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NXF UNS S316/DIN1.4401/AISI 316/0Cr17Ni12Mo2 DN15-1200 Class 150-1500 Stainless Steel 316 Forging Flange Slip on Flanges
2026-11-02 15:59 NXF GROUP
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Products Description
Stainless Steel 316 Introduction
316 is chrome-nickel austenitic alloy. It also contains molybdenum which increases general corrosion resistance,improves
resistance to pitting from chloride ion solutions, and provides increased strength at high temperatures.316 also provide excellent fabricability and formability. It is also called Marine Grade Stainless Steel.
resistance to pitting from chloride ion solutions, and provides increased strength at high temperatures.316 also provide excellent fabricability and formability. It is also called Marine Grade Stainless Steel.
Stainless Steel 316 Forging Flange Slip on Flanges Introduction
Stainless Steel 316 Forging Slip On Flange is a widely used forged pipe flange made of 316 stainless steel. It features a simple slip-on mounting structure, which allows the pipe to slide into the flange bore before welding for secure connection. The 316 stainless steel material delivers outstanding corrosion resistance, excellent resistance to chloride and seawater corrosion, and stable performance at moderate high temperatures. Manufactured by forging process, this flange has dense internal structure, high mechanical strength and reliable pressure-bearing capacity. It is easy to align and install, lower in cost compared with welding neck flanges, and suitable for low and medium pressure piping systems. Common applications include chemical industry, marine engineering, water treatment, food processing and general fluid transmission pipelines. It can be customized in various sizes and pressure classes to match different piping requirements.
Stainless Steel 316 Forging Flange Slip on Flanges Drawing
316 Chemical Composition And Mechanical Properties
Factory and Product Pictures
Stainless Steel 316 Forging Flange Slip on Flanges Product Pictures
316 PMI spectral testing proves
Video of a customer visiting us
Product processing
Stainless Steel 316 Forging Flange Slip on Flanges Product Processing
1.Raw Material Inspection:
Select ASTM A182 F316 stainless steel round billets as raw material. Check the material heat number, mill test certificate, chemical composition and mechanical property data. Conduct on-site spectrum testing to confirm alloy content meets 316 standard, visually inspect the billet surface for cracks, pores, scabs and folding defects. Unqualified blanks will be isolated and returned; only qualified raw materials can enter the forging process.
2.Hot Forging Forming:
3.Heat Treatment:
4.CNC Precision Machining:
5.Surface Treatment & Cleaning:
6.Final Inspection & Packaging:
2.Hot Forging Forming:
Load the qualified billet into the heating furnace, heat evenly to the target forging temperature range, keep sufficient holding time for uniform internal temperature. Transfer the heated billet quickly to the forging press for closed die forging to form the slip-on flange rough blank. Control forging pressure and forming stroke to avoid under-filling or over-burning. After forming, trim flash and rough burrs by trimming die, then cool the forging blank in a controlled way to prevent rapid cooling cracking.
3.Heat Treatment:
Carry out solution annealing for forged flange blanks. Heat the forgings to the solution temperature and hold for a specified time to dissolve carbide precipitates into the austenite matrix. Implement rapid air cooling to obtain a uniform austenitic microstructure, eliminate residual forging stress, recover the excellent corrosion resistance and toughness of 316 stainless steel. Randomly sample workpieces for hardness inspection after cooling.
4.CNC Precision Machining:
Fix the annealed forging blank on CNC lathe and machining center. Turn the inner bore, outer circle, flange thickness and raised face sealing surface strictly following ASME B16.5 dimension tolerance. Control the roughness and flatness of the sealing face to guarantee sealing performance. Then drill and ream bolt holes, ensure bolt hole pitch circle diameter and position tolerance. Deburr all edges after machining.
5.Surface Treatment & Cleaning:
Complete degreasing first to remove cutting fluid, oil stains and metal chips. Then carry out pickling and passivation treatment to eliminate surface oxide scale and heat tint, forming a stable chromium-rich passive film on the surface to improve anti-corrosion performance. After rinsing and drying, perform full visual inspection to check for machining scratches, pitting and abnormal surface defects.
6.Final Inspection & Packaging:
Carry out full dimensional verification, sealing surface inspection, hardness recheck and marking operation. Mark material grade, pressure class, specification, heat number and standard on the flange body by electrochemical marking. Wrap qualified flanges with anti-rust film, place into waterproof packaging. Paste product labels and shipping marks, separate defective products for rework or scrapping before warehouse storage.
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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