What is A694 F65 Material

A A694 F65 material is a protruded lip that allows easy attachment and transfer of the contact force with other piping grades. The ASTM A694 F65 flanges is a low alloy steel grade that has moderate strength and possesses excellent resistance to corrosive media. The flange are efficient to connect the piping system and permit repair and maintenance. A Grade F65 flange is alloyed with iron and carbon and is used in high pressures in the oil and gas industry.

ASTM A694 F65 Flanges

Manufacturer Of SA694 Grade F65 Blind Flanges in India

A ASTM A694 Gr F65 blind flange is manufactured without a bore and is generally preferred to blank the ends of different hydraulic equipment. These flange can hold extreme pressure of fluids and gases.

Get ASME SA694 F65 Slip On Flanges Flanges Size Ranging From 1/4" to 24" With Specification


The A694 F65 slip on flange is fundamentally a ring that is placed over the pipe and welded on the interior and exterior using a fillet weld. These flange are available at reasonable prices, making them highly desirable in the oil and gas industry. They are designed in raised or flat shapes.

ASTM A694 F65 Material Specification

Available Sizes :

Available Sizes :

  • PN2.5 To PN400
  • NPS: ½" to 24"
  • DN15 To DN1500
  • Contact ASTM A694 F65 flanges manufacturer in India for above 48 Inch
Pressure Class :

Pressure Class :

  • 150 LB & 300 LB
  • 600 LB & 900 LB
  • 1500 LB & 2500 LB
International Standard :

International Standard :

Maximum Size :

Maximum Size :

  • 26" To 60" As Per ASME B16.47
Manufacturing Process :

Manufacturing Process :

  • Plate
  • Forged
  • Cast
No. of Bolts Hole :

No. of Bolts Hole :

  • 4 To 48
Finish :

Finish :

  • Stock & Smooth
  • Cold Water Finish
  • Spiral Serrated
  • Concentric Serrated
  • Mirror Finish
Available Faces :

Available Faces :

  • Tongue & Groove Face
  • RTJ Face
  • RF Face
  • FF Face
  • Male & Female Face
Types of Threads :

Types of Threads :

  • MPT & MNPT Threads
  • BSP Threads
  • FPT Threads
  • NPT Threads
  • BSPT Threads
Popular Thickness :

Popular Thickness :

  • Schedule 10/ 20/ 40
  • Schedule 60/ 80/ 100
  • Schedule 120/ 140/ 180
Use For :

Use For :

  • Power Generation
  • Nuclear Energy
  • Oil & gas plants
  • Petrochemicals
Testing Methods :

Testing Methods :

  • Material inspection
  • Impact test
  • PMI test
  • Hardness test
  • Tensile test
Melting Point

Melting Point

  • 1480°C To 1526°C
End Method :

End Method :

  • Welding
  • Threaded
Marking Info :

Marking Info :

  • Standard & Heat No.
  • Manufacturers Name
  • Grade & Material
  • Size & Schedule
Life :

Life :

  • 10 Years
DIN Standards (Germany) :

DIN Standards (Germany) :

  • DIN 2633
  • DIN 2501
  • DIN 2632
  • DIN 2576
  • DIN 2561
  • DIN 2527
EN Standards (European) :

EN Standards (European) :

  • EN 1092-2
  • EN 1092-1
  • EN 1092-1 TYPE 13
  • EN 1092-1 TYPE 01
  • EN 1092-1 TYPE 02
  • EN 1092-1 TYPE 05
  • EN 1092-1 TYPE 11
JIS Standard (Japanese) :

JIS Standard (Japanese) :

  • JIS B2220
AWWA Standard :

AWWA Standard :

  • AWWA c207
BS Standard :

BS Standard :

  • BS4504
Value Added Services :

Value Added Services :

  • Minor Fabrication
  • Casting
  • Polishing
  • Beveling end
  • Threading
Logistics :

Logistics :

  • By Sea
  • By Air
  • South Africa = 25 - 30 days
  • Belgium = 40 day
  • Italy = 30 day
  • UAE = 5 day
  • Saudi Arabia = 7 day
  • Netherland = 30 day
  • Germany = 21 day
  • Qatar = 7 days
  • USA = 40-60 days
  • Uk = 30 day
  • France = 30 day
Types of Packaging :

Types of Packaging :

  • Wooden Pallet
  • Wooden Cases
  • Carton Box
Available Documentation :

Available Documentation :

  • Fumigation certificates
  • Raw material test reports
  • Material traceability records
Applicable Fluids :

Applicable Fluids :

  • Oil and Gas
  • Water & Air
  • Steam
Types of Coating :

Types of Coating :

  • FBE coating
  • PTFE coating
  • PE coating
  • Back painting
  • Anti rust
  • Zinc coatings

View Carbon steel F65 Weld Neck Flanges Impact Test and Chemical Composition


The ASTM A694 Grade F65 weld neck flange is a high-strength grade in the petrochemical industry. These flange are recognized by their long tapered hub which gives them good resistance to bending conditions. The weld neck type flange are seen in elevated pressure and temperature environments.

ASTM A694 F65 Impact Test

  • -29°C (minimum)

  • -20°F (minimum)

A694 Grade F65 Forging Temperature

  • 900°C To 1200°C

ASTM A694 F65 Chemical Composition

Carbon [C] :

Carbon [C] :

  • ≤ 0.30%
Manganese [Mn] :

Manganese [Mn] :

  • ≤1.60%
Phosphorus [P] :

Phosphorus [P] :

  • ≤0.025%
Sulfur [S] :

Sulfur [S] :

  • ≤0.025%
Silicon [Si] :

Silicon [Si] :

  • 0.15-0.35%

Yield Strength of ASTM A694 F65 Flanges

  • 450 MPa (minimum)

  • 65 KSI (minimum)

Density for ASME SA694 F65 Blind Flanges

  • 7.8 – 7.9 g/cm³

Check Benefits Of High Yield F65 Socket Weld Flange and Hardness Requirement

An Carbon steel F65 socket weld flange has static strength similar to a slip on flange and is usually welded using a single fillet weld. The flange are seen in smaller bore pipes and are not suited for certain processes due to their corrosion issues.


Top 6 Benefits Of Carbon Steel F65 Flanges

Top 6 Benefits Of Carbon Steel F65 Flanges

Hardness for High Yield F65 Forged Flange

Brinell Hardness Rockwell B
255 HBW (Maximum) 95 to 105 HRB

Also Refer F65 Carbon Steel Forged Flanges Heat Treatment and Mechanical Properties

The A694 Grade F65 threaded flange is used in systems where welding procedures cannot take place. These flange are easy to install as they have threads that match with subsequent pipes. The threaded flange is seen in applications where stress on the system is low.


ASTM A694 Gr F65 Pipe Flanges Heat Treatment

Normalising Heat to 890°C To 960°C
Hardening Heat to 890°C To 960°C
Tempering Heat to 540°C To 650°C

A694 F65 Flange Mechanical Properties

Tensile Strength :

  • 530 KSI

Elongation :

  • 20% (minimum)

Types of ASTM A694 F65 Flanges

 ASTM A694 F65 Slip On Flange

ASTM A694 F65 Slip On Flange

High Yield Steel F65 Weld Neck Flange

High Yield Steel F65 Weld Neck Flange

A694 F65 Blind Flange

A694 F65 Blind Flange

A694 Grade F65 Plate Flange

A694 Grade F65 Plate Flange

ASTM A694 Gr F65 Spectacle Blind Flanges

ASTM A694 Gr F65 Spectacle Blind Flanges

Carbon steel F65 Threaded Flange

Carbon steel F65 Threaded Flange

High Yield F65 Socket Weld Flange

High Yield F65 Socket Weld Flange

ASME SA 694 F65 Long Weld Neck Flange

ASME SA 694 F65 Long Weld Neck Flange

Grade F65 Lap Joint Flange

Grade F65 Lap Joint Flange

SA 694 F65 Orifice Flanges

SA 694 F65 Orifice Flanges

A694 Gr F65 Reducing Flange

A694 Gr F65 Reducing Flange

F65 Carbon Steel Flat Face Flange

F65 Carbon Steel Flat Face Flange


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