904L Pipe

904L Pipe

904L super austenitic stainless steel is low carbon high nickel, it belongs to molybdenum austenitic stainless steel and its activation passivation change ability is good. Also, its corrosion resistance is excellent in acetic acid, formic acid and phosphoric acid. 904L pipe (00cr20ni25mo4.5Cu)...
Product description

904L super austenitic stainless steel is low carbon high nickel, it belongs to molybdenum austenitic stainless steel and its activation passivation change ability is good. Also, its corrosion resistance is excellent in acetic acid, formic acid and phosphoric acid.

904L pipe (00cr20ni25mo4.5Cu) has better corrosion resistance of austenitic stainless steel. Because of the addition of 1.5% of copper, for the reduction of acids such as sulfuric acid and phosphoric acid also has excellent corrosion resistance .In addition, the welding use of low carbon characteristics.


Corrosion Resistance of 904L Pipe

Stainless steel seamless pipe, welded pipe (decorative pipe), square tube. Its specification: Seamless tube outside diameter 3-577mm, wall thickness 0.4-14mm Welding pipe outer diameter 6-219mm, wall thickness 0.3-4.0MM.

904L is a non-stabilized low carbon high alloy austenitic stainless steel. The addition of copper to this grade gives it greatly improved resistance to strong reducing acids, particularly sulfuric acid. 904L is also highly resistant to chloride attack - both pitting / crevice corrosion and stress corrosion... 
use in food industries,chemical industries , electrielcal industries, genrater industries, shaft industries, cement industries, gais industries power project.


Stainless Steel 904L Pipes SIZE.. 6MM TO 600 MM ..
Stainless Steel 904L Pipes SUCH.. 5,5S,10,10S,40,40S,80,ECT.
Stainless Steel 904L Pipes,Stainless Steel 904L sheet.Stainless Steel 904L rod
Stainless Steel 904L Pipe 
Stainless Steel 904L Pipes
Stainless Steel 904L tube
Stainless Steel 904L tubes
Stainless Steel 904L erw Pipe 
Stainless Steel 904L erw Pipes
Stainless Steel 904L erw tube
Stainless Steel 904L erw tubes
Stainless Steel 904L seamless Pipe 
Stainless Steel 904L seamless Pipes
Stainless Steel 904L seamless tube
Stainless Steel 904L seamless tubes

 

Application Area

Oil equipment, vegetable food pot,Acid making industry, pharmaceutical industry.


Chemical Composition(WT%)

C ≤ 0.02

Si ≤ 1.00

Mn ≤ 2.00

P ≤ 0.045

S ≤ 0.035

Cr: 19.0 to 23.0

Ni: 23 to 28

Cu: 1 to 2

Mo: 4 to 5

 

Physical Property

Tensile Strength ≥ 490MPa

Yield Strength ≥ 216MPa

Elongation ≥ 35%

 

The following table is the size of the pipe. For any other detail information, please feel free to contact us.

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







 

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: What should be pay attention to when welding 904L tube?

904L is a single phase austenite structure with high Ni and low C .Hot cracks are easy to occur in welding, especially in arc pits. So we should pay attention to the following tips.

1.Control the P, S and other toxic elements content in the base material.

2.Big groove, small fusion ratio.

3.Small heat input, no swinging allowed.

4.The interlayer temperature should be less than 60℃.

5.Reasonable welding order to reduce welding stress.

6.Choose low hydrogen welding materials.

7.Welding at the arc after grinding to avoid arcing crater crack.

8.Carbon arc gouging is not allowed on the back to prevent carburizing

 

904L Stainless Steel Tube

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904L Stainless Steel Pipe

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