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Super Duplex UNS 32760

DataTime:[2014-6-23]

SPECIFICATIONS: GRADE Super Duplex | UNS S32760 | ASTM/ASME A240 / F53 | Werkstoff 1.4501

Our stock of Super Duplex 32760 can be supplied in sheet, plate, or bar forms, cut to specific requirements and comes with the Yaang quality certification.

The following are the properties of 32760 super duplex:

  • Ferritic-austenitic stainless steel.
  • Excellent corrosion resistance against general corrosion, stress corrosion cracking, corrosion fatigue, pitting, crevice and erosion corrosion and possessing very high mechanical strength properties.
  • Good weldability, post weld heat treatment not necessary.
  • Max. Temperature for long periods of service: 280°C (536°F) / (300°C/572°F possible for short periods).
  • Surface condition for optimum corrosion resistance: pickled or machined.

Application

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

Chemical Composition (average %)

C Si Mn Cr Mo Ni W Cu N PREN
0.020 0.25 0.55 25.20 3.70 7.00 0.65 0.60 0.22 Min. 40

Standards

UNS S32760

Hot Forming

Forging

1280 to 1000°C (2336-1832°F)
Air cooling

Heat Treatment

Quenching:

1100°C (2012°F)
Water , air (thickness below 2mm)

Structure as quenched:

1100°C (2012°F)
Water , air (thickness below 2mm)

Structure as quenched:

Ferrite + Austenite

Welding

Weldability of super duplex 32760 is good. The welding procedures are similar to those applied for conventional duplex grades. Welding consumables for different welding methods are available.

Machining

The machine ability of super duplex 32760 is superior to comparable super duplex grades due to its optimised inclusion characteristic. Further details are available on request.

Condition: quenched

Product Dimension
Size
mm
0.2% proof stress
N/mm2
min.
Tensile strength
N/mm2
min.
Elongation A5
% min.
L    Q     T
Impact strength
(ISO-V)
J min.
L    Q     T
St, Sch ≤250 550 750 25   - –    - - 70   - –    - -
Bl ≤ 75 - –   251)  - - - -   55    - -

St = Bar , Sch = Forging,
Bl = 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.

Condition: quenched

0.2% yield strength
N/mm² min.
Temperature
50°C (122°F) 100°C (212°F) 150°C (302°F) 200°C (392°F) 250°C (482°F) 300°C (572°F)
510 480 445 405 400

395

Physical Properties

Thermal conductivity at …………….. 20°C (68°F) …………..15.0 …………W/(m.K)
Specific heat at ………………………..20°C (68°F) …………..450 ………….J/(kg.K)
Electrical resistivity at ………………. 20°C (68°F) …………..0.80 …..Ohm.mm2/m
Modulus of elasticity at …………….. 20°C (68°F) …………..250 x 103 …N/mm2
Magnetic properties …………………………………………………magnetic

20°C und …°C, 10-6 m/(m.K) bei
Thermal expansion between
20°C (68°F) and …°C (°), 10-6 m/(m.K) at
Temperature 10-6 m/(m.K)
˚C ˚F
100°C 212°F 13.3
200°C 392°F 13.6
300°C 572°F 14.0
400°C 752°F 170
Modulus of elasticity, 103 N/mm2 at Temperature 103 N/mm2
˚C ˚F
20°C 66°F 205
100°C 212°F 200
200°C 392°F 195
300°C 572°F 180
400°C 752°F 170

As regards applications and processing steps that are not expressly mentioned in this product description/data sheet, the customer shall in each individual case be required to consult us.

Tel No:+86-18267732328 / Fax No :86-0577-56809281 / Email:sales@yaang.com
Address:Longwan District, Wenzhou, Zhejiang Province, China.

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