NXF ASTM A182 F51 / F60 UNS S31803/S32205 DN15-1200 Class3000-9000 Duplex Stainless Steel Socket Welding Pipe Fittings SW Cap

2025-09-26 16:45 NXF GROUP
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Product Description
    ASTM A182 F51 equates to UNS S31803. This was the original caption for a 22% Cr duplex stainless steel. However, as explained in an earlier article, manufacturers optimized the composition towards the top end of the limits to improve pitting corrosion resistance. This grade, with a tighter specification, is captioned as F60, equating to UNS S32205. Consequently, S32205 can be dual-certified as S31803, but not vice-versa. It accounts for around 80% of overall duplex stainless steel production. Langley Alloys stocks Alloy 2205+, which is Altima's proprietary product that provides enhanced machinability as standard’. Our stock range goes from ½” up to 450mm diameter solid bars, plus hollow bars and plates too.

    The socket welding cap is a component of a container and is connected to the cylinder body by welding. Depending on the different geometric shapes, it can be classified into several types such as spherical, elliptical, disc-shaped, spherical cap-shaped, conical shell, and flat cover. Among them, spherical, elliptical, disc-shaped, and spherical cap-shaped heads are collectively referred to as convex heads. In terms of welding, they can be divided into butt-weld heads and socket-weld heads. They are used in various container equipment such as storage tanks, heat exchangers, towers, reaction vessels, boilers, and separation equipment, etc. The materials include carbon steel, stainless steel, alloy steel, aluminum, titanium, copper, nickel, and nickel alloys, etc. The pipe cap is the end cover of a pressure vessel and is a main pressure-bearing component of the pressure vessel. Its function is to seal. One is to form the upper and lower bottoms of the cylindrical pressure vessel, and the other is when the pipeline reaches the end and is not intended to extend further, then a head is used to seal the pipe by welding. Products similar to the head in function include blind plates and pipe caps, but these two products can be disassembled. However, after the head is welded, it cannot be disassembled again. The corresponding pipe fittings include products such as pressure vessels, pipes, flanges, elbows, tris, and quadrics.
ASTM A182 F51/UNS S31803 Socket Welding Cap Drawing
ASTM A182 F51/UNS S31803 of Chemical Composition and Mechanical Properties
Specification
item
value
Technic
Forged
shape
Round
head code
Round
Surface Treatment
Smooth
Mounting hole diameter
3in
Pipe Class
1500
Application
Agricultural Irrigation, Automotive Repair, Heating Systems, Power Industry, Construction Engineering, Shipbuilding, petrochemical industry
warranty
3 Years
customized support
OEM, ODM, OBM
place of origin
China
Province
Jiangsu
brand name
NXF
model number
NXF-SW Cap
Connectivity
Welding
Overall Length
2in
Height
4in
Pressure
High Pressure
System of Measurement
inch
Pipe Features
Flexible, Corrosion-resistant, UV-Resistant, Chemical Resistant, No additional Features, underground rated
Product name
SW Cap
Material
Duplex Steel F51 (UNS S31803) / F60 (UNS 32205)
Standard
ANSI JIS DIN ASME
Outer Diameter
DN15-1200
Pressure
Class3000-9000
MOQ
1 Piece
Surface
Polishing Finished
Package
Standard Package
Application
Connect Pipes
Brand
NXF
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. 3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
Application
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


Phone
+8613917160311
Whatsapp
Whatsapp
+8613917160311
Wechat
Wechat
Inquiry
Email
info@nxf-group.com
Inquiry
Inquiry