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Alloy Steel Weld Neck Pipe Flanges , 2500 # ASTM A182 F9 High Pressure Pipe Flanges

Categories Forged Steel Flanges
Brand Name: ZZ
Model Number: ASTM A182 F9
Certification: ISO, CE
Place of Origin: CHINA
MOQ: 1 Piece
Price: Negotiable
Payment Terms: T/T, Western Union, MoneyGram, D/P, D/A, L/C
Supply Ability: 50000 PCS Per Month
Delivery Time: 10-15 Days
Packaging Details: Wooden Pallets and Wooden Cases, LCL, 20ft Container
Connection: Butt Weld
Size: 1/2" - 60"
Standard: ANSI, DIN, JIS, BS, ASME
Material: Stainless Steel,Carbon Steel,Alloy Steel
Pressure: Class150 / 300 / 600 / 900 / 1500 / 2500,150#-2500#,5K-30K, PN6, 10, 16, 25, 40
Keyword: Alloy Steel, WNRF Flange, ASME B16.5, Class 300 Weld Neck Flange
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Alloy Steel Weld Neck Pipe Flanges , 2500 # ASTM A182 F9 High Pressure Pipe Flanges

Alloy Steel Weld Neck Flange Forged Steel 4" 2500# ASTM A182 F9 ASME B16.5

High Pressure Pipe Flanges

Professional supplier of forged steel high pressure pipe flanges export 4" 2500# weld neck flange RF alloy steel ASTM A182 F9 ASME B16.5 for Vietnam project.

The flange pressure ratings are 150#, 300#, 400#, 600#, 900#, 1500# and 2500#. We can express them in different ways that 150 Lb, 150 Lbs or Class 150. The higher the class is, the thicker the metal is. Thus a higher pressure can be handled.

Alloy Steel Weld Neck Flange Dimensions

SizeNPS 1/2" - 24", DN15 - DN600
PressureClass 150, 300, 600, 900, 1500, 2500, 150#-2500#, JIS 5K,10K, 20K, 30K, PN6 - PN40
StandardASME B16.5, B16.47, DIN, JIS
Seal TypesRaised Face, Flat Face, Ring Type Joint, Male-Female
MaterialASTM A182 F1, F5, F9, F11, F12, F22, F91

2500 Rating Flange Weight Chart

Since the pressure is large, the diameter covers NPS 1/2 to 12 only. And not cover the socket weld flange, because it's pressure up to 1500# only.

4" Weld Neck Flange


The workers marked " WNFF Flange 4" 2500# ASTM A182 F9 ASME B16.5 ZZ165" on weld neck flanges. It covers flange type, size, pressure, material grade, stadnard and heat No.


Surfaced the alloy steel grade 9 flanges with anti-rust oil againest the rust during the shipment.

Use plastic film to wrapped of all forged steel flanges after done anti-rust oil.


Put 4 inch weld neck flanges on wooden case and bundle it with packing belts.

Print and stick shipping mark on the outside of wooden case for easy indentification.


  1. Visual the surface. Such as dents, die marks, porosity, smooth surface.
  2. Check the marking. Such as dimensions, material, flange & face types, pressure, heat No.
  3. Measure the dimensions. Such as diameter,thickness of flange body and face.

Why Choose Us?

  • Fast delivery
  • Safe package
  • Abundant stock
  • Reasonable price
  • One stop service

ASTM A182 F9 Chemical Composition



ASTM A182 F9 Mechanical Properties

Tensile StrengthYield StrengthElongation
380 (Mpa)585 (Mpa)20 (%)
Quality Alloy Steel Weld Neck Pipe Flanges , 2500 # ASTM A182 F9 High Pressure Pipe Flanges for sale
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