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 ironbased, cobaltbased and nickelbased alloys. The nickelbased and cobaltbased 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, solidsolution 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 short hub provides reinforcement, disperses stress at the welding area, improves the rigidity and deformation resistance of the flange, and achieves higher pressure rating than plate flanges. It can be machined with various sealing face types including raised face, flat face, male & female face and ring joint face, compatible with different gaskets for diverse sealing requirements.
This product is made of nickel alloy with excellent corrosion resistance against various corrosive media. It balances easy installation and structural strength, widely used in chemical, oil & gas, water treatment and power piping systems. It is suitable for pipelines with relatively stable temperature and pressure, commonly used for equipment nozzles and general process connections for convenient disassembly and maintenance. Compared with weld neck flanges, it features lower cost and higher installation efficiency, while it is not recommended for severe fatigue service with frequent alternating load, high temperature and ultra-high pressure.



1.Raw Material Inspection and Cutting
Verify material certificates of nickel alloy plates and perform physical and chemical retests. Qualified plates are cut to size, edge burrs cleaned and heat number marked.
2.Blank Levelling
Cut blanks are levelled to eliminate warping deformation caused by cutting and ensure flatness for subsequent machining.
3.Rough Machining
Rough turning of outer diameter, sealing face and bore on CNC lathe with finish machining allowance reserved.
4.NonDestructive Testing
Penetrant testing is carried out after rough machining to detect surface defects such as cracks and inclusions.
5.Finish Machining
Precision turning of sealing face, bore and outer circle, bolt hole drilling. Strict control on tolerances of bolt circle, thickness and flatness of sealing face.
6.Dimension and Sealing Face Inspection
Full dimensional inspection, roughness and flatness test of sealing face against standard and pressure class.
7.Marking and Stamping
Traceability information including size, pressure class, heat number, material and standard is stamped on the outer periphery.
8.Surface Treatment
Sand blasting for scale removal, protective coating applied as per order requirement.
9.Final Inspection, Packing and Storage
Final acceptance inspection. Qualified products are packed properly and put into warehouse.
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 qualitycertificate system and trademark certificate
5.Our NXF GROUP have a comprehensive aftersales service guarantee, such as the transaction guarantee provided by Alibaba 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.
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%),EasternEurope(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),CentralAmerica(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?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 qualitycertificate system and trademark certificate
5.Our NXF GROUP have a comprehensive aftersales service guarantee,such as the transaction guarantee provided by Alibaba 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 aone-stop service.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA;
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese
6. Are you trading company or manufacturer ?
We are manufacturer.
7. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according toquantity.
8. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
9. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.