Nickle Alloy Flat Welding Flange Incoloy 925 Pharmaceutical Metallurgy Machinery

Brand Name:DINGSCO
Certification:ISO 9001:2015,PED 2014/68/EU,API 6A,API-20B,TSG,NORSOK
Model Number:According to customers requirements
Minimum Order Quantity:Negotiable
Delivery Time:(Sample Order) 7 days
Payment Terms:T/T
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Location: Changsha Hunan China
Address: No. 2319, Building 2, Dongfang Furong Garden, No. 582 Yuanda 1st Road, Hehuayuan Street,Furong District, Changsha, Hunan Province, China.
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Nickle Alloy Flat Welding Flange Incoloy 925 Pharmaceutical Metallurgy Machinery


Nickle Alloy Flange, also known as a flange rim or flange, is a part that connects pipes to each other at the ends, and it is also used on equipment inlets and outlets for connecting two pieces of equipment, such as a reducer flange. A flange connection or flange joint refers to a detachable connection consisting of a flange, gasket, and bolt, which together form a combined sealing structure.


Welding Quality:


Many customers question whether the quality of welded steel plate flanges is superior to that of forged welded flanges. In reality, the quality of welded steel plate flanges is equivalent to that of forged welded flanges. However, what aspects of welded steel plate flanges cannot be guaranteed? That is, the material of welded steel plate flanges is the least secure, as during the general production process, the density of welded steel plate flanges is not an issue. But during the production process, the blanks of welded steel plate flanges are rarely inspected. Therefore, after production, the material of welded steel plate flanges that have not been inspected cannot be guaranteed.


Types of Flat Welding Flange:

  • Plate Welding Flange (PL): The plate welding flange is suitable for steel pipe connections with a nominal pressure not exceeding 2.5 MPa. The sealing surface of the plate welding flange can be made in three types: smooth, concave-convex, and tenon groove. The smooth plate welding flange is the most widely used due to its versatility. It is commonly employed in situations where the medium conditions are relatively mild, such as low-pressure non-purified compressed air and low-pressure circulating water.
  • Socket Welding Flange (SO): The socket welding flange (SO) has a lower neck height, which enhances the stiffness and load-bearing capacity of the flange. Compared to welding neck flanges, the socket welding flange requires more welding work and consumes more welding rods. It is not suitable for high-temperature, high-pressure, or applications that involve repeated bending and temperature fluctuations. However, the socket welding flange is more popular due to its ease of on-site installation, which eliminates the need for the weld bead beating process.

INCOLOY ALLOY 925 (UNS N09925) is an age hardenable nickel-iron-chromium alloy with additions of molybdenum, copper, titanium and aluminum. The alloy’s chemical composition is designed to provide a combination of high strength and

excellent corrosion resistance. The nickel content is sufficient for protection against chloride-ion stress corrosion cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing chemicals. The molybdenum aids resistance to pitting and crevice corrosion. The alloy’s chromium content provides resistance to oxidizing
environments. The titanium and aluminum additions cause a strengthening reaction during heat treatment.
Applications:
INCOLOY alloy 925 is used in various applications requiring a combination of high strength and corrosion resistance. Because of the alloy’s resistance to sulfide stress cracking and stress-corrosion cracking in “sour” (H2S containing) crude oil and
natural gas, it is used for down-hole and surface gas well components including tubular products, valves, hangers, landing nipples, tool joints and packers. The alloy is also useful for fasteners, marine and pump shafting and high-strength piping systems.

Microstructure and Metallurgy:


INCOLOY alloy 925 is an austenitic nickel-iron-chromium alloy made precipitation hardenable by additions of titanium

and aluminum. The precipitation-hardening (age hardening) heat treatment causes precipitation of gamma prime phase, Ni3 (Al, Ti). The phase greatly increases both the hardness and strength of the alloy. Exposure to elevated temperatures also causes
formation of other phases, including eta and sigma.

.


Mechanical Properties:


Mechanical properties at room temperature of solution annealed and solution-annealed plus aged products. INCOLOY alloy 925 retains a substantial portion of its strength at temperatures up to about 1200°F (650°C). The compression test result, at room temperature, for a solution-annealed and aged bar was 122.7 ksi (846 MPa) and the yield strength tension test result was 123.5 ksi (851 MPa).

Chemical Composition:


ElementNiCrFeMoCoTiAlMnSiNbCS
Minimum(%)4219.5-2.51.51.90.11.00.50.50.030.03
Max(%)4622.5223.53.02.40.5-----

Elevated Temperature Dynamic Young s Modulus and Shear Modulus Values for INCOLOY alloy 925
(hot rolled round, solution-annealed and aged)
:


Temperature
Young's
Modulus
Shear Modulus
Poisson's Ratio
103 ksi
GPa
103 ksi
GPa
702128.919911.2770.293
1003828.819911.1760.299
2009328.319510.8750.308
30014927.819210.6730.316
40020427.318810.4720.315
50026026.818510.2700.317
60031626.318210.0690.319
70037125.91789.8680.319
80042725.41759.6660.323
90048224.91729.4650.323
100053824.41689.2640.324

Thermal Properties:


TemperatureCoefficient of
Expansion
Specific Heat
°F10-6 in/in/°FBtu/lb/°F
70-
0.104
2007.8
0.109
4008.1
0.116
6008.4
0.122
8008.5
0.129
10008.7
0.136
12009.0
0.143
14009.5
0.150
1600-
0.157




Processing Flow Chart:




China Nickle Alloy Flat Welding Flange Incoloy 925 Pharmaceutical Metallurgy Machinery supplier

Nickle Alloy Flat Welding Flange Incoloy 925 Pharmaceutical Metallurgy Machinery

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