Inconel 625 Anchor Bolts
| Standard | ASTM B446 / ASTM F468 ref · OEM |
|---|---|
| Material | Inconel 625 / Alloy 625 |
| Strength Grade | Alloy 625 |
| Size Range | Project range |
| Surface Treatment | Pickled / Passivated |
01
Product Description
Product Description & Key Specifications
Inconel 625 anchor bolts are nickel alloy anchoring fasteners used where chloride corrosion, seawater exposure, chemical service or severe outdoor environments make carbon steel or standard stainless anchors unsuitable. They are produced from Inconel 625 / Alloy 625 to ASTM B446 / ASTM F468 references or OEM drawings.
Alloy 625 is selected for strong corrosion resistance in offshore, marine, chemical and renewable energy equipment. Anchor bolt geometry is usually drawing-based, including diameter, total length, thread length, projection, end form, nut/washer stack and embedment details. Final selection should follow the foundation or equipment design.
Pickled and passivated finish supports clean nickel alloy surface condition. RFQs should confirm alloy, anchor dimensions, thread, finish, PMI, MTC, heat traceability, NACE or project corrosion requirements, and whether matching Inconel nuts and washers are required.
| Product type | Inconel 625 anchor bolts / nickel alloy anchor rods |
|---|---|
| Standards | ASTM B446 / ASTM F468 reference / OEM drawing |
| Material | Inconel 625 / Alloy 625 |
| Strength grade | Alloy 625 material condition by project specification |
| Size range | Project range by drawing |
| Common models | M12, M16, M20, M24, M30, M36 and drawing-based anchor lengths |
| Thread type | Metric or project thread with drawing-defined thread length |
| Surface finish | Pickled / Passivated |
| Matched hardware | Nickel alloy hex nuts and nickel alloy flat washers |
| Documentation | MTC, PMI, CoC, dimensional report and passivation report on request |
Dimensions & SpecificationsDIN 529
Technical Drawing
Dimensional Table
| Parameter | M8 | M10 | M12 | M16 | M20 | M24 | M30 | M36 | M42 | M48 | M56 | M64 | M72 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6 |
| b/max | 22.5 | 28 | 33.5 | 44 | 55 | 66 | 82 | 98 | 114 | 130 | 151 | 172 | 192 |
| b/min | 20 | 25 | 30 | 40 | 50 | 60 | 75 | 90 | 105 | 120 | 140 | 160 | 180 |
| L1/max | 27 | 33 | 39 | 51 | 63 | 78 | 98 | 118 | 138 | 158 | 183 | 203 | 243 |
| L1/min | 21 | 27 | 33 | 45 | 57 | 72 | 92 | 112 | 132 | 152 | 177 | 197 | 237 |
| L2/max | 50 | 60 | 70 | 90 | 110 | 130 | 160 | 195 | 225 | 255 | 295 | 340 | 375 |
| L2/min | 40 | 50 | 60 | 80 | 100 | 120 | 150 | 185 | 215 | 245 | 285 | 330 | 365 |
02
Selection
Selection Advantages by Application
Offshore and Marine Foundations
Inconel 625 anchor bolts are used for seawater-exposed equipment bases, offshore skids and marine structures where chloride corrosion resistance is critical.
Oil and gas fastenersMarine Renewable Energy Equipment
Alloy 625 anchor bolts can be specified for tidal, offshore wind auxiliary and coastal renewable equipment where stainless steel may not meet corrosion requirements.
Renewable energy fastenersChemical and Severe Service Equipment
Nickel alloy anchors support chemical processing and severe corrosion equipment when the foundation design requires material compatibility with aggressive media.
Industrial equipment fasteners03
Assembly
Recommended Matching Products
04
Manufacturing
Manufacturing & Quality Control
Manufacturing CapabilityQuality Control
Cutting, machining and threading from Alloy 625 barInconel 625 material certificate and heat number verification
Drawing-based anchor geometry and thread length productionOverall length, thread length, diameter and end-form inspection
Pickling and passivation for nickel alloy surface conditionSurface inspection, PMI and passivation report support when specified
Anchor set supply with nickel alloy nuts and washersAssembly compatibility and package traceability checks
Export packaging by project line item or foundation setMTC, PMI, CoC and dimensional reports prepared on request
05
FAQ
Common Questions Before RFQ
Why choose Inconel 625 anchor bolts?
They are selected for severe corrosion environments such as seawater, offshore equipment and chemical service where standard steel or stainless anchors may not be sufficient.
Are Inconel anchor bolts standard sizes?
Most are produced to project drawings because anchor length, thread length, projection and end form depend on the foundation design.
Can PMI and MTC be supplied?
Yes. PMI, material test certificates, CoC and dimensional reports can be supplied when required.
Can matching nuts and washers be supplied?
Yes. Inconel 625 anchors can be supplied with nickel alloy hex nuts and flat washers.
What RFQ details are needed?
Send drawing, alloy, diameter, length, thread length, end form, quantity, finish and certificate requirements.
Need Inconel 625 anchor bolts for severe corrosion service?
Send your anchor drawing, alloy requirement, size, thread length, finish, quantity, matching nuts/washers and PMI/MTC scope. We can quote Alloy 625 anchor bolts for offshore and chemical equipment.
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