UNS S32750 Plates & Duplex Steel S32205 Sheet & Plates Supplier in India
Taashvi Special Alloys is a leading UNS S32750 Plates & Duplex Steel S32205 Sheet & Plates Supplier in India, offering durable, high-strength solutions for industries that demand corrosion resistance and mechanical reliability. With our extensive inventory and commitment to quality, we known as a trusted source for duplex stainless steel plates across India.
What is Duplex Stainless Steel?
Duplex stainless steels are a family of stainless alloys known for their dual-phase microstructure consisting of both austenitic and ferritic grains. This combination results in superior strength, excellent corrosion resistance, and high stress tolerance.
Key properties of duplex stainless steel:
- Higher yield strength compared to austenitic steels
- Excellent resistance to pitting, crevice, and stress corrosion cracking
- Lower nickel and molybdenum content, making it more cost-effective
Overview of UNS S32750 Plates
UNS S32750, also known as Super Duplex 2507, is a super duplex stainless steel with high chromium (25%), molybdenum (4%), and nitrogen content. It is ideal for demanding environments, such as offshore, marine, and chemical processing applications.
Key Features:
- High tensile and yield strength
- Excellent resistance to chloride stress corrosion cracking
- Good weldability and formability
- Excellent performance in seawater and aggressive chemicals
At Taashvi Special Alloys, we supply UNS S32750 plates that meet international standards and are available in various sizes and custom finishes.
Overview of Duplex Steel S32205 Sheet & Plates
UNS S32205, commercially known as Duplex 2205, is a widely used duplex stainless steel grade offering a balanced mix of corrosion resistance and mechanical strength. It contains around 22% chromium, 3% molybdenum, and 5-6% nickel.
Key Features:
- Twice the strength of standard austenitic stainless steels
- Excellent resistance to oxidation and corrosion
- Widely used in chemical tanks, structural piping, and pressure vessels
- Cost-efficient and versatile
Taashvi Special Alloys stocks Duplex Steel S32205 sheet & plates in multiple dimensions, surface finishes, and thicknesses to meet industry-specific demands.
UNS S32750 vs S32205: Key Differences
| Property | UNS S32750 (Super Duplex) | UNS S32205 (Duplex 2205) |
|---|---|---|
| Chromium | ~25% | ~22% |
| Molybdenum | ~4% | ~3% |
| Strength | Higher | High |
| Corrosion Resistance | Superior (especially chloride resistance) | Excellent |
| Applications | Offshore, marine, desalination | Chemical processing, pulp and paper |
| Cost | Slightly higher | Cost-effective |
Chemical Composition (Both Grades)
UNS S32750:
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 24.0–26.0 |
| Nickel (Ni) | 6.0–8.0 |
| Molybdenum (Mo) | 3.0–5.0 |
| Nitrogen (N) | 0.24–0.32 |
| Carbon (C) | ≤0.030 |
| Manganese (Mn) | ≤1.20 |
| Phosphorus (P) | ≤0.035 |
| Sulfur (S) | ≤0.020 |
| Silicon (Si) | ≤0.80 |
UNS S32205:
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 21.0–23.0 |
| Nickel (Ni) | 4.5–6.5 |
| Molybdenum (Mo) | 2.5–3.5 |
| Nitrogen (N) | 0.14–0.20 |
| Carbon (C) | ≤0.030 |
| Manganese (Mn) | ≤2.00 |
| Phosphorus (P) | ≤0.030 |
| Sulfur (S) | ≤0.020 |
| Silicon (Si) | ≤1.00 |
Mechanical Properties
| Property | S32750 | S32205 |
|---|---|---|
| Tensile Strength (MPa) | ≥800 | ≥620 |
| Yield Strength (0.2% MPa) | ≥550 | ≥450 |
| Elongation (%) | ≥15 | ≥25 |
| Hardness (Brinell) | ≤310 | ≤293 |
Available Types and Forms
We offer:
- Hot Rolled Plates
- Cold Rolled Sheets
- Cut-to-size Duplex Plates
- Plasma/Waterjet Cut Shapes
- Sheared Edges and Mill Edges
Surface Finishes & Edge Conditions
Available surface finishes:
- No.1 (Hot rolled, annealed, descaled)
- 2B (Cold rolled, annealed, pickled, skin passed)
- BA (Bright annealed)
- Satin/matte finish
Edge conditions:
- Mill Edge
- Slit Edge
Size Range and Thickness
At Taashvi Special Alloys, we stock a wide range of dimensions:
| Product | Thickness | Width | Length |
|---|---|---|---|
| Plates (S32750/S32205) | 3mm to 100mm | Up to 2500mm | Up to 6000mm or custom |
| Sheets (S32205) | 0.5mm to 6mm | 1000–1500mm | As per requirement |
Standard Specifications & Global Equivalents
| Standard | UNS S32750 | UNS S32205 |
|---|---|---|
| ASTM | A240, A276, A479 | A240, A789, A790 |
| EN | 1.4410 | 1.4462 |
| DIN | X2CrNiMoN25-7-4 | X2CrNiMoN22-5-3 |
| JIS | SUS 329J3L | SUS 329J4L |
Weight Chart of Duplex Steel Plates (Approx.)
| Thickness (mm) | Weight per m² (kg) |
|---|---|
| 3.0 | 23.55 |
| 5.0 | 39.25 |
| 10.0 | 78.50 |
| 20.0 | 157.00 |
| 50.0 | 392.50 |
*Density considered: 7.85 g/cm³
Industries and Applications
Our UNS S32750 Plates & Duplex Steel S32205 Sheet & Plates are used in:
- Oil & Gas: Pressure vessels, subsea equipment, pipelines
- Marine Industry: Shipbuilding, desalination plants
- Pulp & Paper: Digesters, bleach washers
- Chemical Industry: Reactors, tanks, piping
- Energy Sector: Heat exchangers, boiler components
- Pharmaceutical & Food Processing: Hygienic and corrosion-resistant applications
Why Choose Taashvi Special Alloys as Your Duplex Plate Supplier in India
At Taashvi Special Alloys, we stand out as a top UNS S32750 Plates & Duplex Steel S32205 Sheet & Plates Supplier in India due to:
- Wide Inventory: Ready-to-ship stock in varied sizes and grades
- Certified Quality: Compliant with ASTM, EN, JIS, and ISO standards
- Custom Cutting: Tailored lengths and shapes as per your need
- Competitive Pricing: Cost-effective solutions without compromising on quality
- Timely Delivery: Well-managed logistics to ensure on-time delivery across India
- Expert Support: Experienced team to help you choose the right grade and specification
