What is 2304 Duplex Stainless Steel Plate?
2304 duplex stainless steel plate is a low-alloyed duplex stainless steel., and its internal structure is roughly equal to austenite and ferrite, and its structure has reached a good balance. The starting point of this material is clear: the strength of this material is much higher than that of ordinary austenitic stainless steels 304 and 316L, and it has to maintain good corrosion resistance in an environment containing chloride ions. Compared with the traditional dual-phase steel 2205, the content of nickel and molybdenum in 2304 is lower, so the cost is more cost-effective. It is especially suitable for those occasions that do not need extreme corrosion resistance, but require higher mechanical strength. To put it bluntly, it is to find a very practical balance between performance and price.
Product Details
Key Material Properties
| Item | Description |
| Product Name | 2304 Duplex Stainless Steel Plate (UNS S32304 / EN 1.4362) |
| Material Type | Lean Duplex Stainless Steel (Low-Alloyed Duplex) |
| Applicable Standards | ASTM A240 / ASME SA-240 / EN 10088-2 |
| Thickness Range | 3 mm – 100 mm |
| Width Range | Up to 2500 mm |
| Length Range | Up to 12000 mm |
| Surface Condition | No.1 (Hot rolled, annealed & pickled) / 2B (Cold rolled, bright) / Pickled |
| Packing Method | Standard export seaworthy packing (VCI paper interleaved + steel strapping + wooden pallet or steel frame support) |
| Typical Delivery Condition | Solution annealed + pickled / blasted |
Mechanical Properties
| Property | Typical Value / Range |
| Yield Strength (Rp0.2) | ≥ 400 MPa |
| Tensile Strength (Rm) | 600 – 800 MPa |
| Elongation (A50) | ≥ 25% |
| Hardness (Brinell/Rockwell) | ≤ 260 HB / ≤ 28 HRC |
| Impact Toughness (Room temp., longitudinal) | ≥ 100 J |
Chemical Composition (Typical Range, wt.%)
| Element | C | Cr | Ni | Mo | Mn | N | P | S |
| Content (%) | ≤ 0.03 | 21.5 – 24.5 | 3.5 – 5.5 | ≤ 0.6 | ≤ 2.5 | 0.05 – 0.20 | ≤ 0.04 | ≤ 0.015 |
Why Choose 2304 Instead of 316L or 2205?
| Property | 2304 Duplex | 316L | 2205 Duplex |
|---|---|---|---|
| Strength | High | Low | Very High |
| Corrosion Resistance | Medium–High | Medium | High |
| Cost | Medium | Medium–High | High |
Key takeaway:
2304 sits in the "middle zone" - offering a better balance between cost and performance for many industrial projects.
Where is 2304 Duplex Plate Used?
Our Advantages
Stable Supply with Flexible Sourcing
We maintain long-term cooperation with multiple duplex stainless steel mills, which allows us to secure stable production capacity even during peak demand periods.In practice, this means we can support both small trial orders and large-volume project supply without long delays.
Fast Response for Custom Requirements
We regularly handle non-standard requirements such as:
- Custom cut-to-length plates
- Special surface conditions
- Project-based quantity allocation
Most technical inquiries can be responded to within 12–24 hours, including feasibility and lead time.
Strict Dimensional and Flatness Control
For many downstream applications such as laser cutting or fabrication, plate flatness and tolerance are more critical than basic mechanical properties.
- Thickness tolerance: strictly controlled based on ASTM/EN standards
- Flatness: suitable for CNC cutting and precision fabrication
From our experience, controlling flatness at the source helps customers reduce secondary processing costs.
Our Strength
Jiangsu Cunrui Metal Products Co., Ltd. is a China supplier specializing in stainless steel and special alloys. According to our supply experience, many overseas buyers pay more attention to consistency-smoothness of laser cutting, surface conditions to reduce rework and reliable documents for project approval. We pay special attention to the flatness and surface quality of the board before shipment, because these factors directly affect the processing efficiency of our customers.
Over the years, our company has accumulated experience in exporting to different markets and handling documents, packaging and inspection requirements according to destination standards. Whether it's third-party inspection, factory testing and certification, or export packaging for long-distance shipping, our goal is to make it simple and clear for buyers who are not familiar with China procurement.
In fact, our role is not only to supply materials, but to reduce the uncertainty in the procurement process and ensure that the plates you receive meet your application, processing methods and project progress.
FAQ
Q1: Can you provide samples?
A1: Yes, samples with MTC can be provided, usually within 3–7 days.
Q2: What payment terms do you accept?
A2: T/T and L/C at sight are accepted; standard terms are 30% deposit + 70% before shipment.
Q3: What trade terms do you support?
A3: FOB, CFR, and CIF are all available depending on your shipping preference.
Q4: How is the packaging handled?
A4: Export-standard packaging with waterproof wrapping, steel protection, and wooden pallets or cases.
Q5: Do you support custom sizes?
A5: Yes, thickness, width, length, and cut-to-size plates can all be customized based on your drawings or requirements.
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