Duplex 2205 & Super Duplex 2507 Fasteners
Super Alloy Bolts | High-Strength 30CrMnSiNi2A, 17-4PH, Duplex 2205 & Super Duplex 2507 Fasteners
SSM manufactures and supplies premium super alloy bolts designed for heavy-duty, high-stress, and corrosive environments. Available in materials such as 30CrMnSiNi2A, 17-4PH, Duplex 2205, and Super Duplex 2507, these bolts are fully ASTM, GB, and DIN compliant, providing reliable performance in oil & gas, petrochemical, marine, and power generation industries.
Product Overview
Super alloy bolts are engineered to handle extreme mechanical loads, high temperatures, and aggressive corrosion conditions.
Each bolt undergoes precision forging, heat treatment, and surface finishing to meet the dimensional and mechanical requirements of international standards.
SSM provides bolts in a variety of sizes, thread types, and head styles, ensuring compatibility with heavy machinery, pressure vessels, offshore platforms, and structural applications.
Materials and Properties
| Material | Key Features |
|---|---|
| 30CrMnSiNi2A | High-strength alloy steel with excellent toughness and wear resistance |
| 17-4PH | Precipitation-hardening stainless steel with superior corrosion resistance and high tensile strength |
| Duplex 2205 (F51) | Excellent pitting, stress corrosion, and chloride resistance; high yield strength |
| Super Duplex 2507 (F53 / SAF 2507) | Extremely high corrosion resistance, high strength, ideal for aggressive chemical and marine environments |
Technical Specifications
| Parameter | Description |
|---|---|
| Standards | ASTM, GB, DIN |
| Type | Hex Bolt, Stud Bolt, Heavy Fasteners |
| Material | 30CrMnSiNi2A / 17-4PH / Duplex 2205 / Super Duplex 2507 |
| Size Range | M6 – M100 (custom sizes available) |
| Thread Type | UNC / UNF / Metric |
| Finish | Black Oxide, Galvanized, PTFE/Xylan Coated (optional) |
| Strength Class | 8.8, 10.9, 12.9, custom mechanical requirements |
| Testing | Tensile, Hardness, PMI, NDT, and Certification available |
| Certification | EN 10204 3.1 / 3.2, Mill Test Reports, Material Certificates |
Applications
Offshore oil & gas platforms
Petrochemical and chemical processing plants
Power generation and nuclear industry
Marine and desalination equipment
Heavy machinery and structural assemblies
Advantages of SSM Super Alloy Bolts
High strength and toughness suitable for extreme loads
Corrosion resistance for harsh chemical and marine environments
Precision forging and machining ensure dimensional accuracy
Custom OEM production for unique specifications
30+ years of manufacturing experience in high-performance fasteners
Conclusion
SSM's Super Alloy Bolts in 30CrMnSiNi2A, 17-4PH, Duplex 2205, and Super Duplex 2507 deliver unmatched strength, reliability, and corrosion resistance, meeting international ASTM, GB, and DIN standards.
Ideal for heavy-duty industrial, marine, and chemical applications, SSM provides certified, high-quality fasteners for global customers seeking durable and high-performance bolting solutions.
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