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Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications

Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications

MOQ: 100KGS
Price: Negotation
Standard Packaging: They are usually packed in conventional export wooden cases.
Delivery Period: 2-10 work days
Payment Method: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Capacity: 2000tons/per month
Detail Information
Place of Origin
China
Brand Name
Yuhao
Certification
ISO, API, BV, CE ...
Model Number
flanges
Material:
304, 304L, 316, 316L
Application:
Connection, Decoration, Oil And Gas, Automative, Shipbuilding, Construction
Standard:
ASTM, AISI, GB, JIS
Package:
Standard Seaworthy Packagel, Wooden Cases...
Connection:
Welding
Pressure:
Class150/300/600/9001500/2500
Type:
Pipe Fitting
Shape:
Round Shape
Size:
DN15-DN2000
Product Description

Stainless Steel Weld Neck Flange



►Product Description

Stainless Steel Weld Neck Flanges (WN Flanges) stand out as a cornerstone in industrial piping systems, celebrated for their exceptional strength, corrosion resistance, and reliable sealing performance. As a premium stainless steel weld neck flange option, these components are crafted from high-grade stainless steel alloys, including 304 and 316, and engineered to withstand harsh operating conditions—making them a top choice for critical applications across diverse industries.

Unlike other flange types, the stainless steel weld neck flange features a long, tapered hub that seamlessly integrates with the piping, distributing stress evenly across the joint and minimizing pressure concentration. This unique design of the weld neck flange not only enhances structural integrity but also facilitates full penetration welding, creating a leak-tight seal essential for high-pressure, high-temperature (HPHT) systems. Whether handling corrosive chemicals, abrasive fluids, or extreme temperature fluctuations, our stainless steel weld neck flanges deliver consistent performance and extended service life.

Our stainless steel weld neck flanges are available in a comprehensive range of sizes, pressure classes (from 150 to 2500), and finishes to meet specific project requirements. The 304 stainless steel weld neck flange offers excellent general corrosion resistance, making it ideal for food processing, water treatment, and mild chemical applications. For more demanding environments involving chloride-rich media, marine settings, or aggressive chemicals, the 316 stainless steel weld neck flange provides superior resistance to pitting and crevice corrosion, ensuring long-term durability in even the harshest conditions.

Precision manufacturing is at the core of our stainless steel weld neck flange quality. Each weld neck flange undergoes strict quality control checks, including dimensional accuracy verification, material composition testing, and surface finish inspection, to comply with international standards such as ANSI/ASME B16.5, DIN, and EN. This commitment to quality ensures our stainless steel weld neck flanges seamlessly integrate into existing piping systems, reducing installation time and minimizing long-term maintenance costs.

Widely adopted in oil and gas, petrochemical, chemical processing, power generation, and pharmaceutical industries, our stainless steel weld neck flanges are trusted by engineers and contractors worldwide for their reliability and versatility. Whether for new construction projects or retrofitting existing systems, these stainless steel weld neck flanges provide a robust, cost-effective solution that balances optimal performance and longevity.

Invest in our premium stainless steel weld neck flanges for a piping solution that unites durability, corrosion resistance, and precision engineering. Backed by comprehensive technical support and competitive pricing, our stainless steel weld neck flanges are designed to exceed your expectations and support the success of your industrial operations.


►Product  Size

DN Pipe OD Connection Size Flange Thickness(mm)
C
Flagne ID
A B Flange OD Bolt Hole Circle Diameter A B
10 17.2 14 90 60 14 18 15
15 21.3 18 95 65 14 22.5 19
20 26.9 25 105 75 16 27.5 26
25 33.7 32 115 85 16 34.5 33
32 42.4 38 140 100 18 43.5 39
40 48.3 45 150 110 18 49.5 46
50 60.3 57 165 125 19 61.5 59
65 76.1 76 185 145 20 77.5 78
80 88.9 89 200 160 20 90.5 91
100 114.3 108 220 180 22 116 110
125 139.7 133 250 210 22 143.5 135
150 168.3 159 285 240 24 170.5 161
200 219.1 219 340 295 24 221.5 222
250 273 273 395 350 26 276.5 276
300 323.9 325 445 400 26 328 328
350 355.6 377 505 460 28 360 381
400 406.4 426 565 515 32 411 430
450 457 480 615 565 36 462 485
500 508 530 670 620 38 513.5 535
600 610 630 780 725 42 616.5 636


►Shot Shoot

Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications 0

Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications 1

Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications 2


►FAQ

Q1: Delivery time?

A: 1- 7 days for small order.10- 20 days for big order.


Q2: Are you manufacturer or trading company?

A: We are not only manufacturer but also a trading company,we have more than 12years export experience.


Q3: What is your minimum order quantity?

A: The MOQ for each product is different, so it would be recommended to refer to the detail page of the product you are interested in. If you need further clarification, send me the product link, and I will reply as soon as possible.


Q4: Do you provide samples ? Is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.


Q5: How long is your production lead time?

A: 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.

products
PRODUCTS DETAILS
Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications
MOQ: 100KGS
Price: Negotation
Standard Packaging: They are usually packed in conventional export wooden cases.
Delivery Period: 2-10 work days
Payment Method: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Capacity: 2000tons/per month
Detail Information
Place of Origin
China
Brand Name
Yuhao
Certification
ISO, API, BV, CE ...
Model Number
flanges
Material:
304, 304L, 316, 316L
Application:
Connection, Decoration, Oil And Gas, Automative, Shipbuilding, Construction
Standard:
ASTM, AISI, GB, JIS
Package:
Standard Seaworthy Packagel, Wooden Cases...
Connection:
Welding
Pressure:
Class150/300/600/9001500/2500
Type:
Pipe Fitting
Shape:
Round Shape
Size:
DN15-DN2000
Minimum Order Quantity:
100KGS
Price:
Negotation
Packaging Details:
They are usually packed in conventional export wooden cases.
Delivery Time:
2-10 work days
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
2000tons/per month
Product Description

Stainless Steel Weld Neck Flange



►Product Description

Stainless Steel Weld Neck Flanges (WN Flanges) stand out as a cornerstone in industrial piping systems, celebrated for their exceptional strength, corrosion resistance, and reliable sealing performance. As a premium stainless steel weld neck flange option, these components are crafted from high-grade stainless steel alloys, including 304 and 316, and engineered to withstand harsh operating conditions—making them a top choice for critical applications across diverse industries.

Unlike other flange types, the stainless steel weld neck flange features a long, tapered hub that seamlessly integrates with the piping, distributing stress evenly across the joint and minimizing pressure concentration. This unique design of the weld neck flange not only enhances structural integrity but also facilitates full penetration welding, creating a leak-tight seal essential for high-pressure, high-temperature (HPHT) systems. Whether handling corrosive chemicals, abrasive fluids, or extreme temperature fluctuations, our stainless steel weld neck flanges deliver consistent performance and extended service life.

Our stainless steel weld neck flanges are available in a comprehensive range of sizes, pressure classes (from 150 to 2500), and finishes to meet specific project requirements. The 304 stainless steel weld neck flange offers excellent general corrosion resistance, making it ideal for food processing, water treatment, and mild chemical applications. For more demanding environments involving chloride-rich media, marine settings, or aggressive chemicals, the 316 stainless steel weld neck flange provides superior resistance to pitting and crevice corrosion, ensuring long-term durability in even the harshest conditions.

Precision manufacturing is at the core of our stainless steel weld neck flange quality. Each weld neck flange undergoes strict quality control checks, including dimensional accuracy verification, material composition testing, and surface finish inspection, to comply with international standards such as ANSI/ASME B16.5, DIN, and EN. This commitment to quality ensures our stainless steel weld neck flanges seamlessly integrate into existing piping systems, reducing installation time and minimizing long-term maintenance costs.

Widely adopted in oil and gas, petrochemical, chemical processing, power generation, and pharmaceutical industries, our stainless steel weld neck flanges are trusted by engineers and contractors worldwide for their reliability and versatility. Whether for new construction projects or retrofitting existing systems, these stainless steel weld neck flanges provide a robust, cost-effective solution that balances optimal performance and longevity.

Invest in our premium stainless steel weld neck flanges for a piping solution that unites durability, corrosion resistance, and precision engineering. Backed by comprehensive technical support and competitive pricing, our stainless steel weld neck flanges are designed to exceed your expectations and support the success of your industrial operations.


►Product  Size

DN Pipe OD Connection Size Flange Thickness(mm)
C
Flagne ID
A B Flange OD Bolt Hole Circle Diameter A B
10 17.2 14 90 60 14 18 15
15 21.3 18 95 65 14 22.5 19
20 26.9 25 105 75 16 27.5 26
25 33.7 32 115 85 16 34.5 33
32 42.4 38 140 100 18 43.5 39
40 48.3 45 150 110 18 49.5 46
50 60.3 57 165 125 19 61.5 59
65 76.1 76 185 145 20 77.5 78
80 88.9 89 200 160 20 90.5 91
100 114.3 108 220 180 22 116 110
125 139.7 133 250 210 22 143.5 135
150 168.3 159 285 240 24 170.5 161
200 219.1 219 340 295 24 221.5 222
250 273 273 395 350 26 276.5 276
300 323.9 325 445 400 26 328 328
350 355.6 377 505 460 28 360 381
400 406.4 426 565 515 32 411 430
450 457 480 615 565 36 462 485
500 508 530 670 620 38 513.5 535
600 610 630 780 725 42 616.5 636


►Shot Shoot

Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications 0

Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications 1

Stainless Steel Weld Neck Flange – High-Precision, Corrosion-Resistant for Industrial Applications 2


►FAQ

Q1: Delivery time?

A: 1- 7 days for small order.10- 20 days for big order.


Q2: Are you manufacturer or trading company?

A: We are not only manufacturer but also a trading company,we have more than 12years export experience.


Q3: What is your minimum order quantity?

A: The MOQ for each product is different, so it would be recommended to refer to the detail page of the product you are interested in. If you need further clarification, send me the product link, and I will reply as soon as possible.


Q4: Do you provide samples ? Is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.


Q5: How long is your production lead time?

A: 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.