Zeron Fastners
Nickel Alloys Inconel 625 Anchor Fasteners
Inconel 625 Anchor Fasteners are specialized, high-integrity fasteners used to secure machinery, structural steel, pipe supports, and equipment to concrete or masonry foundations. This category includes J-Bolts, L-Bolts, and Chemical Anchor Studs. Manufactured from the high-performance nickel-chromium-molybdenum superalloy, UNS N06625 (Alloy 625), these anchors are essential in environments where conventional carbon or stainless steel fasteners would fail due to corrosion or high heat. The alloy's unique composition, strengthened by molybdenum and niobium, provides exceptional tensile strength and creep resistance while offering outstanding protection against pitting, crevice corrosion, and chloride ion stress corrosion cracking (SCC). Inconel 625 anchors are the preferred choice for securing critical infrastructure in offshore platforms, chemical reactors, furnace linings, and bridges exposed to marine environments or aggressive chemicals. We manufacture and supply these anchors in compliance with standards such as ASTM F1554, ASTM B446, and customer-specific designs.
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Chemical Composition (UNS N06625 / Alloy 625)
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 58.0 Min |
| Chromium (Cr) | 20.0 to 23.0 |
| Molybdenum (Mo) | 8.0 to 10.0 |
| Niobium + Tantalum (Nb + Ta) | 3.15 to 4.15 |
| Iron (Fe) | 5.0 Max |
| Carbon (C) | 0.10 Max |
| Cobalt (Co) | 1.0 Max |
| Aluminum (Al) | 0.40 Max |
| Titanium (Ti) | 0.40 Max |
| Silicon (Si) | 0.50 Max |
| Manganese (Mn) | 0.50 Max |
| Phosphorus (P) | 0.015 Max |
| Sulfur (S) | 0.015 Max |
Note: Composition according to specifications like ASTM B446 ASME SB446.
Mechanical Properties (UNS N06625 / Alloy 625)
| Property (Annealed Condition) | Value |
|---|---|
| Ultimate Tensile Strength (MPa) | 930 Min |
| Yield Strength (0.2% Proof) (MPa) | 517 Min |
| Elongation (%) | 42.5 Min |
| Hardness (HBW Max) | 280 |
| Density (g cm⁻³) | 8.44 Typical |
| High-Temperature Limit (°C) | 982 Typical |
| Melting Range (°C) | 1290 to 1350 |
Values are typical and may vary based on specific product form, size, and heat treatment.