SCH40/SCH80 China Factory Direct High Quality Welded Square and Rectangular Steel Pipe
Cold bending welded round carbon steel pipe is a high-quality product designed to meet the needs of businesses looking to various types of mechanical steel pipes. The welded round carbon steel pipe offers a range of features and benefits that make it an ideal choice for businesses of all sizes.
Cold bending welded carbon round steel pipe is a kind of carbon steel pipe with high performance and high precision. The welded round steel pipe can be used in various fields, such as agricultural machinery, aerial work machinery, petrochemical machinery and hosting machiner and so on. The pipe has the characteristics of high precision, homogenizing wall thickness, uniform. The pipe size can be customized.

Features:
High performance:
yield strength 1000MPa ,length 16M,high strength,wear resistance, easy welding,impact resistance.
High precision:
OD,thickness,Rcorner,straightness,Perpendicularity can be controlled. Acid pickling,shot blasting, galvanization can provide.
Special:
Special material, special specification,special use,special requirement.
Special-shaped section:
According to the requirements of customers, we can produce all kinds of non-standard models with high speed and low cost.
Advantages of cold bending welded steel pipe:
1. High-strength:
Grain refinement and crystallinity increase during processing. 2. High-toughness: Plastic deformation occurs in the process of processing, so that the organization is refined and homogenized
3. Corrosion resistance
4.energy conservation and emission reduction: Cold rolling does not require high temperature, so it reduces energy consumption and smoke emissions, which is conducive to energy saving, emission reduction and environmental protection.
5.Material utilization:
The shape and size of materials can be better controlled during manufacturing, so raw materials can be used more efficiently and waste generated less.
The cold bending welded steel pipe's specifications:
| Product Name | Welded round steel tube |
| Material | Q235B,Q355B,Q500D,Q620D,Q690D,QSTE500TM,QSTE600TM,QSTE700TM,S355-960MC series, Weathering steel and other domestic and foreign types. |
| Standard | API 5L ASTM A106 A53, AP175-79, DIN2I5L , ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A179/A192/A213/A210 /370 WP91, WP11,WP22. DIN17440, DIN2448,JISG3452-54. |
| Outer Diameter | OD:25-450 mm WT:1-20 mm |
| Wall Thickness | SCH5S, SCH10S, SCH20S,SCH20, SCH30,STD, SCH40, SCH60, SCH80, SCH100, SCH140, SCH160,XS |
| Length | 5.8m 6m Fixed, 12m Fixed, 2-16m Random |
| Technology | Cold bending |
| Surface | Painting,anti-rust oil,shot blasting |
| Φ95*7 Superheavy precision round to square welded pipe machine set | ||||
| Dimension | Round | Square | Rectangular | |
| Outer Diameter | Φ25-Φ95mm | 20*20-75*75mm | 30*15-100*50mm | |
| Tickness | Low carbon steel& low alloy steel | 1.2-8mm | ≤6.5mm | |
| High strength steel | 1.2-6.0mm | ≤5.5mm | ||
| Productable material and thickness | Round | Square | ||
| low carbon steel Q235B | ≤8.0mm | ≤6.0mm | ||
| low alloy steel Q235B | ≤7.0mm | ≤5.5mm | ||
| high-strength steel QSTE500TM/Q500D | ≤6.0mm | ≤5.0mm | ||
| high-strength steel QSTE600TM/Q620D | ≤5.5mm | ≤4.5mm | ||
| high-strength steel QSTE700TM/Q690D | ≤5.0mm | ≤4.0mm | ||
| Φ194*15 Superheavy precision round to square welded pipe machine set | ||||
| Dimension | Round | Square | Rectangular | |
| Outer Diameter | Φ60-Φ194mm | 50*50-160*75160mm | 80*40-200*100mm | |
| Tickness | Low carbon steel& low alloy steel | 3.0-15mm | ≤14.0mm | |
| High strength steel | 3.0-12.0mm | ≤10.0mm | ||
| Productable material and thickness | Round | Square | ||
| low carbon steel Q235B | ≤15.0mm | ≤14.0mm | ||
| low alloy steel Q235B | ≤13.0mm | ≤12.5mm | ||
| high-strength steel QSTE500TM/Q500D | ≤11.0mm | ≤9.0mm | ||
| high-strength steel QSTE600TM/Q620D | ≤10.0mm | ≤8.0mm | ||
| high-strength steel QSTE700TM/Q690D | ≤9.0mm | ≤8.0mm | ||
| Length:4.0~12.0m, the actual thickness can be over 0.5-1 mm according to the specifications, inquiry for more details. Quality requirements: welding quality, outer diameter tolerance size, surface quality meet the corresponding standard requirements, smooth appearance. Outer diameter accuracy requirement: <0.10mm. roundness tolerance:< 0.08mm(except weld zone) Straightness:<1mm/m(Note: GB/T13793) cold-cut welded pipe cutting length deviation accuracy: <2mm | ||||
Company profile
Hunan Yige Special Steel Science Technology Co.,Ltd. was founded in 2015.It’s a high- tech enterprise specialized in the production, R&D and sales of the high-performance, high- precision, special-shaped seamless steel pipes and cold-bending welded pipes. we are already got ISO9001, ISO14001,ISO45001, BV, CE and other system certifications. The company has 500T /300T /200 Hydraulic drawbench machines, 60T/30T chain drawbench machines, multifunctional heat treatment furnace, several sets of head making, straightening, sawing, surface treatment and machining equipment, and equipped with a full set of physical and chemical testing equipment. The annual output more than 50,000 tons.
Our products are characterized by "high, precision, special and different" (high strength, high precision, special materials and special-shaped section). It can meet the needs of customers in various industries for materials with high strength, high toughness, easy welding, impact resistance, fatigue resistance, wear resistance, corrosion resistance. Now, our factory products have been widely served high-end equipment manufacturing industries at home and abroad, such as aviation, military industry, engineering machinery, ship and marine engineering, traffic vehicles, construction machinery, steel structure building, petrochemical industry, agricultural machinery, textile machinery, Communication tower and other industries.
Our factory
Certificate display
we hold with a number of practical patents, and has passed ISO9001, 14001, 45001, BV, CE and other system certifications.
Packaging and transportation
Cooperative partners
Cold bending steel tube can be made of various materials and specifications.Its has the characteristics of high strength,high toughness, easy welding, fatigue and low temperature resistance. It can be used into vary different filed owing to its special craft and excellent quality,Such as, Hoisting machinery, Aerial work machinery,Transport vehicle,Engineering vehicle, Petrochemical machinery, Ship and marine engineering, New energy industry,Agricultural machinery,Steel structure machinery, Other mechanical equipment.
Here are some pictures:
Agricultural machinery
FAQ
Q1: Are you a manufacturer or trading company? A1: We are manufacturer.
Q2: Can you do the design for us? A2: Yes, of course.
Q3: Is the sample free, and How long can I expect to get the sample? A3: It's free,if we have stock, we will send to you as soon as possible.
Q4: What is your terms of delivery? A4: EXW,FOB,CIF,C&F.
Q5: What's your payment term? A5: 30% deposit, Pay the 70% before delivery.
Q6: Where is your company? A6: Our company is in Hunan, China.
Q7: How long is the delivery period of the product? A7: After confirm the order and payment.
Q8: Where is your loading port? A8: SHANGHAI,TIANJIN,QINGDAO,SHENZHEN.
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