SHOUYUAN STEEL
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Shouyuan steel is not only a professional steel supplier, but also your trustworthy partner in China. We ensure quality and quantity, provide material certificates, and will refund if the products are not qualified, so please be assured the purchase. Regarding long-term cooperation or large orders, you can contact us for additional discounts.
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Product Video
Product Parameter
Square Steel Tube: Square and rectangular pipe is a name for square pipe and rectangular pipe, that is, steel pipes with equal and unequal side lengths. It is made of strip steel that has been processed and rolled. Generally, the strip is unpacked, flattened, coiled, welded to form a round tube, and then rolled into a square tube from the round tube and then cut to the required length.
RHS and SHS tube are a welded structural grade tubing,depending on its size and wall thickness. Either grade is ideal for all structural applications, general fabrication, manufacturing and repairs.
Square hollow section is widely used in industrial maintenance, agricultural implements, transportation equipment, truck beds, trailers, frames, etc. Its box-shape configuration allows for much greater strength and rigidity compared to angles or channels.
Product Show
① The usual delivery length of square and rectangular tubes is 4000mm-12000mm, mostly 6000mm and 12000mm. The square rectangular tube is allowed to deliver short-length and non-fixed-length products not less than 2000mm, and it can also be delivered in the form of an interface tube, but the buyer should cut off the interface tube when using it. The weight of short-length and non-fixed-length products shall not exceed 5% of the total delivery quantity, and for square and rectangular pipes with a theoretical weight greater than 20kg/m, shall not exceed 10% of the total delivery quantity
② Process classification According to the production process, square and rectangular pipes are divided into: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes. 1. According to the process - arc welded square tube, resistance welded square tube (high frequency, low frequency), gas welded square tube, furnace welded square tube 2. According to the welding seam - straight seam welded square tube, spiral welded square tube.
③ Material classification The square tube is divided into: ordinary carbon steel square tube, low alloy square tube. 1. Common carbon steel is divided into: Q195, Q215, Q235, SS400, 20# steel, 45# steel, etc. 2. Low alloy steel is divided into: Q345, 16Mn, Q390, ST52-3, etc. Production Standard Classification According to the production standard, the square tube is divided into: national standard square tube, Japanese standard square tube, British standard square tube, American standard square tube, European standard square tube, and non-standard square tube.

The coating designation G40 represents the type of coating and the weight of the applied coating. The letter "G" indicates that the coating is galvanized, meaning zinc-based. Meanwhile, the number "40" represents the thickness of zinc on the surface of the steel coil. Galvanized steel square pipe tube is covered with a zinc coating to provide corrosion resistance. The G40 protective coating prevents moisture from reaching the steel structure, thereby improving the corrosion resistance of the steel. This can extend the life expectancy of the steel. G40 is the average coat weight and therefore provides moderate protection.
Product Features
① Flat incision
Multiple processing equipment. good raw materials and
processing technology from large factories, the cutting surface of the product is smooth and smooth without burrs, and the whole is beautiful and firm.
② Custom specifications
Product specifications variety large storage, adequate inventory, according to the need to map to sample customized different specifications length and shape, and equipped with a variety of processing technology
③ Not easily deformed
Reliable material, stable support bearing capacity under high pressure is not easy to use deformation fracture, long service life, cost saving
④ After-sale protection
Source factory direct supply spot, strict quality control, from warehouse to receive the whole process of quality control, quality assurance, can be assured to buy and use

Description of application effect
Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low-alloy steels and high-alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0%.Most commonly, the phrase "alloy steel" refers to low-alloy steels. Strictly speaking, every steel is an alloy, but not all steels are called "alloy steels". The simplest steels are iron (Fe) alloyed with carbon (C) (about 0.1% to 1%, depending on type). However, the term "alloy steel" is the standard term referring to steels with other alloying elements added deliberately in addition to the carbon. Common alloyants include manganese (the most common one), nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common alloyants include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead and zirconium.
Application
Square pipe and rectangular pipe application:
Mainly used in engineering construction, glass curtain wall, doors and windows decoration, steel structure, guardrail, machinery manufacturing, automobile manufacturing, home appliance manufacturing, shipbuilding, container manufacturing, electricity, agricultural construction, agricultural greenhouses, bicycle racks, motorcycle racks, shelves, fitness equipment Water and gas, gas, sewage, air, heating and other fluid transportation, fire and support, construction and other fields.


Packing & Delivery
Packing&Loading:
Normally packed in bundles with strong metal strips;
Bare or with woven bag or pupple film, or put in wooden crate;
If not in bunles, we put pipe in pipe or single pipe,
If pipe length ≤ 5.8m, loaded in 20' container,
If pipe length ≤ 11.8m, loaded in 40' container,
If pipe length > 11.8m, load on board by bulk FILO Terms.

Customer Feedback

FAQ
Q1: Are you a galvanized tube manufacturer or trading company?
A: We are an integrated manufacturer and trading company with our own factory and multiple production lines, providing stable supply and project-based procurement support for international customers.
Q2: What types of galvanized tubes do you supply?
A: We supply hot-dip galvanized square tubes and rectangular tubes in various grades, sizes and wall thicknesses for construction, structural and industrial applications.
Q3: What standards and steel grades are available?
A: We can supply galvanized square and rectangular tubes according to ASTM, EN, DIN, JIS and GB standards, with grades selected according to customer and project requirements.
Q4: What sizes and wall thicknesses are available?
A: We offer a wide range of square and rectangular tube dimensions and wall thicknesses. Customized sizes can also be supplied according to customer specifications.
Q5: What zinc coating levels are available?
A: Zinc coating requirements depend on the applicable standard and application. Different coating levels can be supplied according to customer or project specifications.
Q6: Can you provide customized galvanized square and rectangular tubes?
A: Yes. We can customize dimensions, wall thickness, length, steel grade, zinc coating, surface treatment and packaging according to customer requirements.
Q7: What is the difference between galvanized square and rectangular tubes?
A: Square tubes have equal width and height, while rectangular tubes have different dimensions. The appropriate profile can be selected based on structural design and application requirements.
Q8: Do you provide MTC and inspection documents?
A: Yes. We can provide Mill Test Certificates and relevant inspection documents covering chemical composition, mechanical properties, dimensions, zinc coating and other specified requirements.
Q9: Do you accept third-party inspection?
A: Yes. Third-party inspection can be arranged according to customer or project requirements before shipment.
Q10: What is the MOQ and lead time?
A: MOQ and lead time depend on the tube specifications, zinc coating, order quantity and production schedule. Specific terms are confirmed with each quotation.
Q11: What payment methods and terms do you accept?
A: We generally accept T/T and L/C for international orders. Payment terms are confirmed based on the order value, product specifications, delivery terms and customer requirements, and are stated clearly in the quotation and sales contract.
Q12: How can I get a quotation for galvanized square or rectangular tubes?
A: Please provide the required standard, grade, tube dimensions, wall thickness, length, zinc coating, quantity and delivery destination. We will prepare a quotation based on your specifications.
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