After-sales Service: | Quality Follow-up |
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Warranty: | 180 Days |
Type: | Welded |
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Product Name | Pre-Galvanized Square Rectangular Hollow Section Steel Pipe for Structure Bulding |
Grade | Q195,Q235,Q345,ASTM A36,ASTM A572 Grade 50,ASTM A500 Grade A |
Outer Diameter | Rectangular:10*20-150*200mm (Tolerance:+/-0.2mm) Square:10*10-200*200 (Tolerance:+/-0.2mm) |
Wall Thickness | Rectangular :0.25-5mm (Tolerance:+/-0.02mm) Square: 0.25-15mm(Tolerance:+/-0.02mm) |
Length | 0.3m-12m,or customized (Tolerance:-0/+20mm) |
Processing Techniques | Reducing ,Steel Marking ,Stencil Printing or Marking , Punching |
Zinc Coated | Pre-galvanized : 30-120g/m2; Hot dipped galvanized : 200-500g/m2 |
Standard | GB/T 6728-2017 GB/T 3091-2008 GB/T 3094-2012 ASTM A500/A500M-21 ASTM A123/A123M-17 EN 10219-1:2006 EN 10240:1998 IS4923:2017 IS1239-2004 JIS G3466:2015 J15 G3466:2015 |
Package | 1.bundle by steel strips 2.in bulk 3.in bundles with steel strips, and wrapped with waterproof cloth 4.Wooden pallet 5.according to client's requirement |
Usage | Construction,Water /Gas Transportation,Mechanical Applications Decoration, Product manufacture |
MOQ | 10 Tons |
Payment | T/T,L/C |
Delivery time | 10-15 days |
Material | Chemical Composition | Mechanical Properties | ||||||
C | Mn | Si | S | P | Yield Strength (Mpa) |
Tensile Strength (Mpa) |
Elongation (%) | |
Q195 | 0.06-0.12 | 0.25-0.50 | ≤0.30 | ≤0.045 | ≤0.05 | ≥195 | 315-430 | ≥33 |
Q215 | 0.09-0.15 | 0.25-0.55 | ≤0.30 | ≤0.05 | ≤0.045 | ≥217 | 335-450 | ≥27 |
Q235 | 0.12-0.20 | 0.30-0.67 | ≤0.30 | ≤0.045 | ≤0.04 | ≥235 | 375-500 | ≥26 |
Q345 | ≤0.20 | 1.00-1.60 | ≤0.55 | ≤0.04 | ≤0.04 | ≥345 | 470-630 | ≥22 |
Chinese Materials Corresponding to Foreign Materials | |
Chinese Steel Grade | Foreign Steel Grade |
Q195 | Grade B, SS330,SPHC, S185 |
Q215 | Grade C,CS Type B,SS330, SPHC |
Q235 | Grade D,SS400,S235JR,S235JO,S235J2 |
Q345 | SS500,ST52 |
20# | ASTM A106 A53 Grade.B |
1.The ends of each steel pipe is strictly treated,remove burrs
2.The raw materials is supplied from large steel mills
3.Strictly control the production process
4.Small tolerance range
Packing | Containers Information |
1.Big OD:in loose pieces 2.Small OD:packed by steel strips into bundles 3.wrapped by woven cloth with 7 slats 4.two ends are wrapped by woven bag,bundle by steel strips 5.packed by seaworthy hexagonal bundles by steel strips.(used for round pipe) 6.according to the requirements of customers |
20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High) 40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High) 40ft HC: 12032mm(Length)x2352mm(Width)x2698mm(High) 20 feet container load 25 tons steel pipe whose length is under 5.8m. 40 feet container load 27 tons steel pipe whose length is under 11.8m. |
Tianjin Hongxin International Trade Co.,Ltd
Our company was founded in 2004, is a comprehensive steel manufacturer integrating production, processing and trade all in one. The company's premises are located in Shengfang of Hebei Province. Enjoying the convenient traffic and occupying an advantageous location,the company covers an area of 30,000 square meters, construction area of 7,500 square meters, more than 200 employees. Our company now owns 15 ERW steel pipe production lines and 6 special precision steel pipe production lines, and can reach the annual production capacity of 1,000,000 tons.
The company actively develops diversified operations, forming a production system with galvanized welded pipes and ERW steel pipes as flagship products and covering precision steel pipe,black Strip,galvanized belt, Bright Strip, Full Black Pipe, Bright pipe, and all kinds of different round,Rectangular, Square and special pipes, forming a whole producing system.Our products have sold abroad more than 30 countries in different continent . We established the trade sale center in Tianjin in order to expand the market and serve to the customers abroad.
Tianjin Hongxin international trade co., Ltd is making close connection with multiple platforms and multi channels to do the sales promotion. Our company is operating in good faith, the purpose of serving customers warmly .We are looking forward to establish business relationship with partners around the world of win-win cooperation.FOR YOUR BEST ,WE DO BEST !
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Resolve any issues raised by customers
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra?
A:Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your MOQ?
A: Usually our MOQ is 5t. But if your quantity is small, the price may be a little higher. When there is a big quantity, the price will be quite lower.
Q:Do you supply customizable products?
A: You can provide us your drawing, and we will produce as your drawing. Or we can design as your requirements if you do not have a clear plan.
Q:How to pay?
A: TT and L/C are acceptable and TT will be more appreciated.30% deposit before producing, 70% balance before loading by TT.
Q:How to get an accurate quotation?
A:Product detail size & Length,product quantities,product material grade.