EN 1.4410, ASTM UNS S32750 Stainless Steel

EN 1.4410, ASTM UNS S32750 Stainless Steel

EN 1.4410, ASTM UNS S32750 Stainless Steel General Characteristics 2507 is a super duplex product with higher corrosion resistance and mechanical strength than 2205. Often used in extremely corrosive environments such as desalination, chemical, or offshore subsea applications. Typical...
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EN 1.4410, ASTM UNS S32750 Stainless Steel

General Characteristics

2507 is a super duplex product with higher corrosion resistance and mechanical strength than 2205. Often used in extremely corrosive environments such as desalination, chemical, or offshore subsea applications.


Typical Applications

  • Desalination plants

  • Industrial piping

  • Scrubbers

  • Tubes for oil and gas applications

  • Deep-sea pipelines

  • Flanges and valves


Chemical Composition

The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.


The chemical composition is given as % by mass.


CMnCrNiMoN

Typical

0.02


25.0

7.0

4.0

0.27

ASME II A SA-240

≤0.030

≤1.20

24.0-26.0

6.00-8.00

3.00-5.00

0.24-0.32

ASTM A240

≤0.030

≤1.20

24.0-26.0

6.0-8.0

3.0-5.0

0.24-0.32

EN 10028-7

≤0.030

≤2.00

24.00-26.00

6.00-8.00

3.00-4.50

0.20-0.35

EN 10088-2

≤0.030

≤2.00

24.0-26.0

6.0-8.0

3.0-4.5

0.24-0.35

EN 10088-3

≤0.030

≤2.00

24.0-26.0

6.0-8.0

3.0-4.5

0.24-0.35

EN 10088-4

≤0.030

≤2.00

24.0-26.0

6.0-8.0

3.0-4.5

0.24-0.35

IS 6911

≤0.030

≤1.20

24.0-26.0

6.0-8.0

3.0-5.0

0.24-0.32


Mechanical Properties

The duplex stainless steels have much higher mechanical strength compared to standard stainless steels. If the high strength of the duplex grades can be utilized, downgauging can be done in many applications, leading to cost-efficient solutions. The allowable design values may vary between product forms. The appropriate values are given in the relevant specifications.


StandardRp0.2Rp1.0RmElongationRockwellHB

MPa

MPa

MPa

%



Product type: Cold rolled coil and sheet

Typical (thickness 1 mm)

730

790

940

40



ASME II A SA-240

≥ 550


≥ 795



≤ 310

ASTM A240

≥ 550


≥ 795


≤ 32HRC

≤ 310

EN 10028-7

≥ 550


750-1000

≥ 20



EN 10088-2

≥ 550


750-1000

≥ 20



EN 10088-4

≥ 550


750-1000

≥ 20



IS 6911

≥ 550


≥ 795


≤ 32HRC

≤ 310

Product type: Hot rolled coil and sheet

Typical (thickness 4 mm)

700

785

905

30


270

ASME II A SA-240

≥ 550


≥ 795



≤ 310

ASTM A240

≥ 550


≥ 795



≤ 310

EN 10028-7

≥ 550


750-1000

≥ 20



EN 10088-2

≥ 550


750-1000

≥ 20



EN 10088-4

≥ 550


750-1000

≥ 20



IS 6911

≥ 550


≥ 795


≤ 32HRC

≤ 310

Product type: Hot rolled quarto plate

Typical (thickness 15 mm)

580


830

35


250

ASME II A SA-240

≥ 550


≥ 795


≤ 32HRC

≤ 310

ASTM A240

≥ 550


≥ 795


≤ 32HRC

≤ 310

EN 10028-7

≥ 530


730-930

≥ 20



EN 10088-2

≥ 530


730-930

≥ 20



EN 10088-4

≥ 530


730-930

≥ 20



IS 6911

≥ 550


≥ 795


≤ 32HRC

≤ 310


Physical Properties

The physical properties at room temperature are shown in the table below. Data according to EN 10088 or EN 10095.

DensityModulus of elasticityThermal exp. at 100 °CThermal conductivity

kg/dm3

GPa

10-6/°C

W/m°C

7.8

200

13

15


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