2304 Duplex Stainless Steel Sheet

2304 Duplex Stainless Steel is a low-alloyed duplex stainless steel known for its balanced properties of strength and corrosion resistance. It is often used as a cost-effective alternative to higher alloyed duplex steels while still offering significant advantages in various applications.2304 Duplex Stainless Steel Sheet offers a practical and cost-effective solution for a range of applications where a balance of strength and corrosion resistance is required. 

 

 

C	Mn	Si	P	S	Cr	Cu	Ni	N
0.03	2.5	1.0	0.04	0.03	21.5 -24.5	0.05-2.0	3.0-3.5	0.05-2.0

 

 

Tensile Strength ksi (min)	Yield Strength 0.2% ksi (min)	Elongation %	Hardness (HB) MAX
87	58	25	293

 

 

Density at 68°F (20°C)	0.28 lbm/in3 7800 kg/cm3
Coefficient of Thermal Expansion	ax10-6°C-1
68°F to: 212°F (20 -100°C)	13
68°F to 392°F (20 -200°C)	13.5
68°F to 572°F (20 -300°C)	14
Thermal Conductivity	W.m-1.K-1
at 68°F (20°C)	17
at 212°F (100°C)	18
at 392°F (200°C)	19
at 572°F (300°C)	20
Electrical Resitivity	(μ_ cm)
at 68°F (20°C)	80
at 212°F (100°C)	92
at 392°F (200°C)	100
at 572°F (300°C)	105
Specific Heat	(Btu/lb/°F)
32°F to: 212°F (20 -100°C)	0.11

 

Corrosion Resistance:

Good Resistance: Provides resistance to general corrosion, pitting, and crevice corrosion. Not as resistant as higher alloyed duplex grades but still performs well in many environments.

Applications: Suitable for less aggressive environments compared to 2205 or 2507 duplex grades.

Mechanical Properties:

High Strength: Offers higher tensile and yield strength compared to standard austenitic stainless steels like 304 and 316.

Applications: Ideal for structural applications requiring good strength and reduced weight.

Duplex Structure:

Balanced Microstructure: Combines approximately equal amounts of austenite and ferrite, which provides a good balance of strength and toughness.

Advantages: Offers better resistance to stress corrosion cracking compared to austenitic grades.

Weldability:

Moderate Weldability: Can be welded using standard methods, though control of heat input is essential to avoid issues like phase imbalance.

Considerations: Proper welding techniques and pre-heat/post-weld treatments may be required for optimal performance.

 

 

ASTM/ASME: UNS S32304
EURONORM: FeMi35Cr20Cu4Mo2
DIN: 2.4660

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