products
PRODUCTS DETAILS
Home > Products >
ASTM RF RTJ Stainless Steel Pipe Flange Class 300 Weld Neck Flange

ASTM RF RTJ Stainless Steel Pipe Flange Class 300 Weld Neck Flange

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, 306, 306L, 316, 316L
Application:
Connection, Decoration, Oil And Gas, Automative, New Energy, Chemical
Standard:
ASTM, AISI, GB, JIS, ANSI
Flange Face Type:
RF (Raised Face), RTJ (Ring Type Joint)
Package:
Standard Seaworthy Packagel, Wooden Cases...
Certification:
ISO, API, BV, CE ...
Connection:
Welding
Pressure:
Class150/300/600/9001500/2500
Dimensions:
1/2”, 2”, 3”, 4”, 6”, 8”, 10”, Up To 24”
Highlight:

ASTM stainless steel pipe flange

,

RTJ stainless steel pipe flange

,

RF stainless steel tube flange

Product Description
ASTM RF RTJ Stainless Steel Pipe Flange Class 300 Weld Neck Flange
Product Specifications
Material
304, 304L, 306, 306L, 316, 316L
Application
Connection, Decoration, Oil and Gas, Automotive, New Energy, Chemical
Standard
ASTM, AISI, GB, JIS, ANSI
Flange Face Type
RF (Raised Face), RTJ (Ring Type Joint)
Package
Standard Seaworthy Packaging, wooden cases
Certification
ISO, API, BV, CE
Connection
Welding
Pressure
Class150/300/600/900/1500/2500
Dimensions
1/2", 2", 3", 4", 6", 8", 10", up to 24"
Product Description
A weld neck flange features a long, tapered hub that smoothly connects to the pipe or fitting via butt welding. During installation, the pipe end is inserted into the flange and welded around its circumference, forming a strong, leak-proof joint. The hub's design reinforces the flange, reducing the likelihood of distortion or damage.
Widely used in high-pressure and high-temperature applications across industries such as petrochemical, oil and gas, and power generation, weld neck flanges are produced from materials like carbon steel, stainless steel, and alloy steel to meet diverse operational demands.
Product Dimensions
DN Pipe OD Connection Size Flange Thickness (mm) Flange ID Flange OD Bolt Hole Circle Diameter
10 17.2 14 14 18 90 60
15 21.3 18 14 22.5 95 65
20 26.9 25 16 27.5 105 75
25 33.7 32 16 34.5 115 85
32 42.4 38 18 43.5 140 100
40 48.3 45 18 49.5 150 110
50 60.3 57 19 61.5 165 125
65 76.1 76 20 77.5 185 145
80 88.9 89 20 90.5 200 160
100 114.3 108 22 116 220 180
125 139.7 133 22 143.5 250 210
150 168.3 159 24 170.5 285 240
200 219.1 219 24 221.5 340 295
250 273 273 26 276.5 395 350
300 323.9 325 26 328 445 400
350 355.6 377 28 360 505 460
400 406.4 426 32 411 565 515
450 457 480 36 462 615 565
500 508 530 38 513.5 670 620
600 610 630 42 616.5 780 725
Product Images
ASTM RF RTJ Stainless Steel Pipe Flange Class 300 Weld Neck Flange 0 ASTM RF RTJ Stainless Steel Pipe Flange Class 300 Weld Neck Flange 1 ASTM RF RTJ Stainless Steel Pipe Flange Class 300 Weld Neck Flange 2
Frequently Asked Questions
Q: Are you manufacturer or trading company?
A: We are not only manufacturer but also a trading company, with more than 12 years export experience.
Q: What services do you provide?
A: We supply various metal raw materials and products, including pipes, pipe fittings, flanges, coil, sheet, round bar and more.
Q: Do you provide free samples?
A: We can provide free samples, but the shipping cost needs to be covered by the customer.
Q: What is your minimum order quantity?
A: The MOQ varies by product. Please check the product detail page or contact us with the product link for specific information.
Q: What is your production lead time?
A: Typically 5-10 days for in-stock items, or 15-20 days for out-of-stock items, depending on quantity.
Sitemap |  Privacy Policy | China Good Quality Stainless Steel Buttweld Pipe Fittings Supplier. Copyright © 2009-2025 Zhejiang Yuhao Stainless Steel Co., Ltd . All Rights Reserved.