welded round steel pipe, buy China hot sale high quality Q235B/Q355B welded hollow section round steel pipe on China Suppliers Mobile

Product Details

Product Introduction

Cold bending round steel tube can be made of various materials and specifications. It has the characteristics of high strength, high toughness, fatigue and low temperature resistance. It can be used into vary different filed owing to its excellent quality, such as agricultural, mining, new energy and so on. It must be an ideal choice for your business.

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	3030-300300 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	2020-7575mm	3015-10050mm
Thickness	Low carbon steel& low alloy steel	1.2-8mm	≤6.5mm
Thickness	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	5050-16075160mm	8040-200100mm
Thickness	Low carbon steel& low alloy steel	3.0-15mm	≤14.0mm
Thickness	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.