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UNS N08367/AL6-XN Stainless Steel Pipe

AL-6XN alloy is identified by the Unified Numbering System (UNS) designation of N08367. It is an austenitic stainless steel alloy with high nickel (24%), chromium (22%), molybdenum (6%), and nitrogen (0.18%) content and is commonly known as superaustenitic stainless steel (alloys such as 254 SMO (UNS S31254) and 904L (UNS N08904) also fall under the superaustenitic designation) while 2205 (UNS S32305/ S31803) and 2507 (UNS S32750) are duplex and super duplex stainless steel, respectively.AL-6XN is widely used because it is a 6% moly superaustenitic alloy providing strong resistance to chlorides found in ketchup, barbecue sauce, sports drinks, buffer solutions, and active pharmaceutical ingredients that commonly cause localized corrosion.
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AL-6XN alloy is identified by the Unified Numbering System (UNS) designation of N08367. It is an austenitic stainless steel alloy with high nickel (24%), chromium (22%), molybdenum (6%), and nitrogen (0.18%) content and is commonly known as superaustenitic stainless steel (alloys such as 254 SMO (UNS S31254) and 904L (UNS N08904) also fall under the superaustenitic designation) while 2205 (UNS S32305/ S31803) and 2507 (UNS S32750) are duplex and super duplex stainless steel, respectively.AL-6XN is widely used because it is a 6% moly superaustenitic alloy providing strong resistance to chlorides found in ketchup, barbecue sauce, sports drinks, buffer solutions, and active pharmaceutical ingredients that commonly cause localized corrosion.


Grade UNS AISI/ASTM ID W.Nr
AL-6XN N08367 AL6XN

Chemical Composition:
Grade % Ni Cr Mo Cu N
AL-6XN Min 23.5 20 6 - 0.18
Max 25.5 22 7 0.75 0.25

C Mn Si P S

- - - - -

0.03 2 1.0 0.04 0.03
Physical Performance:
Heat Treatment T*S Y*S El
Rm N/mm2 RP0.2N/mm2 A5 %
Solution 650 300 35



Seamless Stainless Steel Pipe

Standards: ASTM A312
Sizes: 1/4″ Thru 20”

Schedules: 10s, 40s, 80s, 160, and XXH

True 40, True 80


Welded stainless steel pipe
Standards: ASTM A312
Sizes: 1/4″ Thru 36″
Schedules: 10s, 20, 40s, 80s


Equipment:


NB

Size

OD

mm

40S

mm

5S

mm

10S

mm

S 10

mm

S 20

mm

S 40

mm

S 60

mm

XS/80S

mm

S 80

mm

S 100

mm

S 120

mm

S 140

mm

S 160

mm

XXS

mm


1/8”

10.29



1.24



1.73



2.41







1/4”

13.72



1.65



2.24



3.02







3/8”

17.15



1.65



2.31



3.20






15

1/2”

21.34

2.77

1.65

2.11



2.77


3.73

3.73




4.78

7.47

20

3/4”

26.67

2.87

1.65

2.11



2.87


3.91

3.91




5.56

7.82

25

1”

33.40

3.38

1.65

2.77



3.38


4.55

4.55




6.35

9.09

32

1 1/4”

42.16

3.56

1.65

2.77



3.56


4.85

4.85




6.35

9.70

40

1 1/2”

48.26

3.68

1.65

2.77



3.68


5.08

5.08




7.14

10.15

50

2”

60.33

3.91

1.65

2.77



3.91


5.54

5.54




9.74

11.07

65

2 1/2”

73.03

5.16

2.11

3.05



5.16


7.01

7.01




9.53

14.02

80

3”

88.90

5.49

2.11

3.05



5.49


7.62

7.62




11.13

15.24

90

3 1/2”

101.60

5.74

2.11

3.05



5.74


8.08

8.08






100

4”

114.30

6.02

2.11

3.05



6.02


8.56

8.56


11.12


13.49

17.12

125

5”

141.30

6.55

2.77

3.40



6.55


9.53

9.53


12.70


15.88

19.05

150

6”

168.27

7.11

2.77

3.40



7.11


10.97

10.97


14.27


18.26

21.95

200

8”

219.08

8.18

2.77

3.76


6.35

8.18

10.31

12.70

12.70

15.09

19.26

20.62

23.01

22.23

250

10”

273.05

9.27

3.40

4.19


6.35

9.27

12.70

12.70

15.09

19.26

21.44

25.40

28.58

25.40

300

12”

323.85

9.53

3.96

4.57


6.35

10.31

14.27

12.70

17.48

21.44

25.40

28.58

33.32

25.40

350

14”

355.60

9.53

3.96

4.78

6.35

7.92

11.13

15.09

12.70

19.05

23.83

27.79

31.75

35.71


400

16”

406.40

9.53

4.19

4.78

6.35

7.92

12.70

16.66

12.70

21.44

26.19

30.96

36.53

40.49


450

18”

457.20

9.53

4.19

4.78

6.35

7.92

14.27

19.05

12.70

23.83

29.36

34.93

39.67

45.24


500

20”

508.00

9.53

4.78

5.54

6.35

9.53

15.09

20.62

12.70

26.19

32.54

38.10

44.45

50.01


550

22”

558.80

9.53

4.78

5.54

6.35

9.53


22.23

12.70

28.58

34.93

41.28

47.63

53.98


600

24”

609.60

9.53

5.54

6.35

6.35

9.53

17.48

24.61

12.70

30.96

38.89

46.02

52.37

59.54


650

26”

660.40

9.53



7.92

12.70



12.70







700

28”

711.20

9.53



7.92

12.70



12.70







750

30”

762.00

9.53

6.35

7.92

7.92

12.70



12.70







800

32”

812.80

9.53



7.92

12.70

17.48


12.70







850

34”

863.60

9.53



7.92

12.70

17.48


12.70







900

36”

914.40

9.53



7.92

12.70

19.05


12.70








Chemical Composition

GradesC maxMn maxP maxS maxSi maxCrNiMo
3040.082.000.040.030.07518.00-20.008.00-11.00/
304L0.0352.000.040.030.07518.00-20.008.00-13.00/
3160.082.000.040.030.07516.00-18.0011.00-14.002.00-3.00
316L0.0352.000.040.030.07516.00-18.0010.00-15.002.00-3.00


Mechanical Properties

GradesItemperTensile PsiYield PsiElong %Rockwell Hardness
304Annealed85000-10500035000-7500020-5580-95
304LAnnealed
I1/8 Hard		80000-10500030000-7500020-5575-95
316Annealed85000 min35000 min50 min80 min

Annealed80000 min30000 min50 min75 min



Annealed, Pickling, Polished



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UNS N08367/AL6-XN Stainless Steel Pipe UNS N08367/AL6-XN Stainless Steel Tube