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Super Duplex Flat Bar

Super duplex flat bar specifications

What are the advantages of using Super Duplex Flat Bars in offshore and marine applications?

Fabulous resistance to general corrosion and stress corrosion cracking sets these products apart. A super duplex flat bar performs satisfactorily in offshore and marine environments due to its inherent resistance to abrasive agents like acids, chloride ions, and alkalis. It also works in water desalination, chemical processing, and sour services.

Popular grades include a UNS S32750 flat bar and 2760 material. The metallurgical properties are similar, but the latter has more copper and tungsten. Using a UNS S32760 flat bar offers stellar advantages:

  • High PREN (pitting resistance equivalent number) of over 40
  • Good yield and tensile strength  (over 770 MPa)
  • Tolerates extreme temperatures up to 300°C

SDSS 1.4410 hot rolled flat bars have decent weldability. However, careful monitoring and matched filler materials are required to avoid the formation of deleterious intermetallic phases.

UNS S32760 flat bar supplier in India


Specification of super duplex flat bar

Specifications Size Finish
ASTM A276, A479 / ASME SA276, SA479 10 mm - 100 mm Dia Bright, polish, black
Standards Length Tolerance
EN, JIS, DIN, BS, ASTM, AISI, ASME 100 mm - 6000 mm, custom sizes available H9-H11, K9-K11
Technique Processing service Application 
Cold rolled, hot rolled Welding, bending, cutting
  • Petrochemical
  • Construction
  • Shipbuilding
  • Food processing
  • Chemical fertilizer

Searching for a DIN 1.4410 flat bar? we are super duplex 2507 flat bar manufacturer in India

Which factors that affect the strength and durability of Super Duplex Flat Bars?

These bars operate in demanding conditions, from turbine engines to heat exchangers, facing high temperatures and loads. The performance of a super duplex 2507 flat bar largely depends on the environment in which it operates, making application-appropriate selection critical. Prolonged exposure to excessive temperature (over 150-300°C) and loads can impact its strength.

Other factors that may impact ASME SA 276 S32760 flat bars include:

  • Quality of the raw materials used in the production
  • Thermal treatments
  • Factors that affect the cooling rate, such as thickness
  • Regular maintenance

Types of SDSS 2507 flat bar


Super Duplex 2507 Flat Bar

Super Duplex 2507 Flat Bar

DIN 1.4410 Drilled Flat Bar

DIN 1.4410 flat bar

UNS S32750 flat bar

UNS S32750 flat bar

UNS S32760 flat bar

UNS S32760 flat bar

Buy ASTM A276 UNS S32760 flat bar from manifest alloys in india at the factory price

What is liquid penetrant testing? How is it used to detect surface defects in Super Duplex Flat Bars?

This non-destructive approach can detect flaws like cracks, porosity, etc., in a zeron 100 UNS S32760 flat bar through capillary forces.

The primary steps are the application of a penetrant liquid (usually red or fluorescent), followed by removal, surface inspection, and post-inspection cleaning. Degreasing and anti-corrosion agents may be necessary for a thorough cleanup.

Liquid penetrant testing is one of several NDT approaches to diagnose leaks, fractures, and fatigue cracks in an ASTM A276 UNS S32760 flat bar.

Chemical composition of UNS S32760 flat bar


Grade C N P Si Mn Mo Ni Cr S Other
S32750/S32760 0.030 0.24/0.32 0.035 0.80 1.20 3.0/5.0 6.00/8.00 24.0/26.0 0.020 Cu:0.50
Check our inventory of SDSS 1.4410 hot rolled flat bars, contact us to know more about chemical and mechanical properties

Mechanical properties of DIN 1.4410 flat bar


Grade Density Melting point Yield strength(0.2% offset) Tensile strength Elongation
S32750/S32760 7.8g/cm3 1350°C(2460°F) PSi-80000, MPa-550 PSi-116000, MPa-800 15%
To view the range of sizes we offer for ASME SA 276 S32760 flat bars, check our specification tables

Equivalent grade of UNS S32750 flat bar


STANDARD WERKSTOFF NR. UNS
Super duplex 1.4410 S32750/S32760

Resistivity of super duplex flat bar


μΩm Temperature (°C) μΩin. Temperature(°F)
0.89 100 34.9 200
0.83 20 32.7 68
0.96 200 37.9 400
1.08 400 43.2 800
1.03 300 40.7 600

Tolerance of ASTM A276 UNS S32760 flat bar


Tolerance (mm) Diameter (mm)
+0 / -0.100 31 to 50
+0 / -0.084 18 to 30
+0 / -0.120 51 to 79

Size chart of super duplex 2507 flat bar


SDSS UNS S32750 flat bar sizes ( mm) SDSS 1.4410 hot rolled flat bars thickness (mm) UNS S32760 flat bar size (inch) Super duplex 2507 flat bar Thickness (in Inches)
25 5 to 20 1 3/16 – 4/5
22 17 & 18 7/8 2/3 – 5/7
30 5 to 20 1-3/16 3/16 – 4/5
35 5 to 20 1-3/8 3/16 – 3/16
47 17,25 & 32 1-6/7 2/3, 1 & 1-1/4
32 6 to 20 1-1/4 1/4 – 4/5
40 5 to 25 1-4/7 3/16 – 1
50 5 to 32 2 3/16 – 1-1/4
55 5 to 25 2-1/16 3/16 – 1
57 32 2-1/4 1-1/4
45 5 to 25 1-7/9 3/16 – 1
60 5 to 35 2-3/8 3/16 – 1-3/8
75 8 to 25 3 5/16 – 1
63 10 to 30 2-1/2 3/8 – 1-3/16
80 8 to 20 3-1/8 5/16 – 4/5
65 10 to 30 & 35 2-5/9 3/8 – 1-3/16, & 1-3/8
70 6 to 25 & 40 2-3/4 1/4 – 1, & 1-4/7
100 8, 10, 12 4 5/16, 3/8, 1/2
90 8 to 20 3-1/2 5/16- 4/5

Applications of DIN 1.4410 flat bar


  • Oil and gas industries
  • Food processing industries
  • Pipeline equipment
  • Power industries
  • Ship building industries
  • Paper Industries
  • Cement industries
  • Chemical industries