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Kanakratna Steelage Private Limited
Kanakratna Steelage Private Limited
KHETWADI, Mumbai, Maharashtra
GST No. 27AAECK9442R1ZP
08048967694 75% Response Rate
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Super Duplex S32750

Super Duplex stainless like S32750, is a mixed microstructure of austenite and ferrite (50/50) which has improved strength over ferritic and austenitic steel grades. The main difference is that Super Duplex has a higher molybdenum and chromium content which gives the material greater corrosion resistance than standard duplex grades.

The balanced duel phase microstructure combines high strength with cost effective corrosion resistance particularly in high chloride environments. Super Duplex has the same benefits as its counterpart – it has lower alloying costs when compared with similar ferritic and austenitic grades with equipment corrosion resistance in chloride containing environments due to the material’s increased tensile and yield strength. In many cases this gives the purchaser the welcomed option of purchasing smaller thicknesses without the need to compromise on quality and performance.

Super Duplex UNS S32750 combines the most desirable characteristics of both ferritic and austenitic steels. It has excellent corrosion resistance to a wide variety of media, with outstanding resistance to pitting and crevice corrosion in seawater and other chloride containing environments due to its high chromium, molybdenum, and nitrogen level, with Critical Pitting Temperature exceeding 50°C.

The duplex microstructure gives this grade high strength UNS S32750 a low coefficient of thermal expansion and higher heat conductivity than austenitic steels and is suitable for working temperatures up to 300°C.

Listed in NACE MR 01 75 for sour service UNS S32750 and having gained ASME Approval for Pressure Vessel applications it can be used in a wide variety of applications.
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  • Super Duplex Flanges
  • Super Duplex Flanges
  • Super Duplex Flanges
  • Super Duplex Flanges
  • Super Duplex Flanges
  • Super Duplex Flanges
  • Super Duplex Flanges
  • Super Duplex Flanges
Super Duplex Flanges
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Super Duplex Flanges

Approx. Price: Rs 2,500 / PieceGet Latest Price
Product Brochure
Product Details:
Minimum Order Quantity1 Piece
Usage/ApplicationIndustrial
TypeFlate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Material StandardANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Size5-10 inch, 0-1 inch
Diameter1/8" NB TO 24" NB
BrandKanakratna Steelage
CLASS150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
GRADESS32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Super duplex flanges are a type of piping component that is designed to provide high levels of corrosion resistance and strength in demanding applications. These flanges are typically made from a special type of duplex stainless steel that contains higher amounts of chromium, molybdenum, and nitrogen than traditional duplex stainless steels. In this article, we will explore the properties of super duplex flanges, their applications, manufacturing methods, and their advantages over other types of flanges.

Properties of Super Duplex Flanges

Super duplex flanges are known for their high strength, corrosion resistance, and excellent resistance to stress corrosion cracking. These properties make them ideal for use in aggressive environments such as chemical processing, oil and gas production, and offshore drilling. The following are some of the key properties of super duplex flanges:

  1. Corrosion Resistance: Super duplex flanges are highly resistant to corrosion in a wide range of acidic and alkaline environments, as well as in seawater and other chloride-rich environments.

  2. Strength: Super duplex flanges have a higher strength than traditional duplex stainless steels, making them ideal for use in high-pressure applications.

  3. Stress Corrosion Cracking Resistance: Super duplex flanges are highly resistant to stress corrosion cracking, which is a common problem in harsh environments.

  4. Toughness: Super duplex flanges have a high toughness, which allows them to withstand impact and fatigue loading.

  5. Weldability: Super duplex flanges have good weldability, which allows for easy fabrication and installation.

Applications of Super Duplex Flanges

Super duplex flanges are used in a variety of applications where high strength and corrosion resistance are required. Some of the most common applications include:

  1. Oil and Gas Production: Super duplex flanges are commonly used in offshore oil and gas production, where they provide excellent resistance to corrosion and high pressures.

  2. Chemical Processing: Super duplex flanges are used in chemical processing plants, where they are exposed to highly corrosive chemicals and high temperatures.

  3. Water Treatment: Super duplex flanges are used in water treatment plants, where they provide resistance to chlorides and other corrosive substances.

  4. Marine Industry: Super duplex flanges are used in marine applications, where they are exposed to seawater and other corrosive environments.

  5. Pulp and Paper Industry: Super duplex flanges are used in the pulp and paper industry, where they are exposed to harsh chemicals and high temperatures.

Manufacturing Methods

Super duplex flanges are manufactured using a variety of methods, including forging, casting, and machining. The most common method used for manufacturing super duplex flanges is forging, which involves heating the steel to a high temperature and then shaping it using a hammer or press. Forging produces a high-quality, dense material that is free from defects and has excellent mechanical properties.

Machining is a third method that is used to manufacture super duplex flanges. This method involves removing material from a solid piece of steel using cutting tools such as lathes, milling machines, and drills. Machining can produce very precise shapes and dimensions, but it is not as cost-effective as forging or casting.

Advantages of Super Duplex Flanges

Super duplex flanges offer several advantages over other types of flanges, including:

  1. Corrosion Resistance: Super duplex flanges are highly resistant to corrosion, making them ideal for use in harsh environments.

  2. Strength: Super duplex flanges have a higher strength than traditional duplex stainless steels


Additional Information:
  • Production Capacity: WE HAVE TONS OF READY STOCK
  • Delivery Time: DEPENDS ON ORDER QUANTITY
  • Packaging Details: EXPORT WORTHY WOODEN PACKING
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  • Super Duplex Hexagon Bar 2507  UNS S32750
  • Super Duplex Hexagon Bar 2507  UNS S32750
  • Super Duplex Hexagon Bar 2507  UNS S32750
  • Super Duplex Hexagon Bar 2507  UNS S32750
  • Super Duplex Hexagon Bar 2507  UNS S32750
  • Super Duplex Hexagon Bar 2507  UNS S32750
Super Duplex Hexagon Bar 2507  UNS S32750
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Super Duplex Hexagon Bar 2507 UNS S32750

Approx. Price: Rs 650 / KilogramGet Latest Price
Product Brochure
Product Details:
Minimum Order Quantity10 Kilogram
MaterialStainless Steel
Length12 Meter
Usage/ApplicationIndustrial
Material GradeUNS S32750
Single Piece Length6 meter
Unit Length100MM TO METER

Super Duplex 2507® Stainless Steel Bar

UNS S32750

UNS S32750, commonly known as Super Duplex 2507®, is very similar to UNS S31803 Duplex. The difference between the two is the contents of chromium and nitrogen are higher in the Super Duplex Grade which in turn creates higher corrosion resistance as well as a longer lifespan. Super Duplex is composed of between 24% to 26% chromium, 6% to 8% nickel, 3% molybdenum, and 1.2% manganese, with the balance being iron. Also found in Super Duplex are trace amounts of carbon, phosphorus, sulfur, silicon, nitrogen, and copper. Benefits include: good weldability and workability, a high level of thermal conductivity and low coefficient of thermal expansion, high resistance to corrosion, fatigue, high resistance to pitting and crevice corrosion, high resistance to stress corrosion cracking (especially chloride stress corrosion cracking), high energy absorption, high strength, and erosion. Essentially, the Duplex alloys are a compromise; possessing some of the ferritic stress corrosion cracking resistance and much of the superior formability of the common austenitic stainless alloys, more cost effectively than the high nickel alloys.

Industries that use Super Duplex include:

• Chemical

• Marine

• Oil and Gas production

• Petrochemical

• Power

• Pulp and Paper

• Water desalinization

 

BAR SPECIFICATIONS

UNS

TYPE

AMS

ASTM

FEDERAL

CHARACTERISTICS

S32750

SUPER DUPLEX

A-479

Higher chromium and nitrogen content in Super Duplex makes it superior in corrosion resistance and enables a longer lifespan than Duplex.

 

CHEMISTRY ANALYSIS

C

MN

P

S

SI

CR

NI

MO

CU

OTHER

M/NM

.03

1.2

.035

.02

.08

24. – 26.

6. – 8.

3. – 5.

.5

N .24 – .32

INQUIRE


Additional Information:
  • Production Capacity: 50 TONS
  • Delivery Time: READY STOCK
  • Packaging Details: All our products are well packed in wooden cases/ cartons/ cases / or according to the client’s demand
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  • Super Duplex Sheet
  • Super Duplex Sheet
  • Super Duplex Sheet
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  • Super Duplex Sheet
Super Duplex Sheet
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Super Duplex Sheet

Approx. Price: Rs 600 / KilogramGet Latest Price
Product Brochure
Product Details:
Minimum Order Quantity10 Kilogram
Thickness1-2 mm, 2-3 mm, 3-4 mm, 4-5 mm, >5 mm, 0-1 mm
Material GradeUNS NO-32750/32760/
We are proficiently engaged in offering Super Duplex Sheet.

Application: Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, compressor and pump components.

Technical Info:

Chemical Composition (average %)

CSiMnCrMoNiCuNPREN
0.020.250.5525.83.47max. 0.500.3Min. 40

Standards UNS: S32750
Hot Forming Forging: 1200 to 950°C / Air cooling
Heat Treatment Solution annealing: 1150 to 1000°C (2102-1832°F) Air cooling
Heat Treatment Solution annealing / quenching: 1100°C (2012°F) Water , air (thickness below 2mm)
Structure as quenched: Ferrite + Austenite
Welding: Weldability of super duplex 32750 is good. The welding procedures are similar to those applied for conventional duplex grades. Welding consumables for different welding methods are available.

Mechanical Properties

Condition: solution annealed

ProductDimension Size mm0.2% proof stress N/mm2 min.Tensile strength N/mm2 min.Elongation A5 % min. L Q TImpact strength (ISO-V) J min. L Q T
St, Sch≤ 16050079525 - – - -100 - – - -
P≤ 75252) 252) - -100 60 - -

St = Bar ,
Sch = Forging,
P = Sheet or plate
L = Longitudinal, Q = Transverse, T = Tangential
1) < 3mm = A80mm specimen
The values for other products and dimensions shall be established by agreement.

High Temperature Properties

Condition: solution annealed/quenched

0.2% yield strength N/mm² min.Temperature
100°C (212°F)150°C (302°F)200°C (392°F)250°C (482°F)
450420400380

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  • Super Duplex Pipe
  • Super Duplex Pipe
  • Super Duplex Pipe
  • Super Duplex Pipe
  • Super Duplex Pipe
Super Duplex Pipe
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Super Duplex Pipe

Approx. Price: Rs 750 / KgGet Latest Price
Product Brochure
Product Details:
Size/Diameter0.5 inch
Single Piece Length6 meter, 3 meter
ApplicationUtilities Water, Drinking Water
Unit Pipe Length3 meter, 6 meter, 9 meter
Size1/2 inch, 3/4 inch
We are engaged in providing our clients with high quality pipes and tubes which are made of Duplex & Super Duplex steel.

Application: Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, compressor and pump components.

Technical Info:

Chemical Composition (average %)

CSiMnCrMoNiCuNPREN
0.020.250.5525.83.47max. 0.500.3Min. 40

Standards UNS: S32750
Hot Forming Forging: 1200 to 950°C / Air cooling
Heat Treatment Solution annealing: 1150 to 1000°C (2102-1832°F) Air cooling
Heat Treatment Solution annealing / quenching: 1100°C (2012°F) Water , air (thickness below 2mm)
Structure as quenched: Ferrite + Austenite
Welding: Weld ability of super duplex 32750 is good. The welding procedures are similar to those applied for conventional duplex grades. Welding consumables for different welding methods are available.

Mechanical Properties

Condition: solution annealed

ProductDimension Size mm0.2% proof stress N/mm2 min.Tensile strength N/mm2 min.Elongation A5 % min. L Q TImpact strength (ISO-V) J min. L Q T
St, Sch≤ 16050079525 - – - -100 - – - -
P≤ 75252) 252) - -100 60 - -

St = Bar ,
Sch = Forging,
P = Sheet or plate
L = Longitudinal, Q = Transverse, T = Tangential
1) < 3mm = A80mm specimen
The values for other products and dimensions shall be established by agreement.

High Temperature Properties

Condition: solution annealed/quenched

0.2% yield strength N/mm² min.Temperature
100°C (212°F)150°C (302°F)200°C (392°F)250°C (482°F)
450420400380

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Super Duplex Fittings
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Super Duplex Fittings

Approx. Price: Rs 600 / PieceGet Latest Price
Product Brochure
Product Details:
Material GradeSS316
Usage/ApplicationGas Pipe
Size2"
Is It CustomizedCustomized
I Deal InNew Only
We are a well-known Manufacturer, Supplier and Exporter of Super Duplex Fittings.

We are proficiently engaged in offering Super Duplex Sheet.

Application: Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, compressor and pump components.

Technical Info:

Chemical Composition (average %)

CSiMnCrMoNiCuNPREN
0.020.250.5525.83.47max. 0.500.3Min. 40

Standards UNS: S32750
Hot Forming Forging: 1200 to 950C / Air cooling
Heat Treatment Solution annealing: 1150 to 1000C (2102-1832F) Air cooling
Heat Treatment Solution annealing / quenching: 1100C (2012F) Water , air (thickness below 2mm)
Structure as quenched: Ferrite + Austenite
Welding: Weld ability of super duplex 32750 is good. The welding procedures are similar to those applied for conventional duplex grades. Welding consumables for different welding methods are available.

Mechanical Properties

Condition: solution annealed


ProductDimension Size mm0.2% proof stress N/mm2 min.Tensile strength N/mm2 min.Elongation A5 % min. L Q TImpact strength (ISO-V) J min. L Q T
St, Sch 16050079525 100 
P 75252) 252) - -100 60 - -

St = Bar ,
Sch = Forging,
P = Sheet or plate
L = Longitudinal, Q = Transverse, T = Tangential
1) < 3mm = A80mm specimen
The values for other products and dimensions shall be established by agreement.

High Temperature Properties

Condition: solution annealed/quenched

0.2% yield strength N/mm min.Temperature
100C (212F)150C (302F)200C (392F)250C (482F)
450420400380

Yes! I am interested

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