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NXF UNS S3040 304/1.4301 OD DN6-DN1200 Pressure 3000-9000lb Special Stainless Steel Forging Fitting Threaded Flush Bushing
2026-05-08 14:24 NXF GROUP
10
Product Description
UNS S3040 304/1.4301 Stainless Steel Introduction
UNS S3040 304/1.4301 Stainless Steel Introduction
UNS S30400 (commonly referred to as 304 stainless steel, European standard designation 1.4301) is the most widely used general-purpose austenitic stainless steel, with a balanced combination of corrosion resistance, formability, weldability and mechanical properties that makes it the global industry benchmark for stainless steel applications. It offers superior atmospheric and general media corrosion resistance over 400 series ferritic and martensitic stainless steels, and is widely used in food processing, architectural decoration, chemical equipment, water treatment and daily hardware scenarios.
Machinability
Stainless steel grade UNS S30400 304/1.4301 has machinability characteristics that are typical of standard austenitic stainless steels; however it requires consistent cutting speeds, sufficient feed rates, and high machine rigidity due to its moderate work hardening rate during machining. It is recommended that sharp, wear-resistant carbide tooling optimized for austenitic stainless steels be used.
Forming
Stainless steel grade UNS S30400 304/1.4301 can be formed using the same conventional cold and hot forming methods applied for other austenitic stainless steels. It has excellent ductility, requiring lower forming force than high-alloy austenitic grades,and is highly adaptable to deep drawing, bending and stamping processes. Hot forging can be done at 1150-1260°C (2100-2300°F).
Welding
Welding of stainless steel grade UNS S30400 304/1.4301 can be performed using all traditional fusion and resistance joining processes. Recommended filler metal should be AWS E308L/ER308L for most general applications.
Caution should be taken while using autogenous welding for thick sections (over 6mm) or components serving in strongly corrosive environments, due to the risk of chromium carbide precipitation and reduced intergranular corrosion resistance in the heat-affected zone; post-weld solution annealing is recommended for these critical scenarios.
Heat Treatment
Final solution annealing process performed for optimal performance in most applications, is done at 1010-1100°C
(1850-2010°F),which is followed by rapid water quenching. In case this material is used in a strongly corrosive
environment,annealing should be done at the upper end of the temperature range (1060-1100°C / 1940-2010°F) to ensure full carbide dissolution.This austenitic alloy cannot be hardened by thermal heat treatment, only through cold working.
Machinability
Stainless steel grade UNS S30400 304/1.4301 has machinability characteristics that are typical of standard austenitic stainless steels; however it requires consistent cutting speeds, sufficient feed rates, and high machine rigidity due to its moderate work hardening rate during machining. It is recommended that sharp, wear-resistant carbide tooling optimized for austenitic stainless steels be used.
Forming
Stainless steel grade UNS S30400 304/1.4301 can be formed using the same conventional cold and hot forming methods applied for other austenitic stainless steels. It has excellent ductility, requiring lower forming force than high-alloy austenitic grades,and is highly adaptable to deep drawing, bending and stamping processes. Hot forging can be done at 1150-1260°C (2100-2300°F).
Welding
Welding of stainless steel grade UNS S30400 304/1.4301 can be performed using all traditional fusion and resistance joining processes. Recommended filler metal should be AWS E308L/ER308L for most general applications.
Caution should be taken while using autogenous welding for thick sections (over 6mm) or components serving in strongly corrosive environments, due to the risk of chromium carbide precipitation and reduced intergranular corrosion resistance in the heat-affected zone; post-weld solution annealing is recommended for these critical scenarios.
Heat Treatment
Final solution annealing process performed for optimal performance in most applications, is done at 1010-1100°C
(1850-2010°F),which is followed by rapid water quenching. In case this material is used in a strongly corrosive
environment,annealing should be done at the upper end of the temperature range (1060-1100°C / 1940-2010°F) to ensure full carbide dissolution.This austenitic alloy cannot be hardened by thermal heat treatment, only through cold working.
Threaded Flush Bushing Introduction
Threaded Flush Bushing Introduction
The threaded flush bushing is a high-precision, heavy-duty industrial pipe fitting designed for reliable pipeline connection and size adaptation.It adopts a compact headless cylindrical structure with no wrench flats, and is precisely machined with full continuous external threads and full continuous internal threads across the entire body. There are no smooth surfaces, and the thread profiles are sharp, complete and highly defined to guarantee firm engagement and stable sealing.
With a flush and slim profile, this fitting is ideal for installation in narrow, confined spaces. It is widely applied in
industrial piping systems, fluid transmission lines and mechanical equipment, delivering durable, leak-proof performance in demanding working environments.
With a flush and slim profile, this fitting is ideal for installation in narrow, confined spaces. It is widely applied in
industrial piping systems, fluid transmission lines and mechanical equipment, delivering durable, leak-proof performance in demanding working environments.
Threaded Flush Bushing Drawing
Threaded Flush Bushing Drawing
UNS S3040 304/1.4301 Chemical And Mechanical Properties
UNS S3040 304/1.4301 Chemical And Mechanical Properties
Product Image
Product Image
Spectral detection PMI Testing
Spectral detection PMI Testing
Video of a customer visiting us
Product processing
Threaded Flush Bushing Produce Processing
Threaded Flush Bushing Produce Processing
1. Raw Material Cutting
Cut the raw material into fixed-length blanks according to the product size specifications to ensure
dimensional consistency.
dimensional consistency.
2. Precision Forging & Forming
Adopt cold/hot forging process to form the blank into a cylindrical shape,
with compact internal structure and stable mechanical performance.
with compact internal structure and stable mechanical performance.
3. CNC Machining
Use high-precision CNC lathes to process the outer diameter, inner bore and end faces, strictly controlling the tolerance and flatness of the product.
4. Full Thread Tapping
Machine full continuous external threads on the outer wall and full continuous internal threads on the inner bore. All threads are formed at one time, with sharp tooth profile, no burrs and no smooth surface.
Machine full continuous external threads on the outer wall and full continuous internal threads on the inner bore. All threads are formed at one time, with sharp tooth profile, no burrs and no smooth surface.
5. Deburring & Surface Finishing
Remove all sharp edges, burrs and impurities inside and outside the product to ensure a smooth and clean surface without scratches.
6. Dimensional
Inspection Conduct full inspection of thread size, outer diameter, inner diameter and length to ensure all products meet the
standard specifications.
Inspection Conduct full inspection of thread size, outer diameter, inner diameter and length to ensure all products meet the
standard specifications.
7. Cleaning & Packaging
Clean the finished products thoroughly, and pack them quantitatively to avoid
damage during transportation and storage.
damage during transportation and storage.
Our advantage as follow:
1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can giveyou the lowest price.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.Such as PMI testing
3. Our biggest advantage is 3S service. Small quantity,short time, special materials.
4.We have excellent quality certificate system and trademark certificate
5.We 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.We have a well-established logistics support system that can save you both time and money,providing you with a one-stop service.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.Such as PMI testing
3. Our biggest advantage is 3S service. Small quantity,short time, special materials.
4.We have excellent quality certificate system and trademark certificate
5.We 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.We have a well-established logistics support system that can save you both time and money,providing you with a one-stop service.
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 in 1980, 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 as follow:
1.We 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.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.Such as PMI testing
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
4.We have excellent quality certificate system and trademark certificate
5.We 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.We have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
Our advantage as follow:
1.We 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.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.Such as PMI testing
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
4.We have excellent quality certificate system and trademark certificate
5.We 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.We have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
Chinese Trademark Certificate
Chinese Trademark Certificate
European certificate
European certificate
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;
LanguageSpoken:English,Chinese,Spanish,Russian
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