A few words from Yuantai Derun Steel Group
With an annual output of 10 million tons, Yuantai Derun is the largest manufacturer of ERW square pipes, rectangular pipes, hollow pipes, galvanized pipes, straight submerged arc welded steel pipes and spiral welded pipes in China. Annual sales reached 15 billion US dollars. Yuantai Derun has 59 black
ERW pipe production lines, 10
galvanized pipe production lines and 3 spiral welded pipe production lines. Square pipe 10 * 10 * 0.5mm to 1000 * 1000 * 60MM,
rectangular steel pipe 10 * 15 * 0.5mm to 800 * 1100 * 60MM, straight seam welded steel pipe φ 355.6-2000mm, spiral pipe Φ 219-2032mm, seamless pipe φ 21.3-820mm。 Yuantai Derun can produce square rectangular pipes conforming to ASTM A500, JIS g3466, en10219, din2240 and as1163. Yuantai Derun has the largest square tube inventory in China, which can meet the direct purchase needs of customers. Welcome to contact Yuantai Derun, e-mail: sales@ytdrgg.com , real-time connection factory inspection or factory visit!
1. Performance index analysis of
WELDING SQUARE TUBE- plasticity
Plasticity refers to the ability of metal materials to produce plastic deformation (permanent deformation) without damage under load.
2. Performance index analysis of square tube - hardness
Hardness is a pointer to measure the hardness of metal materials. At present, the most commonly used hardness measurement method in production is the indentation hardness method, which uses an indenter with a certain geometric shape to press into the surface of the metal material to be tested under a certain load, and determines its hardness value according to the degree of indentation.
Common methods include Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV).
3. Performance index analysis of square tube - fatigue
The strength, plasticity and hardness discussed above are all indicators of the mechanical properties of metals under static load. In fact, many machine parts work under cyclic load, in which case fatigue will occur.
4. Performance index analysis of square tube - impact toughness
The load acting on the machine at a high speed is called impact load, and the ability of metal to resist damage under impact load is called impact toughness.
5. Performance index analysis of
square tube - strength
Strength refers to the ability of metal materials to resist damage (excessive plastic deformation or fracture) under static load. Since the action modes of load include tension, compression, bending, shear, etc., the strength is also divided into tensile strength, compressive strength, bending strength, shear strength, etc. There is often a certain relationship between various strengths, and the tensile strength is generally used as the most basic strength indicator.
Specification of square and rectangular hollow sections
| OD(MM) |
THICKNESS(MM) |
OD(MM) |
THICKNESS(MM) |
OD(MM) |
THICKNESS(MM) |
OD(MM) |
THICKNESS(MM) |
| 20*20 |
1.3 |
60*120 80*100 90*90 |
1.50 |
180*180 |
3 |
300*800 400*700 550*550 500*600 |
|
| 1.4 |
1.70 |
3.5-3.75 |
9.5-9.75 |
| 1.5 |
1.80 |
4.5-4.75 |
11.5-11.75 |
| 1.7 |
2.00 |
5.5-7.75 |
12-13.75 |
| 1.8 |
2.20 |
9.5-9.75 |
15-50 |
| 2.0 |
2.5-4.0 |
11.5-11.75 |
|
| 20*30 25*25 |
1.3 |
4.25-4.75 |
12.0-25.0 |
|
| 1.4 |
5.0-6.3 |
100*300 150*250 200*200 |
2.75 |
300*900 400*800 600*600 500*700 |
|
| 1.5 |
7.5-8 |
3.0-4.0 |
9.5-9.75 |
| 1.7 |
50*150 60*140 80*120 100*100 |
1.50 |
4.5-9.75 |
11.5-11.75 |
| 1.8 |
1.70 |
11.5-11.75 |
12-13.75 |
| 2.0 |
2.00 |
12.5-12.75 |
15-50 |
| 2.2 |
2.20 |
13.5-13.75 |
|
| 2.5-3.0 |
2.5-2.75 |
15.5-30 |
|
| 20*40 25*40 30*30 30*40 |
1.3 |
3.0-4.75 |
150*300 200*250 |
3.75 |
300*1000 400*900 500*800 600*700 650*650 |
|
| 1.4 |
5.5-6.3 |
4.5-4.75 |
|
| 1.5 |
7.5-7.75 |
5.5-6.3 |
9.5-9.75 |
| 1.7 |
9.5-9.75 |
7.5-7.75 |
11.5-11.75 |
| 1.8 |
11.5-16 |
9.5-9.75 |
12-13.75 |
| 2.0 |
60*160 80*140 100*120 |
2.50 |
11.5-11.75 |
15-50 |
| 2.2 |
2.75 |
13.5-30 |
|
| 2.5-3.0 |
3.0-4.75 |
200*300 250*250 |
3.75 |
400*1000 500*900 600*800 700*700 |
|
| 3.25-4.0 |
5.5-6.3 |
4.5-4.75 |
|
| 25*50 30*50 30*60 40*40 40*50 40*60 50*50 |
1.3 |
7.5-7.75 |
5.5-6.3 |
9.5-9.75 |
| 1.4 |
9.5-16 |
7.5-7.75 |
11.5-11.75 |
| 1.5 |
75*150 |
2.50 |
9.5-9.75 |
12-13.75 |
| 1.7 |
2.75 |
11.5-11.75 |
15-50 |
| 1.8 |
3.0-3.75 |
12-13.75 |
|
| 2.0 |
4.5-4.75 |
15.5-30 |
|
| 2.2 |
5.5-6.3 |
200*400 250*350 300*300 |
4.5-6.3 |
500*1000 600*900 700*800 750*750 |
|
| 2.5-3.0 |
7.5-7.75 |
7.5-7.75 |
9.5-9.75 |
| 3.25-4.0 |
9.5-16 |
9.5-9.75 |
11.5-11.75 |
| 4.25-4.75 |
80*160 120*120 |
2.50 |
11.5-11.75 |
12-13.75 |
| 5.0-5.75 |
2.75 |
12-13.75 |
15-50 |
| 5.75-6.3 |
3.0-4.75 |
15.5-30 |
|
| 40*80 50*70 50*80 60*60 |
1.3 |
5.5-6.3 |
200*500 250*450 300*400 350*350 |
5.5-6.3 |
500*1100 600*900 700*800 750*750 |
|
| 1.5 |
7.5-7.75 |
7.5-7.75 |
9.5-9.75 |
| 1.7 |
9.5-9.75 |
9.5-9.75 |
11.5-11.75 |
| 1.8 |
11.5-20 |
11.5-11.75 |
12-13.75 |
| 2.0 |
100*150 |
2.50 |
12-13.75 |
15-50 |
| 2.2 |
2.75 |
15.5-30 |
|
| 2.5-3.0 |
3.0-4.75 |
280*280 |
5.5-6.3 |
600*1100 700*1000 800*900 850*850 |
|
| 3.25-4.0 |
5.5-6.3 |
7.5-7.75 |
9.5-9.75 |
| 4.25-4.75 |
7.5-7.75 |
9.5-9.75 |
11.5-11.75 |
| 5.0-6.0 |
9.5-9.75 |
11.5-11.75 |
12-13.75 |
| 40*100 60*80 70*70 |
1.3 |
11.5-20 |
12-13.75 |
15-50 |
| 1.5 |
100*200 120*180 150*150 |
2.50 |
15.5-30 |
|
| 1.7 |
2.75 |
350*400 300*450 |
7.5-7.75 |
700*1100 800*1000 900*900 |
|
| 1.8 |
3.0-7.75 |
9.5-9.75 |
11.5-11.75 |
| 2.0 |
9.5-9.75 |
11.5-11.75 |
12-13.75 |
| 2.2 |
11.5-20 |
12-13.75 |
15-50 |
| 2.5-3.0 |
100*250 150*200 |
3.00 |
15.5-30 |
|
| 3.25-4.0 |
3.25-3.75 |
200*600 300*500 400*400 |
7.5-7.75 |
800*1100 900*1000 950*950 |
|
| 4.25-4.75 |
4.25-4.75 |
9.5-9.75 |
11.5-11.75 |
| 5.0-6.3 |
9.5-9.75 |
11.5-11.75 |
12-13.75 |
| 50*100 60*90 60*100 75*75 80*80 |
1.3 |
11.5-11.75 |
12-13.75 |
15-50 |
| 1.5 |
12.25 |
15.5-40 |
|
| 1.7 |
140*140 |
3.0-3.75 |
300*600 400*500 400*400 |
7.5-7.75 |
900*1100 1000*1000 800*1200 |
|
| 1.8 |
4.5-6.3 |
9.5-9.75 |
|
| 2.0 |
7.5-7.75 |
11.5-11.75 |
20-60 |
| 2.2 |
9.5-9.75 |
12-13.75 |
|
| 2.5-3.0 |
11.5-25 |
15.5-40 |
|
| 3.25-4.0 |
160*160 |
3.00 |
400*600 500*500 |
9.5-9.75 |
1100*1000 1100*1100 |
|
| 4.25-4.75 |
3.5-3.75 |
11.5-11.75 |
20-60 |
| 5.0-5.75 |
4.25-7.75 |
12-13.75 |
|
| 7.5-8 |
9.5-25 |
15.5-40 |
|
01 Performance index analysis of square tube - good plasticity
Plasticity refers to the ability of metal materials to produce plastic deformation (permanent deformation) without damage under load.
- 02 Performance index analysis of square tube - high hardness
Hardness is a pointer to measure the hardness of metal materials. At present, the most commonly used hardness measurement method in production is the indentation hardness method, which uses an indenter with a certain geometric shape to press into the surface of the metal material to be tested under a certain load, and determines its hardness value according to the degree of indentation.
Common methods include Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV).
3 CERTIFICATION IS
COMPLETE
can produce steel pipe products of world
stardard,such as European standard,American standard,
Japanese standard,Astralian standard,natinal standard
and so on.
04 Performance index analysis of square tube - good impact toughness
The load acting on the machine at a high speed is called impact load, and the ability of metal to resist damage under impact load is called impact toughness.
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rectangular tube manufacturer selected into the top ten steel tube brands in China
THE QUALIFIED RATE OF PRODUCTS >100%
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