Super duplex flanges

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Super duplex flanges
What distinguishes Super Duplex from Duplex flanges?

Super duplex steel has added 22% chromium in the alloy, which increases the level of pitting corrosion resistance. Thus, the super duplex flanges are used in more demanding environments like in the oil & gas industry.

They also exhibit better mechanical properties, including higher tensile and yield strengths.

Table of content

Introducing the first super duplex 2507 flanges manufacturer in India, know more about its surface finish

Can Super Duplex 2507 flanges be supplied with a pickled and passivated surface finish?

Super duplex 2507 flanges can be supplied with a pickled and passivated surface finish. They are common surface treatments that help to remove impurities & contaminants from the surface and improve corrosion resistance properties.

  • Pickling is the process of removing oxides, scales, etc., from the flange surface, using an acid solution.
  • The flanges are then thoroughly rinsed to remove any residual acids or contaminants.
  • Passivation includes passivating the flanges include treating it with a nitric or citric acid (passivating agent). The process restores the natural oxide layer on the surface and enhances the corrosion resistance properties.
  • The alloy 2507 pipe flanges are finally rinsed to remove residual passivating agents and then dried to avoid water stains.

Place your trust in Regent Steel as a Mumbai stockist of premium super duplex steel flanges as per ASTM A182. see is it suitable for seawater application

Super duplex 2507 flanges

Super duplex 2507 flanges

Flange super duplex

Flange super duplex

WNR 1.4507 blind flange

WNR 1.4507 blind flange

Are flange super duplex suitable for applications involving seawater?

The flange super duplex is a great option for seawater applications. The material is used in marine and offshore environments due to its resistance to chlorides.

They have a long life and need less maintenance in such conditions. Special coatings can also be applied on super duplex pipe flanges to improve their durability and performance.

As an authentic supplier of 2507 super duplex stainless steel flanges, we maintain an available inventory of UNS S32750 blind and weld neck flange sizes ranging from 1/2" to 36" for offshore sites.

Super duplex flanges specification
super duplex flanges specification

 

Size Pressure Class
1/8 to 24" NB PN6 to PN64 150 to 2500
Face type Standard Specification
FF, RF, RTJ ANSI/ ASME 16.5 /B16.47 series A & B ASTM A182 | ASME SA182
Discover our ASME SA182 super duplex pipe flanges types like lap joint and reducing flange etc. which can be customized accordance with ASME/ ANSI B16.5, check out WNR 1.4507 flange various types
Most famous types of super duplex 2507 flanges
2507 super duplex stainless steel flange

2507 super duplex stainless steel flange

  • 1/8 to 24 inch NB
  • ASTM A182 | ASME SA182
  • UNS S32750 and S32760
UNS S32750 slip on flange

UNS S32750 slip on flange

  • Raised Face (RF)
  • Flate Face (FF)
  • Ring Type Joint (RTJ)
Alloy 2507 weld neck flange

Alloy 2507 weld neck flange

  • Class: 150 to 2500
  • PN6 to PN64
  • ANSI/ASME B16.5
Are UNS S32760 forged and threaded flanges difficult to locate in unusual sizes. buy online with dealer price and At Regent Steel, analyze its composition.
WNR 1.4507 weld neck flange chemical properties
Others N C Cr Mo Ni
S=0.001 0.27 0.020 25 4.0 7
UNS S32750 slip on flange equivalent
MATERIAL UNS WERKSTOFF NR.
Super Duplex  S32760/S32750  1.4410
Alloy 2507 pipe flanges mechanical properties
Ultimate Tensile Strength, ksi 116 min.
Hardness Rockwell C 32 max.
0.1% Offset Yield Strength 0.2%, ksi 91 min.
Elongation in 2 inches, % 15 min.
0.2% Offset Yield Strength 0.2%, ksi 80 min.
Impact Energy, ft.-lbs. 74 min.
How much pressure is permitted to be applied at 2507 super duplex stainless steel flanges?

The amount of pressure permitted to be applied to 2507 super duplex stainless steel flanges depends on the following factors:

  • Each flange type comes with specific pressure ratings.
  • The dimension and class of the flange can significantly impact its pressure rating.
  • The temperature of the fluid.
  • The design codes and standards also specify it.
  • The type and quality of gasket used with the flange.
  • Operating conditions like thermal cycling, vibrations, etc.
super duplex 2507 vs al6xn
  • Both 2507 super duplex blind flange and AL6XN show good corrosion resistance properties.
  • AL6XN has higher strength and toughness. It has higher mechanical properties than 2507 super duplex material.
  • Welding UNS S32750 slip on flange can be tough due to its duplex structure whereas AL6XN possesses good weldability.
Are heat numbers available for super duplex steel flanges for traceability purposes?

Yes, heat numbers are available for super duplex steel flanges for traceability purposes. They are unique identifiers assigned during the manufacturing process.

These numbers provide specific information about the production history of the material. This will include details on chemical composition and mechanical properties.

Size chart of flange super duplex
Standard Class Diameter Diameter of Bolt Hole Bolt Size Number of Bolts Bolt Circle Diameter
AS4087 Flanges Table C Flanges 95 14 13 4 67
AS 2129 Flange Table F Flanges 95 14 13 4 67
Table J Flanges 114 17 16 4 83
PN14 Flanges 95 14 M12 4 67
Table D Flanges 95 14 13 4 67
Table E Flanges 95 14 13 4 67
Table H Flanges 114 17 16 4 83
ANSI B16.5 Flanges ANSI 150 Flanges 89 16 13 4 60
ANSI 300 Flanges 95 16 13 4 67
ANSI 900 Flanges 121 22 19 4 83
ANSI 600 Flanges 95 16 13 4 67
ANSI 1500 Flanges 121 22 19 4 83
ISO 7005 (DIN) Flange PN16 Flanges 95 14 M12 4 65
PN10 Flanges 95 14 M12 4 65
PN20 Flanges 90 16 M14 4 60.5
PN6 Flanges 80 11 M10 4 55
PN25 Flanges 95 14 M12 4 65
PN40 Flanges 95 14 M12 4 65
Face type of super duplex stainless steel flanges
Type Face Type
B Raised Face
A Flat Face
C Tongue Face
E Spigot
D Grooved Face
G Ring Recess
F Recess
H O-Ring Groove
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