NXF GROUP
Phone/Whatsapp:+8613917160311
Email: info@nxf-group.com
Email: Andrew@nxf-group.com
Email: Alice@nxf-group.com
English
NXF UNS N08020/Alloy 20/2.4660/NiCr20CuMo Length 1-6000mm Width 1-1500mm Thickness 1-20mm Nickel Alloy 20 Plate
2026-10-23 16:46 NXF GROUP
3
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 Plate Introduction
Nickel Alloy 20 Plate (UNS N08020), commonly referred to as Alloy 20 plate, is a niobium-stabilized nickel-iron-chromium
austenitic alloy. The balanced chemical composition of nickel, chromium, iron, copper and niobium gives this material exceptional comprehensive corrosion resistance, especially excellent resistance to sulfuric acid across a wide concentration and temperature range. The niobium element is added to prevent chromium carbide precipitation during welding and high-temperature service, which effectively eliminates the risk of intergranular corrosion after welding, a key advantage over many conventional stainless steels.
austenitic alloy. The balanced chemical composition of nickel, chromium, iron, copper and niobium gives this material exceptional comprehensive corrosion resistance, especially excellent resistance to sulfuric acid across a wide concentration and temperature range. The niobium element is added to prevent chromium carbide precipitation during welding and high-temperature service, which effectively eliminates the risk of intergranular corrosion after welding, a key advantage over many conventional stainless steels.
This plate retains stable mechanical strength and good toughness at ambient and moderate elevated temperatures. It has superior ductility, cold forming performance and excellent weldability by all common welding methods, without requiring post-weld heat treatment. It also shows reliable resistance to pitting, crevice corrosion and stress corrosion cracking in many acidic and mixed corrosive environments.
Nickel Alloy 20 Plate is widely selected for critical equipment in chemical and petrochemical industries, including sulfuric acid reactors, storage tanks, heat exchangers, piping liners and mixing vessels. It is also widely used in pharmaceutical production equipment, food processing machinery, fertilizer plants, flue gas desulfurization systems, pickling lines and waste treatment facilities.
We supply Alloy 20 plate in hot rolled, cold rolled, annealed condition, with thickness from thin sheet to heavy plate,
customizable width, length and surface finishes such as pickled, polished or sandblasted. Strict third-party material test
certificates (MTC) are available to verify chemical composition and mechanical properties for pressure vessel and industrial engineering projects.
Nickel Alloy 20 Plate is widely selected for critical equipment in chemical and petrochemical industries, including sulfuric acid reactors, storage tanks, heat exchangers, piping liners and mixing vessels. It is also widely used in pharmaceutical production equipment, food processing machinery, fertilizer plants, flue gas desulfurization systems, pickling lines and waste treatment facilities.
We supply Alloy 20 plate in hot rolled, cold rolled, annealed condition, with thickness from thin sheet to heavy plate,
customizable width, length and surface finishes such as pickled, polished or sandblasted. Strict third-party material test
certificates (MTC) are available to verify chemical composition and mechanical properties for pressure vessel and industrial engineering projects.
Nickel Alloy 20 Plate Drawing
Alloy 20 Chemical Composition And Mechanical Properties
Factory and Product Pictures
Nickel Alloy 20 Plate Product Pictures
Alloy 20 PMI spectral testing proves
Video of a customer visiting us
Product processing
Nickel Alloy 20 Plate Product Processing
1.Raw Material Inspection:
The incoming raw materials are Nickel Alloy 20 slabs with complete mill test certificates (MTC). Our QC team first cross-checks the heat number, material grade, chemical composition and mechanical property data against ASTM B409 standard. Visual inspection is performed to check for surface cracks, slag inclusions, blowholes, delamination and obvious scratches. Random sampling is taken for spectrometer analysis to verify the content of nickel, iron, chromium, copper and other alloying elements. The dimensional measurement of slabs is recorded for production scheduling. All qualified slabs are marked and put into designated storage area; non-conforming materials are isolated and returned to the supplier with rejection report.
2.Heating & Hot Rolling:
3.Cold Rolling & Flatness Straightening:
4.Solution Annealing & Stress Relief:
5.Finishing & Nondestructive Testing:
6.Surface Cleaning, Anti-corrosion Protection & Export Packaging:
2.Heating & Hot Rolling:
Qualified slabs are loaded into a gas-fired walking-beam heating furnace with precise temperature control. The heating curve is strictly executed with slow heating stage to avoid thermal shock, holding stage for uniform temperature distribution, and the heating temperature is kept within the specified range to avoid over-burning and abnormal grain growth. After reaching the target temperature, the slab is transported to the hot rolling mill. Multi-pass reversible hot rolling is adopted, and the reduction per pass, rolling speed and tension are adjusted continuously. The plate is rolled to the target hot-rolled blank thickness. After hot rolling, high-pressure water descaling is carried out repeatedly to remove high-temperature oxide scale formed on the upper and lower surfaces. The hot-rolled blank is then air-cooled to room temperature.
3.Cold Rolling & Flatness Straightening:
The cooled hot-rolled blank is sent to the cold rolling line. Multi-pass cold rolling with controlled single-pass reduction is adopted to gradually reduce the thickness to the finished dimension, strictly controlling thickness tolerance within customer required range. During cold rolling, online flatness detector monitors plate shape in real time. When camber, wave edge or local warping occurs, the bending roll system is adjusted to correct flatness. Intermediate inspection is arranged after several rolling passes to check thickness, surface condition and flatness, so as to adjust rolling parameters in time.
4.Solution Annealing & Stress Relief:
The cold-rolled plate is transferred to a vacuum bright annealing furnace for solution heat treatment. The furnace is pumped to high vacuum to prevent surface oxidation and discoloration. The temperature rises slowly to the solution temperature, keeps constant for enough holding time to dissolve intermetallic precipitates fully, then cools down at a controlled cooling rate. This process homogenizes the microstructure, eliminates residual rolling stress, and restores the excellent corrosion resistance of Nickel Alloy 20, especially in caustic and acidic environments. After annealing, the plate is taken out after cooling to safe temperature.
5.Finishing & Nondestructive Testing:
Annealed plates go to the finishing workshop. According to drawing requirements, oversized edges are cut by shearing machine or plasma cutting machine, then the cutting edges are ground and deburred to remove sharp edges and cutting slag. Surface grinding is optional if higher surface roughness is needed. Full inspection items include overall dimension, thickness tolerance, diagonal deviation, flatness and surface finish. Ultrasonic testing (UT) is performed to detect internal defects such as lamination and inclusions. Surface penetrant testing (PT) can be arranged as required to check surface microcracks. The qualified plates are marked with heat number, material grade, size, inspection date and QC stamp.
6.Surface Cleaning, Anti-corrosion Protection & Export Packaging:
The qualified plates are cleaned with alkaline degreasing solution and pure water rinsing to remove rolling oil, grinding dust and residual stains, then dried completely. Transparent scratch-resistant protective film is attached on both surfaces to prevent scratch and contamination during handling. Plates are separated by moisture-proof paper between layers. The whole stack is fixed on export wooden pallet, reinforced with packing belt, and desiccants are placed inside the package to avoid moisture corrosion. Packing list, material test certificate and shipping mark are attached on the outside of package for overseas shipment.
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
Nickel Alloy 20 Plate 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
声明：此篇为NXF GROUP原创文章，转载请标明出处链接： https://www.nxf-group.com/h-nd-2445.html
Phone
+8613917160311
Whatsapp
Whatsapp
+8613917160311
Wechat
Wechat
Inquiry
Email
info@nxf-group.com
Inquiry
Inquiry