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Great Steel & Metals


Duplex & Super Duplex Plates

Duplex Stainless Steel

Duplex stainless steel plate in specification S31803 (1.4462) and S32205.

Duplex stainless steel was developed as a product which could improve upon some of the technical weaknesses of the standard austenitic and ferritic stainless steels that are available in the market. Both have low strength, ferritic steels have poor low temperature toughness, and austenitic steels have a very low resistance to stress corrosion cracking. Duplex stainless has a micro-structure which is split roughly 50:50 between austenite and ferrite and balancing of these phases provides the following benefits: 

 

  • Higher strength which is around twice that of Type 304 austenitic stainless steel. This leads to reduced plate thicknesses being used in fabrications reducing the weight which is of particular significance in items such as pressure vessels, storage tanks, and structural applications such as bridges
  • Good weld-ability in thick plates
  • Resistance to stress corrosion cracking of importance in many applications including hot water tanks, process plant, brewing tanks, and desalination plant

 

Super Duplex Stainless Steel

We hold stock of Super Duplex stainless steel plate specifications UNS S32750 (1.4410) and UNS S32760 (1.4501). In order to get more specific information on these steel grades click the following links:

 

  • Super Duplex S32750
  • Super Duplex S32760

 

A Super Duplex stainless steel is a type of Duplex stainless steel with enhanced corrosion resistance which is categorized by its PREN being greater than 40. A standard Duplex like the S31803 grade stocked by us has a PREN of around 35. The Pitting Resistance Equivalent Number (PREN) is widely used as a means of comparing the relative corrosion resistance of different steel grades. The PREN is obtained by applying a mathematical formula to the chemical composition of a steel so that PREN = %Cr (3.3 x %Mo) (16 x %N). 


We export to: Bahrain, Brazil, Chile, Egypt, India, Iran, Iraq, Kuwait, Lebanon, Middle East, Mexico, Nigeria, Oman, Saudi Arabia, South Africa, South America, Qatar, Russia, Turkey, United States, UAE, Venezuela, Yemen & around the globe.


 

 


Duplex Steel Plate S31803

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Approx. Rs 450 / Kilogram(s)Get Latest Price

Product Details:
BrandGREAT STEEL & METALS
ThicknessVARIOUS
SizeVARIOUS
CONDITIONNEW
PACKAGINGAS PER DEMAND

UNS 31803 (F51), UNS 32205 (F60) Alloy 2205, UNS S32550 (F61), UNS S 32750 (F53), Alloy 2507 and UNS 32760 (F55)

Duplex Steel Plate S31803 is a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most widely used duplex stainless steel grade and is characterized by high yield
strength, double that of the standard austenitic stainless steel grades. It also demonstrates good fatigue strength, as well as outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion in severe environments.

APPLICATIONS:

  • Chemical processing, transport and storage – pressure vessels, tanks, piping, and heat exchangers
  • Oil and gas exploration and processing equipment – piping, tubing, and heat exchangers
  • Marine and other high chloride environments
  • Effluent scrubbing systems
  • Pulp and paper industry – digesters, bleaching equipment, and stock-handling systems
  • Cargo tanks for ships and trucks
  • Food processing equipment
  • Biofuels plants

 

Specification:

  • Thickness 5mm to 100mm
  • Product: Plate, Sheet, Coil
  • Size: 1000 X 2000, 1250 X 2500, 1500 X 3000, 2000 X 6000
Duplex Heat Treatment Solution treatment (annealing) - heat to 1020ºC-1100ºC and cool rapidly. This grade cannot be hardened by thermal treatment, but does work harden

WE EXPORT TO:Bahrain, Brazil, Chile, Egypt, India, Iran, Iraq, Kuwait, Lebanon, Middle East, Mexico, Nigeria, Oman, Saudi Arabia, South Africa, South America, Qatar, Russia, Turkey, United States, UAE, Venezuela, Yemen & around the globe.

 

 

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Duplex Steel Plate 2205

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We are providing Duplex Steel Plate 2205. Duplex Steel Plate 2205 is the most widely used duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades. It also demonstrates good fatigue strength, as well as outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion in severe environments.

CORROSION RESISTANCE:
  • Due to its high chromium, molybdenum, and nitrogen content, Duplex 2205 demonstrates superior corrosion resistant properties to 316 and 316L in most environments.
  • Chromium, molybdenum, and nitrogen content also provide high resistance to pitting and crevice corrosion, even in oxidizing and acidic solutions.
  • Resistant to chloride stress corrosion cracking and temperatures of up to about 302°F (150°C)
  • The presence of ferrite provides for good performance of Duplex 2205 in caustic environments
HEAT RESISTANCE:
  • Similar to other duplex stainless steels, Duplex 2205 has good oxidation resistance at high temperatures.
  • Subject to embrittlement when exposed to temperatures above 572°F (300°C) even when exposed for short periods of time; Duplex 2205 is therefore not recommended for use above 572°F (300°C)

WELDING CHARACTERISTICS:
  • Possesses good weldability
  • Should not generally be welded without filler metal as this may result in excessive ferrite
HEAT TREATMENT:
  • Annealing temperature range is 1868 to 2012°F (1020 to 1100°C)
  • Cannot be hardened by heat treatment – but Duplex 2205 does work-harden
  • Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion
Chemical Properties:


CMnSiPSCrMoNiN
22050.03210.030.02Min : 21.0Min : 2. 5Min : 4.5Min : 0.08

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Duplex Steel Plate 1.4462

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We are pioneers in manufacturing and exporting a wide range ofDuplex Steel Plate 1.4462 around the globe. The famous Duplex Steel Plate grade available with us are 1.4462, S 31803 and S 32205. These plates are manufactured using flaw-free high grade steels to maintain its international standards. This is free from rustiness which is highly durable. It is mostly used by the large industries for various applications.

S31803 / S32205 Properties Chemical Analysis (% max or range)

C

Mn

P

 

Si

Cr

Ni

Mo

N

0.03

2.00

0.03

0.02

1.00

21.0-23.0

4.5-6.5

2.5-3.5

0.08-0.20


 

Sizes
Duplex 1.4462 12 mm X 1250 X 3000
Duplex 1.4462 14 mm X 1250 X 3000
Duplex 1.4462 15 mm X 1250 X 3000
Duplex 1.4462 16 mm X 1250 X 3000
Duplex 1.4462 20 mm X 1250 X 3000
Duplex 1.4462 22 mm X 1250 X 3000
Duplex 1.4462 25 mm X 1250 X 3000
Duplex 1.4462 28 mm X 1250 X 3000
Duplex 1.4462 30 mm X 1250 X 3000
Duplex 1.4462 32 mm X 1250 X 3000
Duplex 1.4462 35 mm X 1250 X 3000
Duplex 1.4462 38 mm X 1250 X 3000
Duplex 1.4462 40 mm X 1250 X 3000
Duplex 1.4462 42 mm X 1250 X 3000
Duplex 1.4462 45 mm X 1250 X 3000
Duplex 1.4462 50 mm X 1250 X 3000
Duplex 1.4462 55 mm X 1250 X 3000
Duplex 1.4462 60 mm X 1250 X 3000
Duplex 1.4462 80 mm X 1250 X 3000



WE EXPORT TO:Bahrain, Brazil, Chile, Egypt, India, Iran, Iraq, Kuwait, Lebanon, Middle East, Mexico, Nigeria, Oman, Saudi Arabia, South Africa,South America, Qatar, Russia, Turkey, United States, UAE, Venezuela, Yemen & around the globe.
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32750 Super Duplex Stainless Steel

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32750 Super Duplex Stainless Steel
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We stocks super duplex stainless steel plates which are certified to material grades UNS S32750 and 1.4410. The steels are also compatible with the branded 2507 designation.All us stock is manufactured by Indian steel makers and fully certified in accordance with the relevant material specification. In addition the material is enhanced with further tests such as E562 micro structure analysis, and corrosion testing to G48 or A293 Method C.

UNS S32750 Properties Chemical Analysis (% max or range)

C

Mn

P

 

Si

Cr

Ni

Mo

N

0.03

1.20

0.035

0.02

0.80

24.0-26.0

6.0-8.0

3.0-5.0

0.24-0.32

S32750 Super Duplex steel plate

Thickness (mm)

Plate Sizes (mm)

5

12000 x 2000

 

 

6

12000 x 2000

12000 x 2500

 

8

12000 x 2000

12000 x 2500

12000 x 3000

10

12000 x 2000

12000 x 2500

12000 x 3000

12

12000 x 2000

12000 x 2500

12000 x 3000

15

12000 x 2000

12000 x 2500

12000 x 3000

20

12000 x 2000

 

12000 x 3000

25

8000 x 2000

 

6000 x 3000

30

6000 x 2000

 

6000 x 3000

35

4000 x 2000

 

6000 x 3000

40

4000 x 2000

 

6000 x 3000

45

4000 x 2000

 

6000 x 3000

50

4000 x 2000

 

6000 x 3000

WE EXPORT TO:Bahrain, Brazil, Chile, Egypt, India, Iran, Iraq, Kuwait, Lebanon, Middle East, Mexico, Nigeria, Oman, Saudi Arabia, South Africa, South America, Qatar, Russia, Turkey, United States, UAE, Venezuela, Yemen & around the globe.

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S32760 (1.4501) Super Duplex Steel Sheet

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S32760 (1.4501) Super Duplex Steel Sheet
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Super Duplex UNS S32760 | 1.4501

We stocks super duplex stainless steel plates which are certified to material grades UNS S32760 and 1.4501. The steels are also compatible with the branded Zeron 100 designation. E562 microstructure analysis, and corrosion testing to G48 or A293 Method C. In order to further ensure good corrosion resistance. All material is produced and certified in accordance with NORSOK MDS D55 with plates up to and including 35 mm thick certified to Revision 4. Mill test certificates are produced with third party inspection to EN 10204 UNS S32760 Properties Chemical Analysis (% max or range)

C

Mn

P

 

Si

Cr

Ni

Mo

N

0.03

1.00

0.03

0.01

1.00

24.0-26.0

6.0-8.0

3.0-4.0

0.20-0.30

S32760 Super Duplex steel

Thickness (mm)

Plate Sizes (mm)

5

12000 x 2000

 

 

6

12000 x 2000

12000 x 2500

 

8

12000 x 2000

12000 x 2500

12000 x 3000

10

12000 x 2000

12000 x 2500

12000 x 3000

12

12000 x 2000

12000 x 2500

12000 x 3000

15

12000 x 2000

12000 x 2500

12000 x 3000

20

12000 x 2000

 

12000 x 3000

25

8000 x 2000

 

6000 x 3000

30

6000 x 2000

 

6000 x 3000

35

4000 x 2000

 

6000 x 3000

40

4000 x 2000

 

6000 x 3000

45

4000 x 2000

 

6000 x 3000

 





WE EXPORT TO:Bahrain, Brazil, Chile, Egypt, India, Iran, Iraq, Kuwait, Lebanon, Middle East, Mexico, Nigeria, Oman, Saudi Arabia, South Africa, South America, Qatar, Russia, Turkey, United States, UAE, Venezuela, Yemen & around the globe.

We Are Looking Only Foreign Inquiry .
Yes! I am interested

 
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Harish Mehta (CEO)
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Mumbai - 400004, Maharashtra, India
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