Kobs India has built a strong reputation in the industry with its amazing product line and outstanding customer service. We give preference to quality and reliability of our products. We make use of premium resources and machinery in the manufacturing process to make sure that all our products meet international standards. We are manufacturers, suppliers and exporters of Monel Weld Neck Flanges that are made with caution and care, to offer you the most precision made flanges.
Kobs India offers a wide range of Monel Flanges, As one of the pioneering manufactures and distributors, this company uses high-quality products and offers them at competitive prices to its customers in order to satisfy their specific needs. Monel is of two types; Monel 400 ( 2.4360) and Monel K500. ASME SB564 Monel UNS N04400 Weld Neck Flanges are utilised in pharmaceutical equipment, heat exchangers, condensers, power generation, etc. ANSI B 16.47 Monel DIN 2.4375 Threaded Flanges are welded to a pipe or fitting with a single full penetration.
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Monel : Grade: Monel 400 ( 2.4360), Monel K500, Monel R-405 |
| Grade | Ni | Fe | C | Mn | Si | Cu | Al | Ti | S |
|---|---|---|---|---|---|---|---|---|---|
| K500 | 63.0 min | 05 - 2 | 0.25 max | 1.5 max | 0.5 max | 27.0 - 33.0 | 2.3 - 3.15 | 0.35 - 0.85 | 0.010 max |
| 400 ( 2.4360) | 63.0- 70.00 max | 2.50 max | 0.3 max | 2.00 max | 0.50 max | Remainder | - | - | 0.024 max |
| Grade | Tensile (ksi) | .2% Yield (ksi) | Elongation % | Hardness (HRb) |
|---|---|---|---|---|
| 400 ( 2.4360) | 75 to 90 | 25 to 50 | 60 to 35 | 60 to 80 |
| K500 | Psi – 1,60,000 , MPa – 1100 | Psi – 1,15,000 , MPa – 790 | 20 % | - |
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Stainless Steel : Grade: 304 (1.4301), 304L (1.4307), 304H (1.4948), 309 (1.4828), 309S, 310, 310S (1.4845) , 316 ( 1.4401), 316H, 316L( 1.4404 /1.4432) , 317, 317L (1.4438), 321 (1.4541), 321 H(1.4878), 347 (1.4550), 347H (1.4961), 904L (1.4539) Duplex Steel: Grade: 2205 (1.4507) Super Duplex Steel: Grade: 2507 (UNS S32750) (1.4410) (UNS S32750) Inconel : Grade: Inconel 600 (2.4640), Inconel 601 (2.4851), Inconel 625 (2.4856), Inconel 718(2.4668) Incoloy : Grade: Incoloy 800 (2.4958), Incoloy 800H, Incoloy 800HT Nickel : Grade: Nickel 200, Nickel 201 Titanium : Grade: Gr.1 (3.7025) , Gr.2 (3.7035) , Gr.3:(3.7055) , Gr.5(3.7164/65), Gr. 7(3.7235) , Gr. 11 (3.7225) Hastalloy : Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X |
The manufacturing process of flange mainly is divided into forging, casting, cutting and rolling. .
The casting and forging flanges have advantages that the blanks of them have accurate shape, size and low costs and only need simple process. But forging flanges have manufacturing defects such as blowholes, cracks, etc and have not very smooth internal organization streamline. The obvious advantages of forging flanges are that they can be forged in various shapes and they have low costs. .
Forging flanges generally have lower carbon content than the casting flanges and are not easy to rust. They have smooth streamline, uniform internal organization, and better mechanical performance than that of casting flanges. There are no defects, such as blowholes and cracks existing in the casting flanges. Forging flanges are able to withstand higher shear and drawing forces than casting flanges. However, if adopting improper forging process, it will also cause appearance of large, uneven grains and solidification cracking phenomenon, resulting in higher cost than the casting flanges. .
We can distinguish between the casting flanges and forging flanges from the different production process. To take the centrifugal flange as an example, it is a kind of casting flange. Centrifugal flanges are produced by a precision casting method, which makes the flanges’ organization smaller than those commonly produced by sand casting and improves the quality of flanges, making fewer occurrences of loose tissue, pore, sand hole etc.
Cutting process refers to producing flanges by directly cutting a round plate with the inner diameter, outer diameter and thickness which can be further processed later from the middle plate, and then processing the bolt hole and waterline. The maximum diameter of such flanges is limited by the width of the middle plate.
Cutting process refers to producing flanges by cutting stripes from the middle plate and then rolling them into round shape. This process is mainly used for the production of large flange. After the rolling process, weld and then flatten the round shape, and finally process the serrated spiral finish and bolt hole.
