NXF GROUP
Phone/Whatsapp:+8613917160311
Email: info@nxf-group.com
Email: Andrew@nxf-group.com
Email: Alice@nxf-group.com
English
NXF UNS S30400 ASTM 304/JIS 304/EN 1.4301 OD DN15-1200 Class150-3000 Forging Fitting Stainless Steel Slip on Flange
2026-08-03 18:53 NXF GROUP
8
Stainless steel 304 introduction
Stainless steel is an alloy steel based on iron and chromium, supplemented with alloying elements such as nickel, molybdenum, and manganese. The core principle is that chromium in the steel combines with oxygen to form a dense, stable chromium oxide passivation film on the material surface, isolating it from air and moisture and preventing the steel from rusting and corroding.304 stainless steel is an austenitic stainless steel and is the most widely used general-purpose stainless steel material.
Slip On Flange Introduction
Slip On Flange (SO) is manufactured from forged steel. It features a low cylindrical hub. The pipe inserts into the flange bore and is welded around both the outer and inner sides to ensure connection tightness.With better rigidity than plate flat welding flange (PL), SO flange offers competitive cost compared with weld neck flange (WN).Standard sealing face: RF (Raised Face). Complies with ASME B16.5, HG/T20592, GB/T9116.Widely applied for medium & low pressure piping systems in petroleum, chemical, water treatment and general industry.Available materials: Carbon steel A105, stainless steel 304, 316L and alloy steel.
SLIP ON FLANGE DRAWING
Stainless steel 304 Chemical composition and mechanical properties
Slip On Flange Factory and Product Pictures
Stainless steel 304 PMI spectrum test certificate
Customer visit to the factory video
Slip On Flange Product Processing
1.Raw material cutting: Round steel bars (A105 carbon steel, 304/316L stainless steel bars) are used. The weight is calculated according to the flange specifications, and the bars are cut into blanks of the corresponding size by a saw.
2.Heated forging: The bar stock is fed into a heating furnace and heated to the forging temperature; a hydraulic forging press is used for die forging to produce the basic shape of a necked flat-welded flange (disc + short neck prototype).
3.Heat treatment (critical process): Carbon steel A105: Post-forging normalizing treatment to eliminate forging internal stress, improve metallographic structure, and increase toughness; Stainless steel 304/316L: Solution heat treatment to prevent intergranular corrosion.
4.Rough turning: The inner and outer diameters, thickness, and inner hole are rough turned on a CNC lathe, leaving a finishing allowance, and the oxide scale and irregular surface layer of the forging are removed.
5.Finishing (core forming process): Finish turning both end faces and the sealing surface (RF raised face), machining concentric water lines on the sealing surface; Finish turning the inner diameter of the flange neck (pipe fitting dimensions); Drilling on a drilling machine/machining center: uniformly machining bolt through holes; Chamfering and deburring.
6.Steel stamp marking: Steel stamping shall be made in accordance with standard requirements: material, standard, specifications, pressure rating (Class 150/300, PN16, etc.), furnace batch number.
7.Non-destructive testing: Magnetic particle inspection (MT) / Ultrasonic testing (UT) to detect internal defects such as cracks and delamination.
8.Surface treatment: Stainless steel flanges: Polishing / pickling and passivation to prevent rust.
9.Finished product full inspection + packaging: Dimension verification and visual inspection of sealing surfaces; after passing inspection, the product is sealed with plastic film and wooden crates to prevent damage to the sealing surfaces during 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 qualitycertificate 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
4.Our NXF GROUP have excellent qualitycertificate 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
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 toensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Managementand 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；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese
6. Are you trading company or manufacturer ?
We are manufacturer.
7. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
8. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
9. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese
6. Are you trading company or manufacturer ?
We are manufacturer.
7. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
8. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
9. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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-2157.html
Phone
+8613917160311
Whatsapp
Whatsapp
+8613917160311
Wechat
Wechat
Inquiry
Email
info@nxf-group.com
Inquiry
Inquiry