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NXF UNS N08020/Alloy 20/2.4660/NiCr20CuMo DN15-1200 SCH10-XXS Nickel Alloy 20 Butt Welding Pipe Fitting End Cap
2026-08-26 19:18 NXF GROUP
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Product Description
Alloy 20 Introduction
Alloy 20 is an austenitic stainless steel containing less than 50% iron and is used in applications involving sulfuric acid. Its
corrosion resistance also finds other applications in the chemical, petrochemical, power generation, and plastics industries.Alloy 20 exhibits superior resistance to pitting and chloride ion corrosion compared to 304 stainless steel and is comparable to316L stainless steel. Its copper content protects it from sulfuric acid. Alloy 20 is typically selected to address the potentialstress corrosion cracking issues of 316L stainless steel.
corrosion resistance also finds other applications in the chemical, petrochemical, power generation, and plastics industries.Alloy 20 exhibits superior resistance to pitting and chloride ion corrosion compared to 304 stainless steel and is comparable to316L stainless steel. Its copper content protects it from sulfuric acid. Alloy 20 is typically selected to address the potentialstress corrosion cracking issues of 316L stainless steel.
Alloy 20 Butt Welding Pipe Fitting End Cap Introduction
Butt welding cap is a fitting welded to the pipe end or mounted on the external thread of the pipe end to close the pipeline. Its nominal diameter ranges from DN15 to DN1200, and wall thickness covers SCH5‑SCH160.Cap designs include dished cap, conical shell, reducer section, flat head and nozzle. Among them, dished caps comprise hemispherical, elliptical, torispherical and other structures.Manufacturing complies with standards including ASME B16.9, DIN 2617, GB/T 12459 and NORSOK M650. The production processes involve stamping forming, welding, heat treatment, etc. Non‑destructive testing and deformation control are required. Butt‑weld caps are widely used in petrochemical, nuclear power, machinery manufacturing, medical equipment, food‑pharmaceutical,drinking‑water & beverage, beer, food, fertilizer, shipbuilding, pipeline and other industries for sealing pipelines and bearing pressure.
Alloy 20 Butt Welding Pipe Fitting End Cap Drawing
Alloy 20 Chemical composition and mechanical properties
Butt Welding Pipe Fitting End Cap Product Picture
Alloy 20 PMI spectral testing proves
Video of a customer visiting us
Product processing
Butt Welding Pipe Fitting End Cap processing
1.Basic Definition & Standard:
2.Raw Material Preparation:
Butt weld end caps are professional pipe end closure fittings, independently manufactured from steel plates, steel strips or seamless steel tubes rather than finished welded pipes. All processing procedures strictly follow ASME B16.9 and GB/T 12459 industrial standards.
2.Raw Material Preparation:
Select qualified carbon steel, stainless steel and alloy steel raw materials, and cut standard circular steel blanks according to product specifications to ensure uniform wall thickness and complete blank size.
3.Forming Process for Small & Medium Sizes :
3.Forming Process for Small & Medium Sizes :
Adopt deep drawing or hot pressing technology. The steel blanks are integrally pressed into hemispherical, elliptical or torispherical cap bodies by hydraulic presses with customized molds for one-piece forming.
4.Forming Process for Large & Thick-wall Sizes:
4.Forming Process for Large & Thick-wall Sizes:
Adopt segmented splicing and welding process. Steel plates are cut into multiple segments, bent by CNC equipment, assembled into complete cap shells, and welded by double-sided submerged arc welding (SAW). Hot pressing correction is performed to adjust roundness and overall height.
5.Machining Treatment:
5.Machining Treatment:
Carry out edge trimming and precision beveling to form standard V-type or U-type welding grooves, ensuring accurate butt joint size for on-site pipeline installation.
6.Heat Treatment:
6.Heat Treatment:
Conduct stress relief annealing or normalizing for ordinary carbon steel caps; implement solution heat treatment for stainless steel caps to eliminate internal stress and improve corrosion resistance and structural stability.
7.Strict Inspection Testing:
7.Strict Inspection Testing:
Complete full-range inspections including dimensional tolerance check, wall thickness detection,ultrasonic & radiographic non-destructive testing, and hydraulic or pneumatic pressure tests to eliminate welding cracks, deformation and other defects.
8.Finishing & Warehousing:
8.Finishing & Warehousing:
Clean surface burrs and oil stains, mark product specifications and standards, and conduct classified warehousing after confirming that all indicators meet industrial piping pressure and sealing requirements.
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 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.
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 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 include metals,machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories.Established in1980, 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." Our advantage:3S Service(Small Quantity/Short Time/Special Material)
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;
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
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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+8613917160311
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