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Overview
Specifications
Monel 400
Monel 400 is a nickel-copper alloy combining high strength and toughness over a wide temperature range with excellent resistance to rapidly flowing brackish water and seawater. Virtually immune to chloride-induced stress corrosion cracking, it is the standard material for marine engineering, offshore splash zones, and chemical processing.
Domestic Monel Bolts & Monel Nuts Manufacturing
Atlanta Rod & Manufacturing is a dedicated domestic producer of Monel bolts and Monel nuts. At our Lavonia, Georgia facility, we hot-forge and roll threads on Monel 400 fasteners from 3/8” to 2-1/2” diameter. All products are 100% melted and manufactured in the USA and comply with Build America, Buy America (BABA) Act mandates.
Whether your project requires Monel heavy hex bolts for subsea marine connections, standard hex bolts, or mating heavy hex nuts, we deliver full Mill Test Reports with complete chemical and physical traceability. When you need to buy domestic stainless fasteners and specialty nickel-copper hardware, Atlanta Rod is your direct manufacturer.
Composition
| Element | Percentage (%) |
|---|---|
| Nickel (plus Cobalt) | 63.0 min |
| Copper | 28.0 – 34.0 |
| Iron | 2.5 max |
| Manganese | 2.0 max |
| Silicon | 0.5 max |
| Carbon | 0.3 max |
| Sulfur | 0.024 max |