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NXF UNS N08020/2.4660/NiCr20CuMo DN15-1200 Class 150-1500 Nickel Alloy 20 Forging Flange Slip on Flanges
2026-09-05 14:49 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 Forging Flange Slip on Flanges Introduction
Slip On Flange is a common and cost-effective pipe connection fitting widely used in low and medium-pressure industrial piping systems. Different from weld neck flanges, it features a flat hub design that allows the pipe to slip through the flange bore, with double fillet welding applied on both inner and outer sides to complete pipe connection. This structural design simplifies installation procedures, shortens construction time and reduces assembly difficulty. Manufactured from premium carbon steel, stainless steel and alloy steel materials complying with ASME B16.5 and ASTM standards, slip on flanges offer good rigidity, stable sealing performance and excellent welding adaptability. They are suitable for normal temperature, low-pressure and non-severe alternating load working conditions, and are extensively applied in petroleum, chemical, water supply, power and general industrial piping systems for stable and convenient pipe connection.
Alloy 20 Forging Flange Slip on Flanges Drawing
Alloy 20 Chemical Composition And Mechanical Properties
Factory and Product Pictures
Alloy 20 Forging Flange Slip on Flanges Product Pictures
Alloy 20 PMI spectral testing proves
Video of a customer visiting us
Product processing
Alloy 20 Forging Flange Slip on Flanges Product Processing
1.Raw Material Inspection & Blanking:
High-quality carbon steel, stainless steel and alloy steel round bars conforming to ASTM and ASME standards are adopted. Strict inspections on chemical composition, mechanical properties and surface integrity are carried out to eliminate cracks, inclusions and other potential defects. Qualified raw materials are precisely cut into fixed-length blanks to prepare for formal forging processing.
2.Heating & Closed Die Forging:
2.Heating & Closed Die Forging:
The processed blanks are uniformly heated to the standard forging temperature with precise temperature control. Closed-die forging technology is applied to integrally form the flange disc, flat hub and through bore.The forged workpiece achieves dense internal grain structure, uniform thickness and stable overall mechanical performance,meeting basic structural requirements for flange assembly and welding.
3.Trimming, Straightening & Heat Treatment:
3.Trimming, Straightening & Heat Treatment:
Forging flashes and redundant margins are completely removed, and workpieces are straightened to correct forming deformation and ensure flat and regular overall shape. Corresponding heat treatments including normalizing, stress relief annealing and solution treatment are implemented according to different material types to eliminate forging residual stress, improve material toughness and enhance structural stability.
4.Precision Machining:
4.Precision Machining:
Professional precision turning is performed on the flange end face, sealing surface, inner bore and bolt holes. Strict dimensional tolerance control is implemented in accordance with ASME B16.5 standards to guarantee flatness,verticality and bore accuracy, ensuring smooth pipe penetration and accurate assembly matching.
5.Surface Finishing & Quality Testing:
5.Surface Finishing & Quality Testing:
All internal and external burrs, oxide scales and machining residues are cleaned thoroughly. Comprehensive quality inspections are conducted, including full dimensional measurement, visual inspection and nondestructive testing to verify no structural defects and ensure all technical indicators meet industrial piping standards.
6.Marking, Anti-rust Treatment & Packaging:
6.Marking, Anti-rust Treatment & Packaging:
Qualified slip on flanges are permanently marked with material grade, specification, pressure class, execution standard and heat number. Standard anti-rust treatment and protective packaging are completed before warehousing and transportation.
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: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
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
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+8613917160311
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