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Super Duplex Steel Sheet Plate Suppliers Stockist Manufacturers Exporters in Mumbai India

Super Duplex Plate Suppliers, Super Duplex Stainless Steel Sheet, Coil, Strips, Foils, ASTM A240 UNS S31803 Duplex Steel Plates Manufacturer, Super Duplex Steel Plates, Sheets & Coils


Super Duplex Steel Sheet Plate

Super Duplex Steel Sheet Plate

Duplex and Super Duplex Steel Plates & Sheets Supplier INDIA / Duplex & Super Duplex Stainless Steel Sheets, Plates & Coils / Duplex and Super Duplex Steel UNS S31803, S32205, S32750, S32760  Stockies,Suppliers & Exporters.

240 Stainless Steel DIN W. Nr. 1.4462 Duplex and Super Duplex Supplier

STANDARD UNS WERKSTOFF NR.
Duplex 2205 S31803 1.4462

Duplex & Super Duplex Steel Plates

Range : 
5 mm To 100 mm thick in 1000 mm TO 2500 mm width & 2500 mm to 12500 mm Length available with NACE MR 01-75.
Types : Sheet, Plates, Coils, Flat, Strips, Profile, Blank ,Circle, Ring etc. 

MATERIALS : Duplex & Super Duplex Steel Plates 
UNS S31803, S32205, S32750, S32760

Duplex & Super Duplex Steel Steel Sheets

Range : 
1 mm To 3 mm thick in 1000 mm TO 2500 mm width & 2500 mm to 12500 mm Length available with NACE MR 01-75.
Types : Sheet, Plates, Coils, Flat, Strips, Profile, Blank ,Circle, Ring etc. 

MATERIALS :
Duplex & Super Duplex Steel Steel Sheets 

UNS S31803, S32205, S32750, S32760

Duplex Sheets Plates
Super Duplex Sheets Plates
Duplex Sheets UNS S31803 Sheets Plates
Super Duplex UNS S32205 Sheets Plates
Duplex & Super Duplex UNS S32750 Sheets Plates

Super Duplex Corrosion Resistance

2507 Duplex is highly resistant to uniform corrosion by organic acids such as formic and acetic acid. It is alsohighly resistant to inorganic acids, especially if they contain chlorides.  Alloy 2507 is highly resistant to carbide-related intergranular corrosion.  Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice attack are improved.  Alloy 2507 has excellent localized pitting resistance. The high chromium and molybdenum content of Super Duplex makes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid. Super Duplex also provides excellent resistance to inorganic acids, especially those containing chlorides.

The pitting Resistance equivalent of Super Duplex, calculated by PREN = Cr + 3.3Mo + 16N, will exceed 40 in most material forms.

What are the characteristics of Duplex 2507?

  • High resistance to chloride stress corrosion cracking
  • High Strength
  • Superior resistance to chloride pitting and crevice corrosion
  • Good general corrosion resistance
  • Suggested for applications up to 600° F
  • Low rate of thermal expansion
  • Combination of properties given by austenitic and ferritic structure
  • Good weldability and workability

Stainless Steel Super Duplex and Duplex Grades

Super Duplex Stainless Steel – Alloy 2507 (UNS S32750 and UNS S32760) Specifications

  1. Super Duplex Plates, Sheet, Coil, and Strip: ASTM A240, ASME A 240
  2. Super Duplex Seamless Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790
  3. Super Duplex Welded Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790
  4. Super Duplex Bars, Rods, Wire: ASTM A 276 / 479, ASME SA 276 / 479
  5. Super Duplex Pipe Fittings & Flanges: ASTM A 815, ASME SA 815
  6. Super Duplex Forged Flanges: ASTM A182 Grade F55
  7. Super Duplex Forgings: ASTM A473

Stainless Steel Super Duplex Sheets/Plates

STAINLESS STEELTRADENAMEUNS NO.WERKSTOFF NO.DENSITY (G/CM3)
Super DuplexF55 / 2507, F53S32760 / S327501.4501 / 1.44107.805

Super Duplex : Chemical Composition, % of Super Duplex – S32760 Grade Stainless Steel


CRNIMOCWCU
24.0-26.06.0-8.03.0-4.00.030 Max0.5-1.00.50-1.0

NMNSIPSFE
0.2-0.31.00 Max1.0 Max0.03 Max0.01 MaxBalance

Super Duplex : Chemical Composition, % of Super Duplex – S32750 / 2507 Grade Stainless Steel

CRNIMOCNMN
24.0-26.06.0-8.03.0-5.00.030 Max.24-.321.20 Max
SiCuPSFe
0.80 Max0.50 Max0.035 Max0.020 MaxBalance

Super Duplex 2507 Stainless Steel (UNS S32750 and UNS S32760) Physical & Mechanical Properties

 SUPER DUPLEX STAINLESS STEEL
Super Duplex Density 7.805
Melting Range,℃1350 ℃
Elongation %15 min.
Tensile Strength (Mpa)800
Super Duplex Yield Strngth (Mpa) 550
Hardness (Brinell)270 max

Duplex Grades Duplex UNS ASTM/ASME Werkstoff
DuplexS31803A240 / F511.4462
Super DuplexS32750A240 / F551.4410
Super DuplexS32760A240 / F531.4501
Lean DuplexS32304A2401.4362
6 MolyS31254A240 / F441.4547

Duplex & Super Duplex Plate, Sheet and Bar Stock

Grade Sheet (mm) Plate (mm) Bar (mm) [Diameter]
UNS S318031.50 – 3.005.00 – 100.0076.20 – 457.20
UNS S323042.005.00 – 50.00-
UNS S327503.005.00 – 50.0012.70 – 304.80
UNS S32760-5.00 – 50.0012.70 – 304.80

Super Duplex Stainless Steel Material Products

UNS S32750 & UNS S32760

Super Duplex Plate/Sheet
Super Duplex Seamless & Welded Tube
Super Duplex Seamless & Welded Pipe
Super Duplex Round Bar
Super Duplex Flanges F53/F55
Super Duplex Specialty Forgings
Super Duplex Seamless & Welded BW Fittings

Trade NameUNSSuper Duplex Industry SpecificationsChemical CompositionMin.Tensile
(KSI)
Min.Yield 
(KSI)
Elongation 
%
SAF 2507®
UNS S32750
ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988
SAE J405
C 0.030 max 
Cr
 24.0-26.0
Cu 0.5 max
Mn 1.20 max
Mo 3.0-5.0
N 0.24-0.32
Ni 6.0-8.0
P 0.035 max
S 0.020 max
Si 0.8 max
1168015

UNS S32760ASTM A182 F55, A240, A276, A314, A473, A479, A789, A790, A815, A928, A988
SAE J405
C 0.03 max 
Cr
 24.0-26.0
Cu 0.5-1.0
Mn 1.0 max
Mo 3.0-4.0
N 0.2-0.3
Ni 6.0-8.0
P 0.03 max
S 0.01 max
Si 1.0 max
W 0.5-1.0
 1098025

This is a Duplex alloy stainless steel designed to feature high strength, resistance to pitting, stress corrosion cracking, erosion corrosion and corrosion fatigue, crevice corrosion and strong weldability.

Super Duplex Applications

Oil and gas industry equipment,
Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems,
Chemical process industries, heat exchangers, vessels, and piping,
Desalination plants, high pressure RO-plants and seawater piping,
Mechanical and structural components, high strength, corrosion-resistant parts,
Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping.

Super Duplex ASTM Grades - Specifications

Super Duplex Pipe Seamless

Super Duplex Pipe Welded

Super Duplex Tube Seamless

Super Duplex Tube Welded

Super Duplex Sheet/Plate

Super Duplex Bar

Super Duplex Flanges & Fittings

Astm A790

Astm A790

Astm A789

Astm A789

Astm A240

Astm A276

Astm A182

Mechanical Properties
Specified Tensile Properties, Plate ASTM A240

Super Duplex Ultimate Tensile Strength, ksi Minimum

.2% Super Duplex Yield Strength, ksi Minimum

% Elongation Min.

 

116

80

15

310

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 Physical Properties (Room Temperature)

Super Duplex Specific Heat (0-100°C) 500 J.kg-1.°K-1
Super Duplex Thermal Conductivity 15 W.m -1.°K-1
Super Duplex Thermal Expansion 11 μm/μm/°C
Super Duplex Modulus Elasticity 200 GPa
Super Duplex Electrical Resistivity 8.12 μohm/cm
Super Duplex Density 7.8 g/cm3

HEAT TREATMENT

super duplex heat treatment :

The various heat treatment processes are annealing, normalizing, hardening, tempering, spheroidising, surface hardening, flame and induction hardening, nitriding, cyaniding, carbonitriding, carburizing etc Heat treatment on duplex stainless steel is to improve ductility, toughness, strength, hardness and to relieve internal stress developed in the material. Here basically the experiment of hardness test, impact test, wear test and compression is done to get idea about heat treated duplex stainless steel, which has extensive uses in all industries and scientific research and development fields.

Super Duplex Annealing

The duplex stainless steel material was heated to 900° c and is kept at this temperature for soaking for 3 different timings. The soaking conditions was varied from 30minutes, 45minutes, and 60minutes. The material after heating was made to cool very slowly. The cooling of the material after heating was done by placing the material in the sand which is a very slow cooling process.

Super Duplex Normalizing

The duplex stainless steel material was heated to 1100°c and is kept at this temperature for soaking for 3 different timings. The soaking conditions was varied from 30minutes, 45minutes, and 60minutes. The material after heating was made to cool slowly. The cooling of the material after heating was done by placing the material in open air

Super Duplex Tempering

The duplex stainless steel material was heated to 900° c and is kept at this temperature for soaking for 3 different timings. The soaking conditions was varied from 30minutes, 45minutes, and 60minutes. The specimens after taking from oven was made to cool slowly. The cooling of the material after heating was done by placing the material in open air.

Super Duplex Hardening

The duplex stainless steel material was heated to 1100° c and is kept at this temperature for soaking for 3 different timings. The soaking was varied from 30minutes, 45minutes, and 60minutes. The material after heating was cooled very fast . The material after heating was cooled by oil cooling. The oil used for cooling is SAE 20-40 oil which is used mostly for automobiles.