China Made All Kinds of Hot-Sold Galvanized Square Tubes

Square 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 by processing and rolling. Generally, the strip is unpacked, flat, crimped, welded to form a round tube, which is then rolled into a square tube and cut to the required length.

 

Process classification
Square pipe according to the production process: hot rolled seamless square pipe, cold drawn seamless square pipe, extrusion seamless square pipe, welded square pipe.
Which welded square pipe is divided into
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 weld points - straight seam welded square pipe, spiral welded square pipe.
Material classification
Square pipe according to the material: ordinary carbon steel square pipe, low alloy square pipe.
1, general 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 and so on.
Production standard classification
Square pipe according to production standards: national standard square pipe, Japanese standard square pipe, British square pipe, American standard square pipe, European standard square pipe, non-standard square pipe.
Section shape classification
The square pipe is classified by section shape:
1, simple section square tube: square square tube, rectangular square tube.
2, complex section square tube: flower square tube, open square tube, corrugated square tube, shaped square tube.
Surface treatment classification
Square pipe according to surface treatment: hot galvanized square pipe, electric galvanized square pipe, oil square pipe, pickling square pipe.
Use classification
The square pipe is classified by use: decorative square pipe, machine tool equipment square pipe, mechanical industry square pipe, chemical square pipe, steel structure square pipe, shipbuilding square pipe, automobile square pipe, steel beam column square pipe, special purpose square pipe.
Wall thickness classification
Square tubes are classified according to wall thickness: super thick wall square tubes, thick wall square tubes and thin wall square tubes.

 

Application: Widely used in machinery manufacturing, construction industry, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railway, highway guardrail, container skeleton, furniture, decoration and steel structure fields. Used in engineering construction, glass curtain wall, door and window decoration, steel structure, guardrail, machinery manufacturing, automobile manufacturing, home appliance manufacturing, shipbuilding, container manufacturing, electric power, agricultural construction, agricultural greenhouses, bicycle racks, motorcycle racks, shelves, fitness equipment, leisure and tourism supplies, steel furniture, various specifications of oil casing, oil pipes and pipelines, water, gas, sewage, air, mining Warm and other fluid transport, fire and support, construction, etc.

 

 

 

 

 

 

Q1: What's your terms of payment?
A: 30%T/T as the upfront deposit, 70% before delivery, We will show you the photos and package before you pay the balance.
Q2: What's the terms of delivery?
A: EXW, FOB, CFR, CIF
Q3: What's the terms of packing?
A: Generally,we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.
Q4: What's your delivery time?
A: For stocks, we could transport the goods to loading port within 7 work days after we received the deposit.For productionperiod,
it usually takes about 15 days to 30 days after we received the deposit.
Q5: Could you produce according to the samples?
A: Yes, we can customer-made by your samples or technique drawings, we can build the mold and fixtures.
Q6: Could youprovide the compliment samples?
A: Yes, we could provide the free samples on condition that it is available in stocks, however,the transportation fee is borne by
buyer.
Q7: How could you guarantee your products quality?
A: Each piece of products is manufactured by certified workshops, inspected by us piece by piece according to national QA/QC
standard. We also could issue the warranty to customer to guarantee the quality.
Q8:What are the advantages of your company?
A:(1): Prime quality and reasonable price.
(2): Wide excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Trial order can be done in one week.
(6): Samples can be provided as your requirements.