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Help CenterNXF UNS N10276 2.4819/NiMo16Cr15W/C276 OD DN15-1200 Nickel Alloy Forging Concentric or Eccentric Swaged Nipple
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Product Description
C276 Introduction
Super alloys or high performance alloys are available in a variety of shapes and contain elements in different combinations to obtain a specific result. These alloys are of three types that include iron-based, cobalt-based and nickel-based alloys. The ickel-based and cobalt-based super alloys are available as cast or wrought based alloys according to composition and application.
Super alloys have good oxidation and creep resistance and can be strengthened by precipitation hardening, solid-solution hardening and work hardening methods. They can also function under high mechanical stress and high temperatures and also in places that require high surface stability. HASTELLOY(r) C276 is a wrought corrosion-resistant alloy that resists the development of grain boundary precipitates that degrade corrosion resistance.
The following datasheet provides an overview of HASTELLOY(r) C276..
C276 Forging Concentric or Eccentric Swaged Nipple Introduction
Forged reducing Swaged Nipple, also known as forged diverter sections, are special type of variable diameter pipe fittings for high-pressure pipelines. They are processed through hot forging technology and differ from ordinary compression reducing pipe fittings. They have a high overall density and extremely strong pressure-bearing capacity, and are mainly used for pipe connection in high-pressure fluid pipelines to achieve the transition of pipe diameters. The raw materials include high-quality seamless steel pipes and solid round steel. They are suitable for common materials such as carbon steel and stainless steel. The production process begins with cutting the raw materials, which are then heated uniformly and softened by an induction furnace to make the metal soft. Special forging molds are used to repeatedly extrude and shape them. The pipe diameter is changed by contracting the pipe opening with external force. This avoids the problems of pipe wall cracking and eccentricity caused by one-time pressure application. After forging, the edges and burrs are removed, the pipe piece is cooled and corrected for coaxiality. Then, it is finely machined on the end face, bevel, and thread using a CNC lathe. Subsequently, non-destructive testing is carried out to check for forging cracks. Finally, rust prevention, acid washing, and passivation treatments are performed. This product is structurally integrated and has no welding seams. It has excellent pressure-bearing, impact resistance, and high-temperature resistance properties, high dimensional accuracy, and is suitable for high-pressure gas, oil, thermal power plants, chemical instrument pipelines, and is mostly used for variable diameter connection in high-pressure conditions.
C276 Forging Concentric or Eccentric Swaged Nipple Drawing
C276 Chemical composition and mechanical properties
Factory and Product Pictures
C276 Forging Concentric or Eccentric Swaged Nipple Product Pictures
C276 PMI spectral testing proves
Product packaging
C276 Forging Concentric or Eccentric Swaged Nipple Product packaging
Cutting and Preparing Materials
Select seamless steel pipes / round steel bars, cut them to the specified length using a saw, reserve the allowance for forging processing, clean the burrs at both ends of the pipe, inspect the outer diameter and wall thickness, and discard the defective billets with pores, layers, or uneven wall thickness. For thick-walled high-pressure forgings, round steel solid billets are preferred; for thin-walled ones, seamless pipe billets are used, conforming to ASME B16.9 and GB/T12459 forging standards.
2. High-temperature Heating (Forging Core)
Send the billets into the medium-frequency heating furnace. For carbon steel, heat it to 1100~1250℃; for stainless steel, heat it to 950~1180℃. Maintain a constant temperature for a certain period to ensure uniform heating of the pipe material and reduce the resistance of forging deformation, preventing local cold hardening cracking. Strictly control the heating time to avoid overheating and overburning, and prevent the coarse grain of metal from affecting the pressure-bearing performance of the finished product.
3. Die Forging and Contraction Forming
Quickly place the high-temperature billets on the dedicated forming molds ( eccentric contraction molds) for positioning and clamping. Use a hydraulic press or air hammer to apply pressure for die forging. The mold cavity forces the metal to undergo plastic contraction， completing the reduction of the pipe diameter at one end and forging an integral body with an unequal diameter conical shape. For large-diameter variable diameters， progressive forging is required in multiple stages. Prohibiting large deformation at once to prevent pipe wall tearing， eccentricity， or uneven wall thickness is necessary. Ensure the coaxiality of both ends throughout the process.
4. Edge Cutting and Rough Shaping
Remove the burrs and excess materials generated during forging， rough-round the ends and conical surfaces of the pipe parts， correct the forging deformation， and preliminarily shape the dimensions. Allow for natural air cooling or slow cooling to reduce stress cracks. Stainless steel forgings are prohibited from rapid water cooling to avoid stress cracks.
5. Precision Machining
Use a CNC lathe to precisely machine the end faces and outer circles of the large heads， and machine the welding grooves； if a threaded interface is required， machine NPT/BSP standard external threads and use a thread gauge to check. Strictly control the tolerance of the outer diameter， length， taper， and wall thickness at both ends to ensure the dimensions match the pipe connection.
6. Non-destructive Testing and Performance Inspection
For high-pressure working condition products， perform magnetic particle testing MT and penetrant testing PT to detect internal defects such as forging cracks， folds， and sand holes； for low-pressure products， conduct a full appearance visual inspection. Take samples for hardness and mechanical property tests to confirm that the forging microstructure meets the standards.
7. Surface Anti-corrosion Treatment and Finished Product Storage
Carbon steel forgings undergo blackening， galvanizing， and anti-rust oil treatment； stainless steel undergoes acid washing and passivation to remove the oxide layer and enhance corrosion resistance. Finally， review the specifications， pressure ratings， and markings. Qualified products are labeled and stored， while defective products are reworked or scrapped.
Our NXF GROUP advantage as follow:
1.Our NXF GROUP have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price based on best quality.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you
with a one-stop service.
Packing & Delivery
Company Profile
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals, machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories. Established in 1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship."
C276 Forging Concentric or Eccentric Swaged Nipple Certifications
FAQ
1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material) We have our own factories, quality can be controlled seriously. We Specialize in manufacturing about 21 years. We have professional testing department and testing equipment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian
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