What Is ASTM A694 F52 Material?

A ASTM A694 F52 material is a crucial channel that helps in connecting piping equipment to transport fluid and steam in refineries and factories. The ASTM A694 F52 flanges cover standard specifications for carbon and alloy steel that helps in the high transmission of media across stress-induced conditions.

The A694 Grade F52 threaded flange is seen in applications where there is a need for quick fixes allowing for an easy installation procedure. The threaded screwed flange has threads that don’t require any welding process. They are best suited for low-pressure and temperature environments.

ASTM A694 F52 Flanges

High Yield F52 Plate Flange Manufacturer in India


A Grade F52 plate Flange is seen in lower temperature setups and is seen in pipes of sizes NPS 2 or lower. These flange are welded using a single fillet weld and are recommended for low pressure and temperature setups.

Refer to A694 Grade F52 Blind Flanges Specification and Heat Treatment


A high yield A694 Gr F52 blind flange possesses superior strength and helps blank the ends of the piping equipment. These flange don’t possess a bore to the center that allows them to terminate the flow of pressurized media. The ASME SA 694 F52 orifice flanges possess a small hole with two top holes that are drilled in each of the flange. They are built to measure the flow rate in the system. The flange are available in raised, flat, or ring-type joint face.


ASTM A694 F52 Material Specification

Size In Ready Stock :

Size In Ready Stock :

  • PN2.5 To PN400
  • NPS: ½" to 24"
  • DN15 To DN1500
  • Contact ASTM A694 F52 flanges manufacturer in India for above 48 Inch
Pressure Class :

Pressure Class :

  • Class 150 and 300
  • Class 600 and 900
  • Class 1500 and 2500
International Standard :

International Standard :

Maximum Size :

Maximum Size :

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

Manufacturing Way :

  • Forged
  • Cast
  • Plate
Bolts Hole Number :

Bolts Hole Number :

  • 4 To 48
A694 F52 Forging Temperature :

A694 F52 Forging Temperature :

  • 350°C
Advantages :

Advantages :

  • Highly Durable
Surface Finish :

Surface Finish :

  • Stock finish
  • Polished finish
  • Mirror finish
Working Temperature :

Working Temperature :

  • 1000℉
Face Types :

Face Types :

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

Threads Types :

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

Wall Thickness :

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

Use For :

  • Nuclear Energy
  • Oil & gas plants
  • Petrochemicals
  • Power Generation
Inspection Plan :

Inspection Plan :

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

Melting Point

  • 1375°C To 1450°C
End Types :

End Types :

  • Welding
  • Threaded
Marking Details :

Marking Details :

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

UNS Number :

  • UNS S32950
Germany Standards :

Germany Standards :

  • DIN 2561
  • DIN 2632
  • DIN 2633
  • DIN 2527
  • DIN 2501
  • DIN 2576
European Standards :

European Standards :

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

Japanese Standard :

  • JIS B2220
AWWA Standard :

AWWA Standard :

  • AWWA c207
BS Standard :

BS Standard :

  • BS4504
Value Added Services :

Value Added Services :

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

Logistics :

  • By Sea
  • By Air
  • Malaysia = 10 day
  • Philippines = 14 day
  • UAE = 5 day
  • Indonesia = 9 days
  • Kuwait = 10 day
  • Singapore = 8 days
  • Oman = 5 days
  • Bahrain = 9 day
Packaging  :

Packaging :

  • Carton Box
  • Wooden Cases
  • Wooden Pallet

Heat Treatment for A694 F52 Flange

Heat Treatment Temperature Range
Normalizing 1700°F to 1800°F
Quenching and Tempering (if applicable) 1600°F to 1700°F
Post-Weld Heat Treatment 1100°F to 1300°F
Stress Relieving 593°C to 704°C

Get F52 Carbon Steel Slip On Flanges Tested With Hardness and Ultrasonic Inspection


The F52 carbon steel slip on flange possesses a higher content of carbon and is seen in lower pressure applications. These flange are easy to install and are cheaper in comparison to other flange that are seen in the oil and gas industry.

What is The Difference Between A105 and A694 F52

Property ASTM A105 ASTM A694 F52
Material Type Carbon Steel Carbon Steel
Applications Low to medium pressure High pressure
Pressure Rating Up to 2,000 PSI Up to 10,000 PSI
Temperature Range Up to 800°F 426°C
Tensile Strength 70,000 PSI (Minimum) 70,000 PSI (Minimum)
Yield Strength 30,000 PSI (Minimum) 52,000 PSI (Minimum)
Brinell Hardness 187 HB 200 HB
Corrosion Resistance Less aggressive environments Better corrosion resistance

A694 F52 Hardness

  • Brinell Hardness = 187 to 235 (HB)

Impact Test of High Yield F52 Flange

  • Charpy V-notch test = -155°F (-104°C)

Check ASME SA 694 F52 Forged Flanges Impact Test and Chemical Composition

Carbon Steel F52 Pipe Flanges Equivalent

Grade :

  • ASTM A694 F52 Flange

UNS Number:

  • UNS S32950

Material :

  • Carbon Steel

ASTM A694 F52 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%
Chromium [Cr] :

Chromium [Cr] :

  • -
Since 22 Years, Experts in Manufacturing A694 Gr F52 Weld Neck Flanges for Refinery Plant, Refer Tensile Strength

A Carbon steel F52 weld neck flange is manufactured with a long tapered hub that helps reduce the stress and concentrate excess pressure on the hub. These flange are butt-welded and are seen in high-pressure and temperature setups.

ASME SA694 Grade F52 Forged Flanges Tensile Strength

Tensile Strength in KSI Tensile Strength in MPa
66 KSI (min) 455 MPa (min)

ASTM A694 F52 Yield Strength

Yield Strength in KSI Yield Strength in MPa
52 KSI (min) 360 MPa (min)

Types Of ASTM A694 F52 Flanges

 ASTM A694 F52 Slip On Flange

ASTM A694 F52 Slip On Flange

High yield steel F52 Weld Neck Flange

High yield steel F52 Weld Neck Flange

A694 Grade F52 Blind Flange

A694 Grade F52 Blind Flange

ASTM A694 Gr F52 Plate Flange

ASTM A694 Gr F52 Plate Flange

Grade F52 Spectacle Blind Flanges

Grade F52 Spectacle Blind Flanges

Carbon steel F52 Threaded Flange

Carbon steel F52 Threaded Flange

ASTM A694 Grade F52 Socket Weld Flange

ASTM A694 Grade F52 Socket Weld Flange

A694 Gr F52 Long Weld Neck Flange

A694 Gr F52 Long Weld Neck Flange

High Yield F52 Lap Joint Flange

High Yield F52 Lap Joint Flange

A694 Grade F52 Orifice Flanges

A694 Grade F52 Orifice Flanges

F52 Carbon Steel Reducing Flange

F52 Carbon Steel Reducing Flange

A694 Gr F52 Flat Face Flange

A694 Gr F52 Flat Face Flange


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