As a specialized manufacturer of nickel alloy piping components, our factory produces ASTM B564 Monel 400 socket weld flanges engineered for the most demanding corrosive service environments.
With decades of metallurgical expertise and ISO 9001-certified production facilities in China, we deliver precision-forged flanges that meet the exacting requirements of offshore, chemical processing, and marine engineering applications worldwide.
What is ASTM B564 Monel 400 Socket Weld Flange?
A socket weld flange features a recessed "socket" into which the pipe is inserted. The connection is secured with a single fillet weld on the outer side of the flange. Unlike slip-on flanges, the socket weld design provides a smooth bore and better internal flow characteristics, significantly reducing turbulence and erosion at the joint.
Monel 400 (UNS N04400) is a "puritan alloy," composed of approximately 63% nickel and 30% copper. Our ASTM B564 Monel 400 socket weld flanges provide a secure, leak-proof connection ideal for high-pressure piping systems.
Its benefits include resistance to acids, alkalis, and saltwater, along with high strength across temperatures up to 1000°F (538°C). Our flanges undergo stringent testing, such as hardness, flattening, and pitting resistance, to guarantee performance.
Specification and Material Grade of Monel 400 Socket Weld Flange
|
Specification |
Details |
|
Standard |
ASTM B564 / ASME SB564 |
|
Size |
1/2" (15 NB) to 48" (1200 NB) |
|
Class / Pressure Rating |
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
|
Face Type |
Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
|
Connection |
Socket Weld |
|
International Standards |
ASME B16.5, ASME B16.47, MSS SP-44, API-605, AWWA, Custom Drawings |
Equivalent Grades of Monel 400 Socket Weld Flanges
|
Standard |
Werkstoff Nr. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
|
Monel 400 |
2.4360 |
N04400 |
NW 4400 |
NA 13 |
МНЖМц 28-2,5-1,5 |
NU-30M |
NiCu30Fe |
We produce these flanges in custom sizes and thicknesses to meet specific project needs, adhering to equivalent international grades for global compatibility.
Monel 400 Socket Weld Flange Pressure Rating
Pressure ratings per ASME B16.5 (in bar):
|
Temp (°C) |
150# |
300# |
400# |
600# |
900# |
1500# |
2500# |
|
-29 to 38 |
19.8 |
51.7 |
68.9 |
103.4 |
155.1 |
258.6 |
430.9 |
|
50 |
19.5 |
51.5 |
68.7 |
103.0 |
154.6 |
257.6 |
429.4 |
|
100 |
16.5 |
50.3 |
67.1 |
100.7 |
151.0 |
251.7 |
419.5 |
|
150 |
15.8 |
45.5 |
60.7 |
91.0 |
136.5 |
227.5 |
379.2 |
|
200 |
13.8 |
43.8 |
58.3 |
87.5 |
131.3 |
218.8 |
364.7 |
|
250 |
12.1 |
41.4 |
55.2 |
82.7 |
124.1 |
206.8 |
344.7 |
|
300 |
10.2 |
39.8 |
53.1 |
79.6 |
119.5 |
199.1 |
331.8 |
|
350 |
9.0 |
38.4 |
51.2 |
76.8 |
115.2 |
192.0 |
320.0 |
|
400 |
7.4 |
36.5 |
48.7 |
73.0 |
109.5 |
182.6 |
304.3 |
|
425 |
6.5 |
35.7 |
47.6 |
71.4 |
107.1 |
178.5 |
297.5 |
|
450 |
5.5 |
34.6 |
46.2 |
69.3 |
103.9 |
173.2 |
288.7 |
|
475 |
4.6 |
28.8 |
38.4 |
57.6 |
86.4 |
144.0 |
240.0 |
|
500 |
3.7 |
20.5 |
27.3 |
41.0 |
61.4 |
102.4 |
170.6 |
400 Monel Standard Socket Weld Flange Sizes Chart
Dimensions per ASME B16.5 (in inches, for Class 150):
|
NPS |
O.D. |
Flange Thickness |
Hub O.D. |
Socket Depth |
Bore |
Bolt Circle |
Bolt Holes |
Hole Dia. |
|
1/2 |
3.50 |
0.44 |
1.19 |
0.62 |
0.62 |
2.38 |
4 |
0.62 |
|
3/4 |
3.88 |
0.50 |
1.50 |
0.62 |
0.82 |
2.75 |
4 |
0.62 |
|
1 |
4.25 |
0.56 |
1.94 |
0.69 |
1.05 |
3.12 |
4 |
0.62 |
|
1-1/4 |
4.62 |
0.62 |
2.31 |
0.81 |
1.38 |
3.50 |
4 |
0.62 |
|
1-1/2 |
5.00 |
0.69 |
2.56 |
0.88 |
1.61 |
3.88 |
4 |
0.62 |
|
2 |
6.00 |
0.75 |
3.06 |
1.00 |
2.07 |
4.75 |
4 |
0.75 |
|
2-1/2 |
7.00 |
0.88 |
3.56 |
1.12 |
2.47 |
5.50 |
4 |
0.75 |
Weight Chart of Monel 400 Socket Weld Flange
Approximate weights per ASME B16.5 Class 150 (in kg):
|
NPS |
RF Weight |
|
1/2 |
0.4 |
|
3/4 |
0.5 |
|
1 |
0.8 |
|
1-1/4 |
1.0 |
|
1-1/2 |
1.4 |
|
2 |
2.0 |
|
2-1/2 |
3.2 |
|
3 |
3.8 |
|
4 |
6.8 |
|
6 |
10.5 |
|
8 |
18.0 |
|
10 |
25.0 |
|
12 |
38.0 |
|
14 |
52.0 |
|
16 |
70.0 |
|
18 |
85.0 |
|
20 |
110.0 |
|
24 |
165.0 |
ASTM B564 Monel 400 Socket Weld Flange Chemical Composition
|
Element |
Content (%) |
|
Nickel (Ni) |
63.0 min |
|
Copper (Cu) |
28.0 - 34.0 |
|
Iron (Fe) |
2.5 max |
|
Manganese (Mn) |
2.0 max |
|
Carbon (C) |
0.3 max |
|
Silicon (Si) |
0.5 max |
|
Sulfur (S) |
0.024 max |
400 Monel Socket Weld Flange Mechanical Properties
|
Property |
Value |
|
Density |
8.8 g/cm³ |
|
Melting Point |
1350°C (2460°F) |
|
Tensile Strength |
550 MPa (80,000 psi) min |
|
Yield Strength (0.2% Offset) |
240 MPa (35,000 psi) min |
|
Elongation |
40% min |
Our Factory Manufacturing Process
Our factory employs state-of-the-art processes to manufacture ASTM B564 Monel 400 socket weld flanges, ensuring precision and quality.
Raw Material Selection: We source premium Monel 400 billets certified to ASTM B564, verifying chemical composition through spectrometry.
Forging: Using hot or cold forging techniques, we shape the flanges under controlled temperatures to achieve optimal grain structure and strength. Our facilities include hydraulic presses up to 5000 tons for uniform forging.
Machining: CNC lathes and mills precisely machine sockets, faces, and bolt holes to exact dimensions per ASME B16.5. Socket depths and bores are tolerances-checked for perfect pipe fit.
Heat Treatment: Flanges undergo solution annealing at 870-980°C followed by rapid cooling to enhance corrosion resistance and mechanical properties.
Quality Assurance: Each flange is inspected via ultrasonic testing, dimensional verification, and mechanical tests (tensile, hardness). We provide Mill Test Certificates (MTC) per EN 10204 3.1.
Surface Finishing: Options include pickling, passivation, or custom coatings for added protection.
Our ISO 9001-certified factory produces in batches from prototypes to large volumes, with lead times as short as 2-4 weeks.
Choose our Monel 400 socket weld flanges for unmatched quality and performance. Contact us today for quotes, customization, or consultations.
