Product Introduction
Welded square pipe, as an important pipe, plays an irreplaceable role in modern industry and construction. Its high strength, corrosion resistance and plasticity make it the preferred material for many infrastructure and engineering projects, and it is widely used in oil pipelines, natural gas pipelines, building support structures, Bridges, guardrails and other aspects. The application prospect of welded square pipe is very broad, especially in the new energy, urbanization and transportation infrastructure construction, and its demand is growing.
Product 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.
Our Advantages
1. High speed production line:
our production line is almost fully automated it can improve our production speed mostly.
2. High precision:
The process adopts a combination of electric and manual adjustment roller technology, with high accuracy and stability.
3. Customization:
We support customer sample customization and free mold opening customization.
4. Quality assurance:
We cooperate with famous enterprises at home and abroad, and the product quality and company reputation are guaranteed.
5. Vary application field:
It can be used into different industry and shows excellent performance. 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.
Quality Assurance
1. Brand steel mill raw material
2. Advanced welding equipment and technology to ensure the quality
3. On line deburring, flaw detection and Welding line heat treatment to ensure the performance.
4. Combine with cold drawing technology, optimize welding line quality, improve overall performance.
5. Mold is designed by Germany software COPRA to ensure the stability.
Product specifications
Product name | High Quality cold bending welded rectangular steel pipe |
Size | 30*30-300*300 WT1.5-20(mm) |
Length | 1.5-16m or based on your request |
Standard | GBT6718-2017 |
Materials | Q235B/C/D/E, Q345B/C/D/E,Q390B/C/D/E, Q420C/D/E, Q550C/D/E, Q690C/D/E,370L/420L/440L/510L/550L/610L/700L/750L/800L QSTE380700 series，S355-960MC series，Weathering steel and other domestic and foreign types |
Surface | anti rust oil |
Technique | cold bending |
Usage | Civil engineering, architecture, steel towers, shipyard, scaffoldings, struts, mining machinery,agricultural machinery,aerial work machinery,hosting machinery |
Delivery time | Prompt delivery, or as order's quantity. |
Payment Terms | T/T or L/C or credit card |
Packing | Export standard package, suit for all kinds of transport, or as required. |
Product conversion Parameters
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 | ||
Thickness | 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 | ||
Thickness | 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 | |||||
The production process of welded steel pipe
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.
Certificate display
Packaging
Cooperative partners
Product applications
Agricultural machinery
Mining machinery
New energy industry
FAQ
Q1:How could you guarantee your products?
A1:Each piece of products is manufactured by certified workshops, inspected by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.
Q2: Can we visit your factory?
A2: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
Q3:Are you a factory or trading company?
A3: We are manufacturers and also do export trade.
Q4:Can I get some samples?
A4:Yes,We are pleased to provide you with samples of our products.