EDX 2304 Square Tube

Alternative and trade names
EDX 2304, ALLOY 1.4362, LEAN DUPLEX UNS S32304
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Description

EDX 2304 according to MDS D35 has an improved balanced chemistry of chromium, molybdenum and nitrogen. Increased mechanical strength compared to the standard UNS 32304. EDX 2304 outruns both 1.4404 and 1.4436 with respect to pitting corrosion resistance. Due to risk of embrittlement, duplex steels should not be used at temperatures above 250 – 325°C.

Related Standards

Equivalent Materials

This material data has been provided by Sverdrup Steel.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

Dimension

PropertyValue

Thickness

4 - 8 mm

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Width

60 - 250 mm

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Mechanical

PropertyTemperatureValueComment

Charpy impact energy, V-notch

-46.0 °C

45 J

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Elongation

23.0 °C

25 %

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Hardness, Brinell

23.0 °C

290 [-]

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Tensile strength

23.0 °C

630 MPa

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Yield strength Rp0.2

23.0 °C

500 MPa

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T<13MM

Chemical properties

PropertyValue

Carbon

0.03 %

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Chromium

22 - 24 %

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Copper

0.1 - 0.6 %

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Iron

Balance

Manganese

2 %

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Molybdenum

0.1 - 0.6 %

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Nickel

3.5 - 5.5 %

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Nitrogen

0.05 - 0.2 %

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Other

B: 35 PPM

Phosphorus

0.04 %

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Silicon

1 %

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Sulfur

0.015 %

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Technological properties

Property
Application areas

The main applications are for details with special requirements for high corrosion resistance.

Corrosion properties

Good resistance to stress corrosion cracking, Good resistance to pitting and crevice corrosion, High resistance to general corrosion, High resistance to erosion corrosion and corrosion fatigue. PREN ≥ 28

Heat Treatment

Solution annealing at 1020 – 1100°C followed by water quenching

Welding

Very good