Carbon Steel Tube
Seamless carbon steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes have square, elliptical, triangular, hexagonal, melon-shaped, star-shaped, and finned pipes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, petrochemical cracking pipes, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation. TEL: +86 188 6159 3531
Carbon Steel Tube Information
Seamless steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes have square, elliptical, triangular, hexagonal, melon-shaped, star-shaped, and finned pipes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, petrochemical cracking pipes, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

| Product name | Hot rolled/cold rolled square pipe | |
| Technique | Longitudinal Electronic Resistance Welding (ERW) High Frequence Welding (HFW) |
|
| Material Quality | Steel Grade | Q195 Q215 Q235 Q345,etc. |
| Material Type | Available in cold rolled and hot rolled | |
| Size | W.T. | 1.0mm-20.0mm |
| Diameter | 40x40mm | |
| Length | 1m-12m or as your requirement | |
| Surface | Galvanized, 3PE, painting, coating oil, steel stamp, etc. | |
| Ends | Plain ends, cutting, threaded with coupling, beveled, flange, etc. | |
| Inspection | With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection, With Nondestructive Inspection | |
| Certification | BV, ISO, IAF or as per customer. | |
| Application | construction pipe, structure pipe, Greenhouse pipe, Building material tube, Furniture tube, etc | |
| Trade Terms | FOB, CFR, CIF, EXW. | |
| Payment Terms | T/T,L/C at sight 30%T/T in advance,balance 70% should be paid after receiving the copy of BL. |
|
| Loading Port | Tianjin port | |
| Cooperation Ship-owner |
MSK, CMA, MSC, HMM, COSCO, UA, NYK, OOCL, HPL, YML, MOL | |
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FAQ:
Q1:Why choose us?
A1: We are a multi-specialty supplier which has deeply engaged in steelmarket more than 15 years , our major product is including steel plate ,steel coil ,steel pipe ,GI steel ,PPGI,PPGL ,steel profile,and aluminum&copper alloy series etc
Q2. How do you control quality ?
A2: Our factory has special QA/QC department , each order will be inspection before delivery ,also we will issue the original MTC to customer .Third Party Inspection Included SGS,TUV,BV is available.
Q3. What is your payment terms ?
A3:Normally our payment terms is 30%T/T in advance , balance paymentwill be paid before delivery , but we also can accept L/C at sight , Payment again copy of bill of lading etc ,western union MoneyGram, payment methods can be negotiated and customized with customers
Q4. What is your trade terms ?
A4: EXW ,FOB,CFR,CIF ,CIP ,DAP ,DDP etc
Q5. Can you provide sample ?
A5: of course , if it is normal size and we have stock in warehouse , we will supply sample free of charge , but the courier freight will be borne by your company
Q6: Can i visit your factory ?
A6: For sure , warmly welcome to visit our factory at your convenience, We will have special staff to pick you up at the airport ,rail station ,also will drive you to visit our factory . we will provide you with necessary assistance with accommodation .
Q7: What product information do i need to provide for inquiry ?
A7:Normally ,you’d better send us the material,grade , thickness ,width , length , quantity etc , so that we can make the accurate quotation asap .
Q8: Which sea port do you usually use ?
A8: In General , Tianjin, Qingdao ,Shanghai sea port or according to your special need . By container shipment or By bulk as you choose
Q9: What is your delivery time ?
Normally , after receipt of your deposit ,the lead time will be 7-10 working days !
Q10: What’s the MOQ? Do you accept OEM&ODM?
A10: Sample order can be 1 tons , normally official order MOQ is 25tons, OEM&ODM is available.




