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NXF UNS N08020/Alloy 20/2.4660/NiCr20CuMo Diameter 15-1200mm Length 1-12m Nickel Alloy 20 Solid Round Alloy Bar
2026-10-22 15:48 NXF GROUP
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Products 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.
Nickel Alloy 20 Solid Round Alloy Bar Introduction
Nickel Alloy 20 (UNS N08020), also known as Alloy 20, is a stabilized austenitic nickel-iron-chromium alloy with copper and molybdenum additions. It is specially developed to resist corrosion from sulfuric acid and a variety of mixed corrosive media. Nickel Alloy 20 solid round alloy bar is normally produced by hot forging, hot rolling and subsequent cold finishing, and can be supplied in annealed condition for optimal ductility and corrosion resistance.
This solid round bar exhibits outstanding resistance to pitting, crevice corrosion and intergranular corrosion. It maintains
stable performance in reducing and mildly oxidizing environments, and performs excellent against sulfuric acid across a wide concentration and temperature range. It has good ductility, excellent weldability and machinability. The material can be readily cut, turned, milled, drilled and formed, and keeps reliable corrosion resistance after welding. It does not become brittle easily under long-term service.
Benefiting from its superior anti-corrosion characteristics, Nickel Alloy 20 solid round alloy bar is widely used in chemical
processing equipment, sulfuric acid storage tanks, reaction vessels, agitator shafts, heat exchangers, pickling system components, pharmaceutical production equipment, food processing machinery and pollution control facilities. It is the preferred material for applications exposed to sulfuric acid and mixed acid corrosive conditions.
This solid round bar exhibits outstanding resistance to pitting, crevice corrosion and intergranular corrosion. It maintains
stable performance in reducing and mildly oxidizing environments, and performs excellent against sulfuric acid across a wide concentration and temperature range. It has good ductility, excellent weldability and machinability. The material can be readily cut, turned, milled, drilled and formed, and keeps reliable corrosion resistance after welding. It does not become brittle easily under long-term service.
Benefiting from its superior anti-corrosion characteristics, Nickel Alloy 20 solid round alloy bar is widely used in chemical
processing equipment, sulfuric acid storage tanks, reaction vessels, agitator shafts, heat exchangers, pickling system components, pharmaceutical production equipment, food processing machinery and pollution control facilities. It is the preferred material for applications exposed to sulfuric acid and mixed acid corrosive conditions.
Nickel Alloy 20 Solid Round Alloy Bar Drawing
Alloy 20 Chemical Composition And Mechanical Properties
Factory and Product Pictures
Nickel Alloy 20 Solid Round Alloy Bar Product Pictures
Alloy 20 PMI spectral testing proves
Video of a customer visiting us
Product processing
Nickel Alloy 20 Solid Round Alloy Bar Product Processing
1.Raw Material Inspection:
Inspect incoming Nickel Alloy 20 ingots or billets. Verify chemical composition strictly against ASTM B472 / ASTM B160 standards via spectrometer analysis, focusing on nickel, iron, chromium, copper and impurity content. Carry out ultrasonic inspection to detect internal defects such as porosity, shrinkage cavities, slag inclusions and internal cracks. Visual inspection checks surface cracks, scabs, folding, oxidation and segregation marks. All inspection results are recorded in batch quality reports. Non-conforming billets are marked, quarantined and returned to raw material suppliers.
2.Hot Forging & Hot Extrusion Forming:
3.Multi-pass Cold Drawing Sizing:
4.Intermediate Stress Relief Annealing:
5.Finishing & Surface Treatment:
6.Final Inspection & Packaging:
2.Hot Forging & Hot Extrusion Forming:
Load qualified Alloy 20 billets into a controlled atmosphere heating furnace. Heat evenly within the specified temperature range, carefully managing holding time to avoid overheating or grain coarsening. Transfer the heated billet quickly to forging equipment for preliminary hot forging to refine coarse cast grain structure, eliminate casting voids. Then proceed to hot extrusion through precision circular die under stable hydraulic pressure. Continuously adjust extrusion pressure, speed and exit temperature to prevent surface tearing, folding and non-uniform metallographic structure, obtaining primary solid round bar blanks.
3.Multi-pass Cold Drawing Sizing:
Apply high-temperature resistant lubricant evenly on the surface of extruded blanks before drawing. Conduct progressive multi-pass cold drawing with customized tungsten carbide drawing dies, controlling the deformation rate of each pass reasonably to avoid work-hardening cracking. Real-time monitor drawing speed, die condition and lubrication effect to guarantee outer diameter tolerance, roundness, straightness and low surface roughness, meeting the dimensional requirements of customer drawings.
4.Intermediate Stress Relief Annealing:
After cold drawing passes, perform stress relief annealing under inert protective atmosphere. Heat the alloy bar to target temperature, maintain constant holding time and then cool slowly. This process removes heavy residual cold working stress generated during drawing, restores appropriate ductility of Nickel Alloy 20, prevents cracking in subsequent processing, and stabilizes the metallographic structure without sacrificing its corrosion resistance.
5.Finishing & Surface Treatment:
Straighten the alloy bar on multi-roll straightening machine to eliminate bending and torsion from hot working and cold drawing. Cut to customized fixed lengths with precision saw equipment, remove sharp burrs at both ends. Carry out sequential pre-cleaning: degreasing to remove drawing lubricants, pickling & passivation to eliminate oxide scale and surface contamination, multi-stage pure water rinsing and drying. A uniform passive film forms on the surface to enhance its inherent resistance to sulfuric acid and reducing corrosive media.
6.Final Inspection & Packaging:
Complete full finished-product inspection: dimensional tolerance, straightness, roundness measurement, visual surface defect check, hardness test, tensile & yield strength test, corrosion resistance spot check and metallographic examination. Label qualified bars with alloy grade, diameter, length, heat number, standard and inspection stamp. Wrap each bar with scratch-resistant protective film, arrange neatly inside fumigated wooden cases, add desiccants and shockproof fillers, fasten packages tightly to prevent collision and moisture damage in ocean or land transit.
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)
Certification
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:
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:
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.
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
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.
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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