Kanakratna Steelage Private Limited
Mumbai, Maharashtra
GST No. 27AAECK9442R1ZP
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Bars
Astm A276 Uns S32760
Minimum Order Quantity: 100 Kg
Product Brochure
| Material | Chromium Molybdenum Alloy |
| Size | 6 mm to 120 mm |
| Fastener Type | Hex Bolts, nut, studs, threaded rod, screws, washer, socket head cap screw |
| Grade | ASTM A276 UNS 32760 |
| Packaging Type | IN BULK: pallet, canton, carton / Small Boxes / pallet or customer request |
| Length | 3 mm - 200 mm |
ASTM A276 UNS S32760 is a super duplex stainless steel bar known for its exceptional combination of strength, toughness, and corrosion resistance. It is part of the Zeron 100 family and is widely used in offshore, chemical, oil & gas, marine, and desalination industries.
S32760 stainless steel bars feature a dual-phase microstructure consisting of approximately 50% austenite and 50% ferrite, giving them an optimum balance of toughness and strength. Compared to standard duplex and austenitic stainless steels, S32760 bars offer superior resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich environments.
Chemical CompositionThe chemical composition of ASTM A276 UNS S32760 (weight %) is:
| Element | % Composition | Role in Alloy |
|---|---|---|
| Chromium (Cr) | 24–26 | Oxidation resistance and pitting resistance |
| Nickel (Ni) | 6–8 | Toughness and corrosion resistance |
| Molybdenum (Mo) | 3–4 | Pitting and crevice corrosion resistance |
| Copper (Cu) | 0.5–1.0 | Enhances corrosion resistance in acids |
| Tungsten (W) | 0.5–1.0 | High-temperature stability and corrosion resistance |
| Nitrogen (N) | 0.2–0.3 | Strengthening and pitting resistance |
| Manganese (Mn) | ≤1.0 | Improves hot workability |
| Silicon (Si) | ≤1.0 | Deoxidizer and strength |
| Carbon (C) | ≤0.03 | Minimizes carbide precipitation |
| Phosphorus (P) | ≤0.03 | Reduces brittleness |
| Sulfur (S) | ≤0.01 | Minimizes hot cracking |
| Iron (Fe) | Balance | Matrix of the alloy |
The mechanical properties of S32760 bars are as follows:
| Property | Typical Value |
|---|---|
| Tensile Strength | 800–1,000 MPa |
| Yield Strength (0.2% offset) | 550–750 MPa |
| Elongation | ≥20% |
| Hardness | 290–330 HB |
| Density | 7.8 g/cm³ |
| Modulus of Elasticity | 200 GPa |
| Impact Toughness (Charpy V-notch) | ≥150 J at room temp |
Heat treatment processes for S32760 bars:
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Solution Annealing: 1050–1150°C, followed by rapid quenching to maintain duplex microstructure.
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Stress Relieving: 300–500°C to relieve internal stresses.
These treatments enhance corrosion resistance and mechanical properties, while maintaining phase balance.
Testing and Certification
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Chemical Analysis: Optical emission spectroscopy
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Mechanical Testing: Tensile, hardness, impact
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Corrosion Testing: Pitting, crevice, SCC resistance
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Non-Destructive Testing (NDT): Ultrasonic, eddy current, visual
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ISO 9001/14001 & ASTM Certification: Ensures traceability and quality
Additional Information:
- Production Capacity: IN TONS
- Delivery Time: 3 TO 5 DAYS
- 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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