UNS ASTM Duplex 2304 Stainless Steel Pipe Welded Bright Finish
Duplex 2304 is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel whose structure is a balance of ferritic and austenitic. It has general corrosion resistance similar or better than Alloys 304L and 316L but with yield strength nearly double that of austenitic stainless steels. Its duplex microstructure and low nickel and high chromium contents also allows Duplex 2304 to demonstrate improved stress corrosion resistant properties compared to 304 and 316. It is typically suitable for all applications in the -58oF to 572oF (-50oC to 300oC) temperature range and is designed to feature high mechanical strength, good weldability, good corrosion resistance, high resistance to stress corrosion cracking, good machinability, low thermal expansion, good fatigue properties, high thermal conductivity, and easy fabrication.
1. Products Details
WUXI XINFUTIAN inventory now includes Duplex 2304 (UNS S32304) in sheet, sheet coil, plate, round bar, processed flat bar and tubular products.
Composition
| | C | Cr | Fe | Mn | Si | S | P | Ni | Cu | N |
| Duplex 2304 | 0.03 max | min: 21.5 max:24.5 | Bal. | 2.5 max | 1.0 max | 0.03 max | 0.04 max | min:3.0 max:3.5 | min:0.05 max: 2.0 | min: 0.05 max: 2.0 |
Mechanical Properties
| Grade | Tensile Strength ksi (MPa) min | Yield Strength 0.2% offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
| Duplex 2304 | 87 (600) | 58 (400) | 25 | 293 | 31j |
2. Processing
Weldability
Can be successfully welded by TIG manual and automatic, PLASMA, MIG, SMAW, SAW, FCAW
Duplex microstructure renders the alloy less sensitive to hot cracking
Pre-heating and post welding is not required
Filler metal should be a balanced ferrite/austenitic type
Machinability
Exhibits improved machinability properties particularly when considering drilling
Low speeds and high feeds will minimize this alloys tendency to work harden
3. FAQ
1. Q: Could you support free sample?
A: Yes.We can supply free samples.But the delivery charges will be covered by our customers.
2. Q: How about the delivery time?
A: Within 15-20days after receiving the deposit or L/C at sight.
3. Q: How about the trade terms?
A: FOB,CIF will be accepted.
4. Q: How about your payment terms?
A: 30%TT in advance and the balance against of copy of B/L.
The irrevocable L/C at sight will be accepted.
5. Q: How many coutries you already exported ?
A: Exported to more than 20 countries mainly from America, Vietnam, UK, Thailand, Egypt, Iran, Turkey, Jordan, etc.
4. Applications
Duplex 2304 is generally used in the same applications in which Alloys 304 and 316L are used. Some examples of these applications include:
Chloride containing environments
Welded pipe systems within the Pulp and Paper, Chemical and Petrochemical, and Water Treatment industries
Transportations
Heat exchanger tubes
Architecture, building, construction
Pressure vessels
Caustic solutions, organic acids
Food industry
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Bright Finish Duplex 2304 Stainless Steel Pipe UNS ASTM Corrosion Resistantace Images
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