NXF UNS NO7718/2.4668/NiCr19NbMo/alloy 718 DN15-1200 Class150-2500 Nickel Alloy Forged Fitting Threaded Flanges

3. Applicable Working Conditions：

This type of flange is widely applicable to low-pressure, normal-temperature and medium-small diameter pipeline systems, including water supply and drainage, gas, oil and general industrial fluid pipelines. Standard threaded flanges conform to ASME B16.5 and GB standard specifications, with stable sealing performance under rated pressure and temperature conditions. They are not recommended for high-pressure, high-temperature and severe vibration pipeline environments to prevent thread loosening and leakage.

Alloy 718 PMI spectral testing proves

Customer visit to the factory video

718 Threaded Flanges Produce Processing

1. Raw Material Verification and Cutting：All raw steel materials must be strictly inspected for chemical composition, mechanical properties and surface defects before production to comply with ASME and national flange standards. Qualified steel bars and steel plates are precisely cut and blanked according to flange dimension drawings. Appropriate machining allowance is reserved during cutting to ensure sufficient margin for subsequent threading, turning and finishing processes, avoiding material waste and processing errors.

2. Rough Turning and Forming：CNC lathes are used for rough machining of blank workpieces. The processing includes turning flange outer diameter, end face, inner hole and basic outline, removing redundant materials on the surface of the workpiece. This procedure preliminarily shapes the overall structure of the threaded flange, controls basic dimensional tolerance, and eliminates surface burrs and irregular profiles generated by cutting, preparing for precision machining.

3. Precision Thread Machining：Internal pipe thread is the core process of threaded flanges. Professional thread turning tools and precision CNC equipment are adopted to machine standard internal threads strictly in accordance with thread specifications. The thread pitch, tooth height and verticality are precisely controlled to ensure smooth thread surface and accurate meshing size. Inspection tools are used to check thread tightness to guarantee perfect matching with standard pipes.

4. Bolt Hole Drilling and Milling：According to the flange standard size and hole position drawings, precision drilling and milling are carried out for flange bolt holes. The hole spacing, aperture size and hole verticality are strictly controlled to avoid deflection and position deviation. After drilling, deburring treatment is performed on the inner wall of the holes to ensure smooth bolt assembly and uniform stress during flange installation.

5. Surface Treatment and Stress Relief：After mechanical processing, the threaded flanges are polished and passivated to remove tool marks, sharp edges and surface oxide layers. For carbon steel and alloy steel flanges, stress relief treatment is conducted to eliminate internal machining stress and prevent deformation. Anti-rust oil is coated on the thread and surface to improve corrosion resistance and extend service life.

6. Final Inspection and Finished Product Packaging：

Full-scale dimensional inspection, thread detection and surface quality inspection are implemented for finished threaded flanges. Non-destructive testing is carried out for key products to check internal defects. All qualified products are cleaned, marked with specifications and standards, and packed in professional packaging to prevent thread damage and pollution during transportation and storage.

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 qualitycertificate system and trademark certificate
5.Our NXF GROUP have a comprehensive after-sales 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.

Packing & Delivery

Packing

Delivery

Company Profile

New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products
includemetals,machinery, containers, construction materials, mechanical products, electrical systems, and medical
accessories.Establishedin1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolutecustomer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management andCraftsmanship." Our advantage:3S Service(Small Quantity/Short Time/Special Material).

Certification

FAQ

1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),South America(10.00%),Eastern Europe(10.00%),Mid East(10.00%),Eastern Asia(10.00%),Southeast Asia(5.00%),Africa(5.00%),Central America(5.00%),Northern Europe(5.00%),North America(5.00%),Domestic Market(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 after-sales service guarantee, such as the transaction guarantee provided by AlibabaInternational 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,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