which the specimen can continue to extend without increasing (maintaining constant) the force during the tensile process of a metal material having the phenomenon of yield. If the force drops, the upper and lower yield points should be distinguished. The unit of yield point is N/mm2(MPa). Upper yield point (σsu): the maximum stress of the specimen before the first drop in force due to yield; Lower yield point (σsl): the minimum stress in...

$ 0.66 - 1 Kilogram

Properties of galvanized steel pipe: (1) Carbon; The higher the carbon content, the harder the steel, but the less plastic and ductile it is. (2) sulfur; It is harmful debris in steel. When steel with high sulfur content is processed under pressure at high temperature, it is easy to crack, which is usually called hot brittleness. (3) Phosphorus; Can make the plasticity and toughness of steel significantly decreased, especially at low temperature is more serious, this phenomenon is called cold...

$ 0.8 - 1.2 Kilogram

Rust removal method of galvanized steel pipe: 1, first use solvent to clean the surface of the steel, remove the organic matter on the surface, 2, then use tools to remove rust (wire brush), remove loose or inclined scale, rust, welding slag, etc., 3. Use pickling. Galvanized is divided into hot plating and cold plating, hot plating is not easy to rust, cold plating is easier to rust. Our markets mainly are Middle & South America, Southeast Asia, the Middle East and Africa, covering nearly...

$ 0.62 - 1 Kilogram

Requirements for galvanized steel pipe threads and joints: (a) Galvanized steel pipe for delivery with thread, the thread shall be turned after galvanized. Threads shall conform to YB 822. (b) Steel pipe fittings shall conform to YB 238; Malleable cast iron pipe fittings shall conform to YB 230. Our markets mainly are Middle & South America, Southeast Asia, the Middle East and Africa, covering nearly 30 countries and obtaining a well-deserved reputation from clients around the world. We...

$ 0.82 - 1.1 Kilogram

Elongation of galvanized steel pipe after breaking :(σ) In tensile tests, the percentage of the length increased by the standard distance after a specimen is broken to the length of the original standard distance is called elongation. It is expressed as σ, in %. Where :L1-- the distance length of the sample after it is broken, mm; L0-- original range length of sample, mm. Our markets mainly are Middle & South America, Southeast Asia, the Middle East and Africa, covering nearly 30 countries...

$ 0.61 - 0.9 Kilogram

Hardness index of galvanized steel pipe: The ability of metal material to resist hard objects to sag the surface, known as hardness. According to the different test method and application range, the hardness can be divided into Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness, microhardness and high temperature hardness. There are three kinds of Brinell, Rockwell and Vickers hardness commonly used for pipes. Our markets mainly are Middle & South America, Southeast Asia,...

$ 0.6 - 1 Kilogram

Brinell hardness (HB) of galvanized steel pipe: The steel ball or hard alloy ball of a certain diameter is pressed into the surface of the pattern with the specified test force (F), and the test force is removed after the specified holding time, and the indentation diameter (L) of the sample surface is measured. The Brinell hardness value is the quotient of the test force divided by the surface area of the indentation ball. It is expressed in HBS(steel ball) and expressed in N/mm2(MPa). Our...

$ 0.56 - 0.8 Kilogram

Effect of galvanized steel pipe performance: (1) Carbon; The higher the carbon content, the harder the steel, but the less plastic and ductile it is. (2) sulfur; It is harmful debris in steel. When steel with high sulfur content is processed under pressure at high temperature, it is easy to crack, which is usually called hot brittleness. (3) Phosphorus; Can make the plasticity and toughness of steel significantly decreased, especially at low temperature is more serious, this phenomenon is...

$ 0.5 - 0.8 Kilogram

Galvanized pipe welding connection method: 1. Galvanized steel pipe mouth is not in a straight line after docking and steel pipe has the problem of diagonal. It is recommended to cut off a small section of steel pipe head before processing. 2. After the joint of galvanized steel pipe orifice, the joint of two pipe orifice is not strict, resulting in uneven welding thickness; As well as the steel pipe due to its own reasons or transportation bump, resulting in the pipe mouth oval, it is...

$ 0.5 - 0.8 Kilogram

Wire connection method of galvanized steel pipe: 1, silk buckle disorderly buckle: tube hoop and silk buckle can not completely contact, loose, cut off the disorderly buckle part, re wire installation. 2, steel pipe wire buckle and tube hoop wire buckle do not match, can not be connected, should replace the tube hoop or adjust the equipment to turn the wire again. 3. Leakage after steel pipe wire: Measure whether the wall thickness of steel pipe can meet the standard thickness requirements of...

$ 0.5 - 0.9 Kilogram

Galvanized steel pipe process is: the clarinet, alkaline cleaning, washing, pickling - follow please paste of fuzhou - rinse - leaching agent - drying - hot dip galvanized - - within the outer wind - air cooling, water cooling, passivation, water rinse, inspection, weighing, warehousing. It is a large-scale enterprise that produces and sells stainless steel hot-dip galvanized steel pipe, Galvanized square tube , Rectangle steel pipe , Round steel pipe, Spiral steel pipe, oil casing, sheet coil,...