Minjie Steel Zinc-Aluminum-Magnesium Square and Rectangular Tubes – Corrosion-Resistant, Direct Supply for Export
PRODUCT DETAIL
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Product Name |
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Out Diameter |
Pre galvanized:1 1/2''(48.3mm/48.6mm) |
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Hot dipped galvanized:1 1/2''(48.3mm/48.6mm) |
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Thickness |
Pre galvanized:0.6-2.5mm. |
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Hot dipped galvanized: 0.8- 25mm. |
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Zinc coating |
Pre galvanized：5μm-25μm |
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Hot dipped galvanized：35μm-200μm |
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Type |
Electronic Resistance Welded (ERW) |
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Steel Grade |
Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, GR.B-D |
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Standard |
BS1139-1775, EN1039, EN10219, JIS G3444:2004, GB/T3091-2001, BS1387-1985, DIN EN10025, ASTM A53 SCH40/80/STD, BS-EN10255-2004 |
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Surface Finish |
Pre-galvanized, Hot dipped galvanized, Electro galvanized, Black, Painted, Threaded, Engraved, Socket. |
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International Standard |
ISO 9000-2001, CE CERTIFICATE, BV CERTIFICATE |
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Packing |
1.Big OD:in bulk 2.Small OD:packed by steel strips 3.woven cloth with 7 slats 4.according to the requirements of customers |
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Main Market |
Middle East,Africa, Asia and some Uropean country and South America, Australia |
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Country of origin |
China |
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Productivity |
5000Tons per month. |
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Remark |
1. Payment terms : T/T ,L/C 2. Terms of trade : FOB ,CFR,CIF ,DDP,EXW 3. Minimum order : 2 tons 4. Delivery time : Within 25 days. |
DETAILS IMAGES
specialized steel export manufacturer, Minjie Steel Co., Ltd. focuses on high-quality Zinc-Aluminum-Magnesium (Zn-Al-Mg) square tubes—a type of steel pipe featuring a novel alloy coating. Utilizing premium hot-rolled or cold-rolled steel strips as the base material and a hot-dip process with a ternary Zn-Al-Mg alloy, the pipes feature a uniform, dense coating with self-healing properties; cut edges automatically resist corrosion, and overall corrosion resistance far surpasses that of traditional galvanized steel pipes. The company operates a fully automated, integrated production line, handling the entire process in-house—from raw material cutting, cold-roll forming, and high-frequency welding to surface coating, straightening, precision cutting, and final inspection. Strict tolerance controls are maintained, and customization of cross-sectional dimensions, wall thickness, and length is available. These Zn-Al-Mg square tubes offer excellent weather resistance, scratch resistance, and long-lasting rust protection, making them ideal for applications such as photovoltaic mounting systems, architectural steel structures, municipal fencing, engineering machinery frames, and greenhouses. With ample production capacity at the source factory, the company exports to numerous countries and welcomes inquiries from overseas buyers for large-volume orders.
PACKING & DELIVERY
● Waterproof plastic bag then bundle with strip, On the all.
● Waterproof plastic bag then bundle with strip, On the end.
● 20ft container: not more than 28mt. and the lenath is not more than 5.8m.
● 40ft container: not more than 28mt. and the length is not more than 11.8m.
PRODUCTS MACHINING
Square & Rectangular Steel Pipes
Square tubes and rectangular tubes are steel structure tubes made of hot-rolled or cold-rolled steel strips, which are formed by high-frequency welding and hot-dip galvanized or cold-dip galvanized on the surface.
OUR COMPANY
Tianjin Minjie steel Co.,Ltd was established in 1998. Our factory more than 70000 square meters, just 40 kilometers from XinGang port, which is the biggest port in the north of China . We are a professional manufacturer and exporter for steel products.The main products are pre galvanized steel pipe, hot dip galvanized pipe, welded steel pipe ,square&rectangular tube and scaffolding products.We applied for and received 3 patents.They are groove pipe ,shoulder pipe and victaulic pipe. Our manufacturing equipment include 4 pre-galvanized product lines, 8ERW steel pipe product lines,3 hot-dipped galvanized process lines.According to standard of GB ,ASTM ,DIN ,JIS.The products are under the ISO9001 quality certification.
Annual output of various pipe is more than 300 thousands tons.We had obtained the honor certificates issued by the Tianjin municipal government and Tianjin quality supervising bureau yearly. Our products are widely applied to machinery,steel construction,agricultural vehicle and greenhouse,auto industries,railway,highway fence,container inner structure,furniture and steel fabric. Our company owns the firs class professional technique adviser in China and the excellent staffs with professional technology.The products had been sold to all over the world. We believe that our high quality products and services will be your best choice.Hope get your trust and support.Looking forward to the long term and good cooperation with you sincerely.
