Oct 10, 2025 Leave a message

ASTM B564 Monel 400 LWN Flange Long Neck Welding Flange

 
ASTM B564 Monel 400 LWN flange long neck welding flange
ASTM B564 Monel400 LWN Flange Long Neck Welding Flange
01

ASTM B564 Monel 400 LWN flange long neck welding flange

ASTM B564 Monel 400 long-neck weld-on flanges are high-strength, corrosion-resistant nickel-copper alloy flanges designed for demanding applications involving high pressures, high temperatures, and corrosive chemicals, particularly hydrofluoric acid and chloride solutions. These flanges feature a long tapered hub for reinforcement and a single, full-penetration weld for connecting pipe. Manufactured to standards such as ASTM B564 and ASME B16.5, they are available in a variety of sizes and pressure ratings.

02

What is ASTM B564 UNS N04400 material?

ASTM B564 UNS N04400 flanges, also known as Monel alloy 400, are a nickel-based alloy with a certain amount of copper added. ASTM B564 UNS N04400 flanges typically exhibit high tensile strength over a wide temperature range, up to 1000 degrees Fahrenheit (approximately 477 degrees Celsius).

ASTM B564 UNS N04400 Material
 

LWN Flange Design
Integral Neck: Features a thickened, cylindrical neck for increased strength and can be welded directly to the pipe.
Application: This design is ideal for high-pressure, high-temperature applications, such as offshore drilling platforms and oil and gas pipelines.
Standard Compliance: The flange end and sealing surface design conform to ANSI/ASME B16.5 standards.

 

Technical drawings of ASTM B564 Monel 400 LWN flange long neck welding flange

150LB LWN Flange RF

 

Dimensions and weights of ASTM B564 Monel 400 LWN flange long neck welding flange

SIZE

FLANGE

BARREL

BOLTING

Raised
Face Dia.
R

LENGTH
L

WEIGHT

Nom

Unit

Bore

B

OD

O

Thk

T

OD

D

No. OF
Holes

Hole
Size

Bolt
Circle
C

POUND
KILO

1/2

mm
inches

12,7
0,50

88,9
3,50

11,2
0,44

31,8
1,25

4

15,7
0,62

60,5
2,38

34,9
1,38

228,6
9,00

3
1,36

3/4

mm
inches

19,1
0,75

98,6
3,88

12,7
0,50

41,1
1,62

4

15,7
0,62

69,9
2,75

42,9
1,69

228,6
9,00

5
2,27

1

mm
inches

25,4
1,00

108,0
4,25

14,2
0,56

50,8
2,00

4

15,7
0,62

79,2
3,12

50,8
2,00

228,6
9,00

7
3,17

1 1/4

mm
inches

31,8
1,25

117,3
4,62

15,7
0,62

60,5
2,38

4

15,7
0,62

88,9
3,50

63,5
2,50

228,6
9,00

10
4,54

1 1/2

mm
inches

38,1
1,50

127,0
5,00

15,5
0,69

66,5
2,62

4

15,7
0,62

98,6
3,88

73,0
2,88

228,6
9,00

12
5,44

2

mm
inches

50,8
2,00

152,4
6,00

19,1
0,75

82,6
3,25

4

19,1
0,75

120,7
4,75

92,1
3,63

228,6
9,00

15
6,81

2 1/2

mm
inches

63,5
2,50

177,8
7,00

22,4
0,88

95,3
3,75

4

19,1
0,75

139,7
5,50

104,8
4,13

228,6
9,00

22
9,98

3

mm
inches

76,2
3,00

190,5
7,50

23,9
0,94

108,0
4,25

4

19,1
0,75

152,4
6,00

127,0
5,00

228,6
9,00

25
11,35

3 1/2

mm
inches

88,9
3,50

215,9
8,50

23,9
0,94

124,0
4,88

8

19,1
0,75

177,8
7,00

139,7
5,50

228,6
9,00

32
14,52

4

mm
inches

101,6
4,00

228,6
9,00

23,9
0,94

139,7
5,50

8

19,1
0,75

190,5
7,50

157,2
6,19

304,8
12,00

47
21,33

5

mm
inches

127,0
5,00

254,0
10,00

23,9
0,94

165,1
6,50

8

22,4
0,88

215,9
8,50

185,7
7,31

304,8
12,00

57
25,87

6

mm
inches

152,4
6,00

279,4
11,00

25,4
1,00

196,9
7,75

8

22,4
0,88

241,3
9,50

215,9
8,50

304,8
12,00

75
34,05

8

mm
inches

203,2
8,00

342,9
13,50

29,4
1,12

247,7
9,75

8

22,4
0,88

298,5
11,75

269,9
10,63

304,8
12,00

102
46,30

10

mm
inches

254,0
10,00

406,4
16,00

30,2
1,19

304,8
12,00

12

25,4
1,00

362,0
14,25

323,9
12,75

304,8
12,00

143
64,92

12

mm
inches

304,8
12,00

482,6
19,00

31,8
1,25

365,3
14,38

12

25,4
1,00

431,8
17,00

381,0
15,00

304,8
12,00

205
93,07

14

mm
inches

355,6
14,00

133,4
31,00

35,1
1,38

406,4
16,00

12

28,4
1,12

476,3
18,75

412,8
16,25

304,8
12,00

211
95,79

16

mm
inches

406,4
16,00

596,9
23,50

36,6
1,44

457,2
18,00

16

28,4
1,12

539,8
21,25

469,9
18,50

304,8
12,00

246
111,68

18

mm
inches

457,2
18,00

635,0
25,00

3,96
1,56

508,0
20,00

16

31,8
1,25

577,9
22,75

533,4
21,00

304,8
12,00

270
122,.58

20

mm
inches

508,0
20,00

698,5
25,50

42,9
1,69

558,8
22,00

20

31,8
1,25

635,0
25,00

584,2
23,00

304,8
12,00

311
141,19

24

mm
inches

609,6
24,00

812,8
32,00

4,78
1,88

666,8
26,25

20

35,1
1,38

749,3
29,50

692,2
27,25

304,8
12,00

423
192,04

 

Main Applications
Marine: Widely used in marine applications due to its resistance to seawater and saline solutions.
Chemical Processing: Suitable for handling corrosive media, including various acids, alkalis, and chloride solutions.
Oil & Gas: Suitable for the harsh environments of the oil and gas industry.

 

Advantages
High Strength and Durability: High tensile strength and durability make it suitable for critical applications.
Corrosion Resistance: Withstands harsh chemical and saltwater environments without significant performance degradation.
Leak-Proof Connection: The weld neck design ensures a strong and leak-proof joint when properly welded.
Non-Magnetic: It is a non-magnetic alloy.

Gnee Steel

 

About Gnee Steel

Gnee Steel specializes in the production of various nickel-based alloys. Gnee Steel's product packaging includes steel strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during sea transportation, and then secured with steel strapping. Wooden boxes/crates: Pipes are typically packaged in wooden boxes or crates to protect them during transportation, especially those that are longer or have larger diameters. Seaworthy export packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin packaging: This prevents rain, seawater, and other external factors from penetrating the export wooden crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing inquiries or customized alloy material solutions, please contact us for a quote at ss@gneesteel.com.

Send Inquiry

whatsapp

Phone

E-mail

Inquiry