Product Description
What is black square&rectangular steel pipe?.
Welding pipes is one of the simplest and most durable ways to join piping together and steel pipes can simply be welded together with MIG (metal inert gas), TIG (tungsten inert gas or SMAW (stick metal arc) welding. Before welding two pipes together, avoid any gaps between the two pipes. While welding, take measures to ensure the continual alignment of the two pipes.
What is pre galvanized square&rectangular steel pipe?
The pre-galvanized welded steel piperefers to welded tube which undergo degreasing,rush removal,phosphorization,zand drying processes before galvanization.The treatments before galvanization allow the product to be conveniently plated with a zinc coating,and also ensure uniform coating thickness,strong coating adhesion,and improved corrosion resistance
What is hot dipped galvanized square&rectangular steel pipe?.
Hot-dip galvanizing (HDG), as referenced is the process of dipping fabricated steel into a kettle or vat of molten zinc. While the steel is in the kettle, the iron metallurgically reacts with the molten zinc to form a tightly-bonded alloy coating that provides superior corrosion protection to the steel..
| OD mm | WT mm | OD mm | WT mm | OD mm | WT mm | OD mm | WT mm | OD mm | WT mm |
| 20x20 | 1.0-3.0 | 130x30 | 2.5-12 | 20x30 | 1.0-3.0 | 50x80 | 1.5-6.0 | 100x150 | 2.5-12 |
| 25x25 | 1.0-3.0 | 140x140 | 2.5-12 | 20x40 | 1.0-3.0 | 50x90 | 1.5-6.0 | 100x200 | 2.5-12 |
| 30x30 | 1.0-3.0 | 150x150 | 2.5-12 | 25x40 | 1.0-3.0 | 50x100 | 1.5-6.0 | 100x250 | 2.5-12 |
| 40x40 | 1.0-5.0 | 160x160 | 2.5-12 | 30x40 | 1.0-3.0 | 50x120 | 1.5-6.0 | 100x300 | 2.5-12 |
| 50x50 | 1.0-5.0 | 180x180 | 2.5-12 | 30x50 | 1.0-3.0 | 60x80 | 1.5-6.0 | 100x400 | 2.5-12 |
| 60x60 | 1.0-5.0 | 200x200 | 3.0-12 | 30x60 | 1.0-3.0 | 60x90 | 1.5-6.0 | 150x200 | 2.5-12 |
| 70x70 | 1.0-5.0 | 220x220 | 3.5-12 | 40x50 | 1.0-3.0 | 60x100 | 1.5-6.0 | 150x250 | 3.0-12 |
| 80x80 | 1.0-5.0 | 250x250 | 4.0-12 | 40x60 | 1.0-3.0 | 60x120 | 1.5-6.0 | 150x300 | 3.0-12 |
| 90x90 | 1.0-6.0 | 300x300 | 1.5-12 | 40x80 | 1.0-3.0 | 75x125 | 1.5-6.0 | 200x300 | 4.5-12 |
| 100x100 | 1.0-6.0 | 400x400 | 6.0-12 | 40x100 | 1.0-6.0 | 80x100 | 1.5-6.0 | 200x400 | 4.5-12 |
| 120x120 | 1.0-6.0 | 500x500 | 6.0-12 | 50x70 | 1.0-6.0 | 80x120 | 1.5-6.0 | 300x400 | 4.5-12 |
Material list
| Elements | Chemical Composition% | Mechanical Property | ||||||
| Material | C% | Mn% | S% | P% | Si% | Yield Point | Tensile Strength | Elongation |
| (Mpa) | (Mpa) | (%) | ||||||
| Q195 | 0.06-0.12 | 0.25-0.50 | >195 | 315-430 | 32-33 | |||
| Q235 | 0.12-0.2 | 0.30-0.70 | >235 | 375-500 | 24-26 | |||
| Q345 | 1.0-1.6 | >345 | 470-630 | 21-22 | ||||
Production Process
Product Detailed
Packing and Laoding
Why choose us
Large indoor and outdoor storage of goods, To ensure the supply of goos!Advanced testing equipment, Ensure first class quality!Obtaining of international certificate, To ensure our honest!
Our Services
• Your inquiry related to our product & price will be replied within 24hours.
• Well-trained & experienced staff are to answer all your inquiries professionalin English of course.
• OEM is highly welcomed. We have strong R&D team here to help.
• Your business relationship with us will be confidential to any third party.
• Good after-sale service offered, please get back if you got question
Faq
Q1: Are you a factory or trading company?
A: We are an enterprise of both professional production and large sales.
Q2: Can I get some samples?
A: Yes, we are honored to supply you free samples of steel tube.
Q3: What about your payment term?
a) T/T: 30% T/T advance, 70% balance copy of B/L
b) L/C
c) T/T and L/C: 40% T/T advance, 60% L/C
d)Two sides deliberations
Q4: What about the lead time for mass production?
A:Honestly, it depends on the order quantity and specification and the season you place the order.
Q5: What is your terms of delivery?
A:We accept EXW,FOB,CFR,CIF,etc about Rhs steel profiles. You can choose the one which is the most convenient or cost effective for you.
Profile Steel is used to mount, brace, support, and connect lightweight structural loads in building construction. These include pipes, electrical and data wire, China wholesale websites high quality rhs steel profiles mechanical systems such as ventilation, air conditioning, and other mechanical systems. Strut channel is also used for other applications Profile Steel that require a strong framework, such as workbenches, shelving systems, equipment racks, etc. Specially made sockets are available to tighten nuts; bolts etc.
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Profile Steel is equipped with excellent equipments including two sets 1450 reversible rolling mills,China wholesale websites high quality rhs steel profiles three sets 1150 reversible rolling mills, two sets galvanizing & galvalume lines, two sets color coating lines, one set correcting machine, and one set pickling line.