Carbon Steel Square Pipe
Carbon Steel Square Pipes (Q235B/Q355B/ASTM A36)
20×20–200×200mm size range, 1.5–8mm wall thickness, 6–12m length.
High strength for construction frames, supports & general structural use. Custom cutting & wholesale supply.
1. How to get samples to check the quality? How long can I get the samples?
After the price is confirmed, samples can be provided for your evaluation. After confirming the sample details, the samples will be ready for delivery within 3-7 days, and sent to you by courier, and arrive within 3-5 days.
2.Do you provide samples ? is it free or extra ?
Answer:The sample could can provide for customer with free,but the courier freight will be covered by customer account.
3. Do you accept the third party inspection?
Answer: Yes absolutely we accept.
4.Can you accept customization?
Answer:Yes. If you have special requirements on products or packages, we can do customization for you.
5.How do you control the quality?
Answer:We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract. In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one. You can be assured that all the products you get from us are reliable.
Description
【Carbon steel square tubes / rectangular tubes】
ASTM A500 Gr.B/C, SHS structural hollow sections, specifications 20×20 – 500x500mm, wall thickness 1.0 – 20mm, available for galvanizing, painting and cutting. Suitable for construction structures / mechanical frames / display shelves. Export grade quality. Customizable as per requirements and FOB/CIF quotations are provided.
| Product name | Carbon Steel Square Pipe |
| lace of Origin: | China |
| Oiled or Non-oiled: | Non-oiled |
| Alloy Or Not: | Non-Alloy |
| Tolerance: | ±1% |
| Special Pipe: | Thick Wall Pipe,EMT Pipe |
| Outer Diameter: | 13 – 600 mm |
| outer meter | 10*10-600*600mm |
| wall thickness | 0.4-25mm |
| Length: | 1-12m |
| Shape: | Round, Square or Rectangular |
| Itmes: | 4 6 12 inch SCH 40 80 black carbon steel pipe |
| processing service | Bending, Welding, Decoiling, Punching, Cutting |
| Secondary Or Not: | Non-secondary |
| technology | hot rolled, cold rolled, black annealed |
| Keyword: | welded steel pipe |
| End protector: | Plastic Pipe Cap |
| Thickness: | 0.35 – 100mm |
| Standard: | API, ASTM, bs, GB, API 5L, ASTM A106-2006,ASTM A53-2007, BS 1387, BS 1139, BS EN10219, GB 3087-1999, GB/T3901,EN, BS, JIS |
| Surface Treatment: | Paint oil; Varnish; Galvanized;Galvanize the raw strip steel; |
| Grade: | 10#, 20#, 45#, Q235, Q345, Q195, Q215, ST52, ST42, ST35, 10#-45#, Q195-Q345, ST35-ST52Q235, Q235B, S275, S275jr, A53, st37, st52Q195 → Grade B, SS330,SPHC, S185Q215 → Grade C,CS Type B,SS330, SPHCQ235 → Grade D,SS400,S235JR,S235JO,S235J2Q345 → SS500,ST52 |
| Usage: | mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail, container frame, furniture, decoration, steel structure,Chemical Fertilizer Pipe,Structure Pipe, Building Construction |
| package | Standard Seaworthy Packingtied with steel trips,then wrapped by plastic material or as request |











