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China Q690D square tube seamless round steel pipe free sample

Product Details

Product Details

Product Description

Product Description
China Q690D square tube seamless round steel pipe free sample
There is an increasing demand for high strength, corrosion resistance and reliable performance in today's engineering field. In this context, the Q690D seamless square tube emerges as an excellent building material. Q690D seamless square tube is a kind of pipe made of high-strength low-alloy structural steel, with excellent characteristics and a wide range of applications. It not only has excellent toughness, fatigue resistance and corrosion resistance, but also good weldability and machinability, making it an ideal choice for many engineering projects.
Product information:size chart
Q690D square tube
Square Hollow Section (galvanized)
Rectangular Hollow Section (galvanized)
Size
(mm)
Thickness
(mm)
Size
(mm)
Thickness
(mm)
Size
(mm)
Thickness
(mm)
Size
(mm)
Thickness
(mm)
10*10
0.5-1.5
50*50
0.5-3.0
20*10
0.5-1.5
90*50
2.0-4.0
12*12
0.5-1.5
60*60
0.5-3.0
25*12
0.5-1.5
100*38
3.0-6.0
14*14
0.5-1.5
70*70
0.5-3.0
30*20
0.5-1.5
100*40
2.0-4.0
15*15
0.5-1.5
80*80
0.5-3.0
40*20
0.5-1.5
100*50
2.0-4.0
16*16
0.5-1.5
90*90
2.0-12.75
40*25
0.5-1.5
100*60
2.0-4.0
18*18
0.5-1.5
100*100
2.0-12.75
40*30
0.5-1.5
100*80
2.0-4.0
19*19
0.5-1.5
120*120
2.0-12.75
50*25
0.5-1.5
120*50
2.0-4.0
20*20
0.5-1.5
150*150
2.0-12.75
50*30
0.5-1.5
120*60
2.5-4.75
22.2*22.2
0.5-1.5
160*160
2.0-12.75
50*40
0.5-1.5
120*80
2.5-4.75
25*25
0.5-1.5
180*180
2.0-12.75
60*30
0.5-1.5
150*50
2.5-4.75
25.4*25.4
0.5-1.5
200*200
2.0-12.75
60*40
0.5-1.5
150*100
4.75-12.5
30*30
0.5-3.0
220*220
2.0-12.75
60*50
0.5-1.5
160*80
4.75-12.5
32*32
0.5-3.0
250*250
4.0-12.75
70*40
1.5-4.0
200*100
4.75-12.5
38*38
0.5-3.0
300*300
4.0-12.75
70*50
1.5-4.0
200*150
4.75-12.5
40*40
0.5-3.0
350*350
6.0-12.75
80*30
2.0-4.0
250*150
4.75-12.5
45*45
0.5-3.0
400*400
6.0-12.75
80*40
2.0-4.0
300*200
4.75-12.5
Surface treatment: galvanized, oiled, annealed
Length: 5.8m, 6.0m，12m
80*60
2.0-4.0
300*150
4.75-12.5
80*70
2.0-4.0
400*200
5.75-12.5
85*55
2.0-4.0
400*300
5.75-12.5

technological process:
1. incoming inspection
2. Head making(pressing,driving,cutting)
3. Rust removal and lubrication
4. Drawing(empty drawing or core lining)
5. Heat treatment(annealing,normalizing and tempering)
6. Mechanical test
7. Finishing(straightening and shaping)
8. Dimensional inspection
9. Head and tail cutting,weighing,packaging,warehousing and delivery
Features of Q690D square tube:
1. High strength：The Q690D seamless square tube is made of high-strength low-alloy structural steel with high yield strength and tensile strength.
2. Corrosion resistance: Q690D seamless square tube after proper anti-corrosion treatment, can resist corrosion and oxidation erosion.
3. Good weldability: The Q690D seamless square tube has good weldability and can be connected and assembled by conventional welding methods.
4. Machinability: Q690D seamless square tube has good plasticity and machinability, can be cold bending, hot bending and cutting processing operations.
5. Fatigue resistance: Q690D seamless square tube has excellent fatigue resistance, which can maintain the reliability and stability of the structure under repeated load for a long time.
6. Good wear resistance: Q690D seamless square tube after proper treatment and alloy design, has high wear resistance, can resist friction, wear and erosion of abrasive particles.
Application: Q690D square tube
1. Building structure: Q690D seamless square pipe plays an important role in large building structures. For example, the Shanghai Tower in China, a super high-rise building, uses Q690D seamless square tube as the main structural material. This high-strength material makes the building resistant to wind pressure and earthquake forces, providing stable structural support.
2. Bridge engineering: In bridge construction, Q690D seamless square pipe is widely used to support and connect structures. For example, the Ottawa Grand Canal Bridge in Canada uses Q690D seamless square pipe as the main beam material of the bridge. Its high strength and good machinability enable the bridge to span long distances, withstand large loads, and maintain the stability and durability of the structure.
3. Oil and gas transmission pipeline: Q690D seamless square pipe is also widely used in the field of oil and gas transmission pipeline. For example, a pipeline in an oil exploitation project uses Q690D seamless square pipe as the main material. Its high strength, corrosion resistance and fatigue resistance ensure that the piping system can withstand the demands of high pressure and complex operating conditions, while reducing the need for maintenance and replacement.
Company profile:
Yige special Steel Co., Ltd
Hunan Yige Special Steel Technology Co., LTD is a steel producing,processing,sales and logistics enterprise integrating Agricultural machinery square steel tube, special-shaped steel pipes,seamless pipes and other cold drawn materials. With more than 8 years of working experience, the company keeps in-depth cooperation with a number of steel upstream and downstream enterprises.The company can guarantee the quality of products from raw materials, producing process and other processes, and the price is also very competitive in the market.
Certificate display:
Quality Assurance,we are focused on the production of high quality.
Packing and delivery:
Loose package, Packaged in bundles(3Ton Max) , bundled pipes with two slings at the both end for easy loading and discharging, End with Plastic caps or as per requirement.
Cooperative partner:
SANY,SUNWARD,DOOSAN,ZOOMLION,CRRC,LEMKEN,ETC.
FAQ:
Q1:what can you buy from us?
A1:high-performance and high-precision of special-shaped steel pipes,seamless pipes and other cold drawn materials.
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:Will you delivery the goods on time?
A3:Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.
Q4: Can I get samples before order ?
A4: Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings.
Q5:How can I get a quotation from you ?
A5:You can leave us message, and we will reply every message in time. Or we may talk on line.
Company Profile
Hunan Yige Special Steel Science Technology Co.,Ltd
Hunan Yige Special Steel Technology Co.,Ltd was founded in August 2015.It’s a high-teach enterprise specialized in the production, R&D and sales of the high-performance and high-precision of special-shaped steel pipes, seamless pipes and other cold drawn materials.we are passed ISO9001, 14001, 18001 ,450001,CE and other system certification. The company has several sets of chain drawbench machine and hydraulic drawbench machine, one roller bottom type natural gas 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. Annual output more than 20,000 tons of seamless square pipe, special-shaped steel pipe, round pipe and other products with various materials, perimeter of 40-1800mm and wall thickness of 1-30mm. Our products are characterized by “high, precision, special and different” (high strength, high precision, special materials and special-shaped section). Various special-shaped steel pipes can be developed, designed and produced according to the different requirements of customized to meet the high-quality and high-performance, high strength, high toughness, easy welding, impact resistance, fatigue resistance, wear resistance and corrosion resistance. Our company developed The low carbon, low alloy and ultra-high strength seamless rectangular pipe has a yield strength of up to 1000 MPa, excellent comprehensive properties such as toughness, low temperature impact and fatigue life, and good application effect. Now our factory products have been widely served high-end equipment manufacturing industries at home and abroad, such as aviation, military industry, nuclear power, marine industry, shipbuilding, high-speed rail, engineering machinery, construction machinery, steel structure, petrochemical industry, agricultural machinery, textile machinery, passenger cars, special vehicles, vehicle axle, water conservancy and hydropower, communication towers, pressure vessels and other industries. We have cooperated with many well-known enterprises in many industries, such as China Hi-tech, China Railway Construction Heavy Industry, Zoomlion, Sany Heavy Industry, Sunward Intelligence, Yutong Heavy Industry, Dongfeng Motor, Chery Automobile, China Yto, Modern Agricultural Equipment, and have won the trust and praise of customers.
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