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NXF UNS NO7718/2.4668/NiCr19NbMo/alloy 718 DN6-1200 Class3000-6000 Nickel Alloy Forged Fitting Threaded Cap
Alloy 718 Introduction
Threaded Cap Introduction
A threaded cap (also known as a screw cap) is a protective fastener featuring internal helical threads; it screws onto the external male threads of pipes, containers, or assemblies to create a secure, leak-proof seal.
Design and Function—Helical Threads: Features internal threads that match the external threads of the mating component.
Tight Seal: Blocks liquids, gases, and air, preventing pressure loss.
Ease of Use: Can be tightened by hand or with tools and easily removed when necessary.
Metal Construction: Manufactured from durable stainless steel (such as 304 or 316) or forged steel, suitable for heavy industrial applications.
Automotive Sector: Protects fuel lines, fluid connections, and engine components from contaminants.
Packaging Sector: Ensures the secure sealing and storage of consumer goods, chemicals, and liquids.
Customer visit to the factory video
718 Threaded Cap Produce Processing
Raw material cuttingCut steel bar into required blank length.
1.Forging:Heat billet and forge to form the rough cap shape.
2.Heat treatment (on demand):Normalizing /annealing to remove forging stress.
3.Rough machining:Turn outer circle, end face, bore inner hole.
4.Thread machining:Machine internal thread (NPT / BSPT / BSPP) by CNC lathe.
5.Deburring:Remove burrs on threads and edges.
6.Inspection:Check dimension, thread with go/no-go gauge, visual inspection.
7.Surface treatment:Carbon steel: galvanized /black oxide; Stainless steel: pickling & passivation.
8.Marking：Mark material, size, pressure class, standard.
9.Packing
Our NXF GROUP advantage as follow
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.
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).
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?
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