Zeron 100 stud Bolt UNS S32760 Faseners High-Performance Fasteners for Extreme Environments
Super Duplex S32760 stud bolts, also known as Zeron 100, are engineered for applications requiring exceptional strength and corrosion resistance.
Super Duplex UNS S32760 is one of the most common super duplex grade in the market. UNS S32760 is a super duplex stainless steel especially designed for service in aggressive chloride-containing environments and has additions of W and Cu compared to UNS S32750. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength.
ASTM A1082 is a standard specification that covers high-strength stainless steel bolting materials, including bolts, screws, stud bolts, threaded rods, and nuts, intended for special-purpose applications such as pressure vessels.
What to know the difference between UNS S32760 and UNS S32750.
UNS S32760 Stud bolt Specifications
- Material Grade: UNS S32760 (Zeron 100)
- Standards: ASTM A479, ASTM A276, ASTM A182 F55,ASTM A1082
- Equivalent Designations: WNR 1.4501, SAF 32760
- Sizes:
- Metric: M6 to M100
- Imperial: ¼″ to 4″
- Thread Types: UNC, UNF, Metric Coarse & Fine
- Types Available: Full-thread, double-end, tap-end, and custom configurations
ASTM A1082 UNS S32760 is available in various forms to suit different applications:
- Bolts
- Stud bolts
- Threaded rods
- Nuts
- Washers
Mechanical Properties and hardness requirement of UNS S32760
| UNS Designation | Type | Condition | Tensile Strength, min, ksi [MPa] | Yield Strength,<sup>A</sup> min, ksi [MPa] | Elongation in 2 in. [50 mm] or 4D, min, % | Reduction of Area, min, %<sup>B,C</sup> | Brinell Hardness, max |
|---|---|---|---|---|---|---|---|
| S32760 | — | annealed | 109 [750] | 80 [550] | 25 | — | 310 |
Chemical Composition (%) of UNS S32760
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 24.0–26.0 |
| Nickel (Ni) | 6.0–8.0 |
| Molybdenum (Mo) | 3.0–4.0 |
| Nitrogen (N) | 0.20–0.30 |
| Copper (Cu) | 0.50–1.00 |
| Tungsten (W) | 0.50–1.00 |
| Carbon (C) | ≤ 0.030 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.010 |
Applications
Because of its high strength and corrosion resistance, S32760 stud bolts are ideal for:
- Offshore oil and gas platforms
- Subsea equipment
- Chemical processing plants
- Desalination facilities
- Marine engineering
- Power generation systems
Ordering Information
When specifying S32760 stud bolts, please provide:
- Size and Length: e.g., M20 × 150mm or ¾″ × 6″
- Thread Type: UNC, UNF, Metric Coarse/Fine
- Type: Full-thread, double-end, tap-end, etc.
- Standards Compliance: ASTM A479, ASTM A276, ASTM A182 F55
- Testing Requirements: e.g., MTC per EN 10204 3.1, PMI
- Surface Finish: Mill finish, PTFE coated
