SS 904L Fasteners – The Ultimate Solution for Corrosive Environments
Aanuraj Fasteners Pvt Ltd manufactures top-quality 904L stainless steel (SS 904L) nuts, studs, and bolts, designed to withstand some of the most corrosive environments.
Our SS 904L fasteners, made from alloy 1.4539 (UNS N08904 – 904L-SS2562), offer premium resistance against diluted sulfuric acid and chloride-induced corrosion, making them ideal for chemical, marine, and industrial applications.
Chemical Composition of SS 904L Fasteners
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | – | 0.06 |
| Manganese (Mn) | – | 2.00 |
| Chromium (Cr) | 19.00 | 28.00 |
| Nickel (Ni) | 23.00 | 28.00 |
| Molybdenum (Mo) | 4.00 | 5.00 |
| Nitrogen (N) | – | 0.10 |
| Copper (Cu) | 1.00 | 2.00 |
| Sulfur (S) | – | 0.035 |
| Phosphorus (P) | – | 0.045 |
Mechanical Properties of SS 904L Fasteners:
| Mechanical Properties | ASTM A240 |
|---|
| Yield Strength (Rp0.2, MPa) | ≥ 230 |
| Tensile Strength (Rm, MPa) | 520 – 720 |
| Elongation (%) | ≥ 35 |
| Hardness (HB) | ≤ 90 |
| Impact, Charpy-V (-196ºC) [J] | 60 |
Why Choose SS 904L Fasteners?
SS 904L is a super austenitic stainless steel designed to handle moderate to high corrosion risks, with resistance that surpasses other stainless steels due to its high nickel, molybdenum, and chromium content. Here are some unique advantages:
Corrosion Resistance: SS 904L fasteners exhibit excellent resistance to acidic and chloride environments, including dilute sulfuric acid and seawater, making them invaluable for marine, pharmaceutical, and chemical industries.
Long-Lasting Performance: Solution annealing in SS 904L improves its durability and resistance against intergranular corrosion, enabling long-term performance even in harsh conditions.
Wide Application Compatibility: From handling corrosive chemicals to withstanding saltwater environments, 904L fasteners are highly versatile, making them suitable for pumps, valves, and marine hardware.
Applications of 904L Stainless Steel Fasteners:
SS 904L fasteners are widely used in industries requiring high resistance to corrosive elements. Some specific applications include:
Chemical Processing: For equipment exposed to acidic and chloride environments.
Pharmaceuticals: In plant equipment where corrosion resistance is crucial.
Marine Industry: In seawater-exposed parts, where durability and corrosion resistance are essential.
Oil and Gas: In equipment requiring high corrosion resistance and durability.
Valves and Pumps: Especially in contact with chlorides or sulfuric acid.
Why Choose Aanuraj’s 904L Fasteners?
At Aanuraj Fasteners Pvt Ltd, we prioritize quality by ensuring each fastener undergoes strict quality checks and testing processes, including solution annealing to enhance longevity. Our SS 904L fasteners provide the following benefits:
High-Quality Material: We use certified 1.4539 (UNS N08904 – 904L) stainless steel, ensuring that our fasteners meet the highest industry standards.
Reliable and Durable: With added nickel and molybdenum, our fasteners resist corrosion in the most challenging environments, offering longer-lasting solutions than conventional fasteners.
Custom Solutions: We offer a range of fasteners, from hex bolts to hex nuts, specifically designed to meet the demands of corrosive environments.
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