304 Stainless Steel Tube

304 Stainless Steel Tube

304 stainless steel is widely used as a kind of chromium - nickel stainless steel. As a widely used steel,its characteristic is corrosion resistance, good heat resistance, high strength in low temperature, easy to process on punching, bending and other thermal processing, non hardening heat...
Product description

304 stainless steel is widely used as a kind of chromium - nickel stainless steel. As a widely used steel,its characteristic is corrosion resistance, good heat resistance, high strength in low temperature, easy to process on punching, bending and other thermal processing, non hardening heat treatment (when temperature is -196℃ to 800℃), Corrosion resistant in the atmosphere,if it is in the industrial atmosphere or heavy pollution areas, you need to clean in time to avoid corrosion.

We are reckoned for the supplying and trading of a gamut of best quality s s 304 Welded Pipes & Tubes. The offered products are widely regarded for their sturdiness. Manufactured under the strict vigilance of experts and professionals at the vendor’s end, the whole range of high quality pipes and tubes offered by us is highly acclaimed. Our offered product is customized as per client's requirements.


Stainless Steel Seamless 304 Tube

use in food industries,chemical industries , electrielcal industries, genrater industries, shaft industries, cement industries, gais industries power project

STAINLESS STEEL 304 CHEMICAL COPM...

CARBAN 0.30,CR 18% , NIKEL 8-10% AVAILABLE..

STAINLESS STEEL 304 SEAMLESS TUBE SIZE.. 15MM NB TO 900 NB AVAIBLE..

IN SUCH 10,10S, 40, 40S, 80, XS ,160, XXS ,ECT.


Stainless Steel 304 Tube New Fresh Stock

Size 1/4' to 24

Thickness: 1.4mm , 1.5mm , 2mm , 3.5mm , 4.5mm , 6.5mm

Width: 1250mm , 1500mm

Length: 2500mm , 3000mm & Coils

Finish: 2b , BA (Mirror) , MAT/PVC


Features

Optimum quality

Abrasion resistant

Durable


Application Area

Decorating, chemical industrial, agricultural industry,shipping industry and other industries.


Chemical Composition(WT%)

C ≤ 0.08

Si ≤ 1.00

Mn ≤ 2.00

Cr: 18.0 to 20.0

P ≤ 0.060

S ≤ 0.030

Ni : 8 to 10.5%

 

Physical Property

Tensile Strength ≥ 520MPa

Yield Strength ≥ 205MPa

Elongatio ≥ 40%

 

The following table is the size of the pipe.

N.D

INCH

STANDARD

METRIC

INCH

COPPER

PVC

PE

DUCTILE

15A

1/2"

21.7




20

21.5-22.0

22

20A

3/4"

27.2/28.5




26

27.0-27.6

26

25A

1"

34.0

30

28.24

30

32

34.0-34.7

34

32A

1-1/4"

42.7

38

34.59

35

38

42.0-42.8

48

40A

1-1/2"

48.6

44.5

40.95

45

48

48.0-48.9

60

50A

2"

60.6

57.0

54.05

55

60

60.0-61.1

76

65A

2-1/2"

76.3

76.1

66.75

70

76

76.0-77.3

89

80A

3"

89.1

88.9

79.85

85

89

89.0-90.5

98

90A

3-1/2"

101.6







100A

4"

114.3

108.0

106.27

110

114

114.0-115.9

118

125A

5"

139.8

133.0

131.67

140

140

140.0-142.3

144

150A

6"

165.2

159.0

157.68

160

165

165.0-167.6

170

200A

8"

216.3

219.0

208.48


216

216.0-218.8

222

250A

10"

267.4

267.0

260.50


267

267.0-270.1

274

300A

12"

318.5

323.9

312.11


318

318.0-321.3

326

350A

14"

355.6

368.0

363.72




378

400A

16"

406.4

419.0

414.52




429

450A

18"

457.2

457.2

465.32




480

500A

20"

508.0

508.0

516.94




532

550A

22"

558.8

558.0

567.74





600A

24"

609.6

619.0

619.35




635

650A

26"

660.4







700A

28"

711.2







 (For any other detail information, please feel free to contact us.)

Usually, it only takes 3 working days for us to make delivery if the products are ready in stock.

Of course, unusual size can also be customized according your request.

 

FAQ: The 304 stainless steel decorating pipe.

Generally, the decorating pipe means the surface of pipe must be 2B or HL because the decorating pipe is mainly used in outside areas. In our daily life, most of the stainless steel pipe we can see in city are decorating pipe.

 

304 Stainless Steel Pipe Welding Technology Summary

1. Process Flow

Construction preparation → material entry, inspection → blanking → discharge line, supporting hanger installation → welding → weld seam polishing and pickling passivation treatment → weld inspection → pipeline irrigation test, flushing

2. Operation Essentials

2. 1 Construction Preparation

(1) Compile construction plan and construction schedule, set up quality work standard.

(2) operators to pipe workers, argon arc welder mainly, other types of cooperation, and argon arc welder should have the relevant departments issued a certificate.

(3) Construction materials according to the material plan, sent to the scene, and ensure the supply according to plan.

(4) On-site operators to carry out written technical clarification, on-site technology, safety disclosure.

2. 2 Welding Material Preparation

(1) The selection of pipe and pipe fittings should be based on the use of environmental media factors, chemical composition and the use of pressure, and the appropriate grade of products to ensure that the weld metal microstructure and mechanical properties.

(2) Argon gas should conform to the national standard "argon" GB4842, should choose the purity of 99.96% argon, if the impurity content too much, will weaken the Argon gas protection effect, directly affect the weld quality.

(3) Electrode material is cerium tungsten pole. The shape and diameter of the end head of the cerium-tungsten pole have a great influence on the stability of the welding process and the weld forming. Conical flat end effect is best, see Figure 1.1. Tungsten Electrode is selected according to the welding pipe thickness and welding current size, and the welding technical parameters are shown in Table 1.1.

图片1.png 

Fig. 1.1 Schematic Diagram of Cone Type

Pipe Diameter

Pipe Thickness(mm)

Welding Current

Arc Speed

Argon Flow

Applicable Tungsten Pole

Welding Vertical Angle

Welding Level Angle

Distance between Nozzle Welding Parts

DN32

DN40

0.8

30/A

45mm/min

5(L/min)

1.6mm

10~15o

50o~75o

≤2mm

DN50

1.0

35/A

45mm/min

5(L/min)

1.6mm

10~15o

50o~75o

≤2mm

DN65

1.2

40/A

45mm/min

5(L/min)

1.6mm

10~15o

50o~75o

≤2mm

DN80

DN100

1.5

45/A

60mm/min

5(L/min)

1.6mm

10~15o

50o~75o

≤2mm

The welding torch chooses the PW-150 type wind sniper, the nozzle aperture size directly affects the protection effect, the general nozzle aperture selection φ10mm.


3. Welding Methods and Technical Parameters

Socket-type Argon arc welding mode, so that the pipeline dissolved into one, is a "no joint connection" connection mode.

3.1 Concrete Construction Steps

3.1.1 stainless steel pipe after entering, not with cement slurry, cement, mortar, mixed concrete and welded steel pipe and other materials directly contact. According to the site and drawings to carry out material, pipe cutting and section of the treatment: the pipeline before cutting to confirm that no damage and deformation, the use of pipe cutter (stainless steel special cutting equipment) vertical and pipe axis line cutting, if the incision tilt, will lead to improper insertion amount. Remove burrs, chips and foreign bodies from the end of the tube after removal.

3.1.2 will have the material good stainless steel tube Inserts the fitting mouth.       

图片2.png

Stainless steel Argon arc welding socket-type pipe fittings SOCKET schematic 1.2

3.1.3 when welding, to ensure that the mouth and pipe on the same axis, a horizontal state, can not have an angle. The chalk powder with wide 40~50mm is brushed together outside the end of the socket, and the welding is applied after drying. First with four weeks spot welding, 3~5 point is appropriate.

3.1.4 welding operation with the waist as the center, the upper body radius as the power, rotating body from right to left rotation. This welding is easy to observe the molten pool, but also to better protect the molten pool. After the arc is normally burned to form the molten pool, the arc is transverse and forward arc, and the end part of the socket is welded in a ring circle to control the pool size and the molten pool temperature. The tungsten pole extends to a length of 4~8mm, and the extreme part of the tungsten is 1~1.5mm from the workpiece distance. nozzle to weld distance for 5~10mm. The arc should be quenched with the attenuation method when the intermediate arc is stopped or the welding is finished. That is, when the arc, the torch light to the slope, so that the arc out, and then the torch will be received to the arc, continue to 3~5s, so that the welding pool in the protection of the delay gas cooling, to prevent the production of shrinkage and cracks, after welding in the natural environment to cool.

 

304 Stainless Steel Square Tube (Packing)

图片3.png 

 


304 Stainless Steel Tube in Stock

图片4.png 

         


304 Stainless Steel Tube(Polished)

图片5.png

         


304 Stainless Steel Tube (Unpolished)   

图片23.png 

 


Hot Tags: 304 stainless steel tube, China, manufacturers, suppliers, wholesale, stock, price
Related Products
Feedback

Copyright © JIANGSU JIANGHEHAI STAINLESS STEEL CO.,LTD All Rights Reserved.Tel: +8613511656218