EN 1.4362, ASTM UNS S32304 Stainless Steel

EN 1.4362, ASTM UNS S32304 Stainless Steel

EN 1.4362, ASTM UNS S32304 Stainless Steel General Characteristics Duplex grade with good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength. Used in e.g. offshore topside applications since more than 20 years. The grade is also available...
Chat Now

Product Details

EN 1.4362, ASTM UNS S32304 Stainless Steel

General Characteristics

Duplex grade with good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength. Used in e.g. offshore topside applications since more than 20 years.


The grade is also available as 2304 with enhanced corrosion resistance and strength, but still within the same EN/ASTM standards as 2304. 


Typical Applications

  • Desalination plants

  • Firewalls and blast walls on offshore platforms

  • Bridges

  • Components for structural design

  • Storage tanks

  • Pressure vessels

  • Heat exchangers

  • Water heaters

  • Rotors, impellers and shafts


Chemical Composition

The typical chemical composition for this grade is given in the table below, together with composition limits given for this grade according to different standards. The required standard will be fully met as specified on the order. The relatively low Ni and Mo content of 2304 and 2304 makes these grades more price stable compared to common standard stainless steel grades.


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.


C

MnCrNiMoNOther

Typical

0.02

23.0

4.8

0.3

0.10

Cu:0.30

ASME II A SA-240

≤0.030

≤2.50

21.5-24.5

3.00-5.50

0.05-0.60

0.05-0.20

Cu:0.05-0.60

ASTM A240

≤0.030

≤2.50

21.5-24.5

3.0-5.5

0.05-0.60

0.05-0.20

Cu:0.05-0.60

EN 10028-7

≤0.030

≤2.00

22.0-24.0

3.5-5.5

0.10-0.60

0.05-0.20

Cu:0.10-0.60

EN 10088-2

≤0.030

≤2.00

22.0-24.5

3.5-5.5

0.10-0.60

0.05-0.20

Cu:0.10-0.60

EN 10088-3

≤0.030

≤2.00

22.0-24.0

3.5-5.5

0.10-0.60

0.05-0.20

Cu:0.10-0.60

EN 10088-4

≤0.030

≤2.00

22.0-24.0

3.5-5.5

0.10-0.60

0.05-0.20

Cu:0.10-0.60

IS 6911

≤0.030

≤2.50

21.5-24.5

3.0-5.5

0.05-0.60

0.05-0.20

Cu:0.05-0.60


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 utilised, down gauging 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. The product types P= hot rolled plate, H=hot rolled strip and C=cold rolled coil and strip.


StandardRp0.2Rp1.0RmElongationRockwellHB

MPa

MPa

MPa

%



Product type: Cold rolled coil and sheet

Typical (thickness 1 mm)

620

660

790

42



ASME II A SA-240

≥ 400


≥ 600



≤ 290

ASTM A240

≥ 400


≥ 600


≤ 32HRC

≤ 290

EN 10028-7

≥ 420


600-850

≥ 20



EN 10088-2

≥ 450


650-850

≥ 20



EN 10088-4

≥ 450


650-850

≥ 20



IS 6911

≥ 400


≥ 600


≤ 32HRC

≤ 290

Product type: Hot rolled coil and sheet

Typical (thickness 4 mm)

600

670

765

30


235

ASME II A SA-240

≥ 400


≥ 600



≤ 290

ASTM A240

≥ 400


≥ 600



≤ 290

EN 10028-7

≥ 420


600-850

≥ 20



EN 10088-2

≥ 420


650-850

≥ 20



EN 10088-4

≥ 420


650-850

≥ 20



IS 6911

≥ 400


≥ 600


≤ 32HRC

≤ 290

Product type: Hot rolled quarto plate

Typical (thickness 15 mm)

450


670

40


210

ASME II A SA-240

≥ 400


≥ 600


≤ 32HRC

≤ 290

ASTM A240

≥ 400


≥ 600


≤ 32HRC

≤ 290

EN 10028-7

≥ 400


630-800

≥ 25



EN 10088-2

≥ 400


630-800

≥ 25



EN 10088-4

≥ 400


630-800

≥ 25



IS 6911

≥ 400


≥ 600


≤ 32HRC

≤ 290


Physical Properties

The physical properties at room temperature are shown in the table below. Data according to EN10088 or EN10095.

DensityModulus of elasticityThermal exp. at 100 °CThermal conductivityThermal capacityElectrical resistanceMagnetizable

kg/dm3

GPa

10-6/°C

W/m°C

J/kg°C

µΩm


7.8

200

13

15

500

0.8

Yes


Hot Tags: en 1.4362, astm uns s32304 stainless steel, China, manufacturers, suppliers, distributor, factory, buy, price

Inquiry

You Might Also Like