Kanakratna Steelage Private Limited
Mumbai, Maharashtra
GST No. 27AAECK9442R1ZP
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Duplex Steel Products
Astm A276 Uns S32750
Minimum Order Quantity: 100 Kg
Product Brochure
| Thickness | 2 -100mm |
| Steel Grade | ASTM A240 |
| Size/Diameter | 3 inches |
| Material | ASTM A276 |
| Surface Treatment | Hot Rolled Pickled, Bright, Sand Blasting Finished, Cold Drawn, Hairline,Polished |
| Type | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Length | 100 to 6000mm Length |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Grade | Astm A276 Uns S32750 |
ASTM A276 UNS S32750 covers super duplex stainless steel bars and shapes (hot- or cold-finished). UNS S32750, often marketed as Super Duplex 2507, is a super duplex stainless steel alloy developed to provide excellent resistance to chloride stress corrosion cracking, pitting, and crevice corrosion, while maintaining high strength and toughness.
Compared to conventional austenitic grades such as 304L and 316L, Super Duplex UNS S32750 offers:
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Twice the strength
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Improved resistance to localized corrosion
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Excellent resistance to chloride-induced cracking
This makes it a preferred choice for seawater handling systems, offshore platforms, desalination plants, chemical processing, pulp & paper industry, and high-pressure equipment.
Chemical CompositionSuper Duplex UNS S32750 combines austenitic and ferritic stainless steel microstructures, offering both corrosion resistance and strength.
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Nitrogen (N) | 0.24 – 0.32 |
| Manganese (Mn) | ≤ 1.2 |
| Silicon (Si) | ≤ 0.8 |
| Carbon (C) | ≤ 0.03 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.020 |
| Iron (Fe) | Balance |
| Property | Value |
|---|---|
| Density | 7.8 g/cm³ |
| Melting Range | 1350 – 1400 °C |
| Thermal Conductivity | 14.2 W/m·K at 20°C |
| Specific Heat Capacity | 500 J/kg·K |
| Electrical Resistivity | 85 μΩ·cm |
| Modulus of Elasticity | 200 GPa |
| Magnetic Properties | Slightly magnetic (due to ferrite phase) |
| Property | Typical Value |
|---|---|
| Tensile Strength | 800 MPa min |
| Yield Strength (0.2% offset) | 550 MPa min |
| Elongation | 15% min |
| Hardness (Brinell HBW) | ≤ 310 |
| Impact Toughness | > 27 J at -50°C |
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Solution Annealing: 1020 – 1100 °C, followed by rapid cooling in water.
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Stress Relieving: Not recommended, as it may impair corrosion resistance.
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Hardening: Cannot be hardened by heat treatment; only by cold working.
Additional Information:
- Production Capacity: IN TONS
- Delivery Time: READY STOCK
- Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes
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