Stainless Steel Fasteners
Stainless Steel Fasteners are corrosion-resistant, durable, and high-strength fasteners commonly used in environments where resistance to oxidation, staining, and harsh chemicals is critical. They are made primarily from austenitic (300 series) and martensitic stainless steel grades, offering various mechanical properties suitable for industrial, marine, and architectural applications.
| Parameter | Specification |
|---|---|
Product Type |
Stainless Steel Fasteners |
Material Grades |
303, 304, 305, 316, 410, 416, 430, 348 |
Size Range |
M2 – M64 (varies by product and application) |
Mechanical Strength |
Tensile strength: up to 1,220 MPa (depending on grade) |
Corrosion Resistance |
|
Surface Finish |
Plain, Passivated, Electro-Polished, Zinc Plated, Black Oxide |
Industrial Applications
Stainless Steel Fasteners are widely used in:
- Marine and offshore industries: High resistance to saltwater corrosion in boats, docks, and offshore platforms.
- Aerospace and defense: Durable under high stress and corrosive environments.
- Food processing and pharmaceutical: Non-reactive and hygienic fasteners suitable for sanitary conditions.
- Construction and architectural: Maintains aesthetic appeal and structural integrity in exposed environments.
- Chemical and petrochemical plants: Resistant to acids, bases, and other corrosive substances.
Product Description
Stainless steel fasteners are manufactured from various alloy grades tailored to diverse applications. The commonly used 300 series (such as 303, 304, and 316) offer a balance of corrosion resistance and mechanical strength. Grade 316 includes molybdenum, improving resistance to pitting and crevice corrosion in harsh chloride environments. Martensitic grades such as 410 and 416 provide higher hardness and strength but with slightly lower corrosion resistance. Specialty grades like duplex stainless steels enhance resistance to stress corrosion cracking and have superior mechanical properties. Stainless steel fasteners are preferred where longevity, strength, and corrosion resistance are critical.
Product specifications
- Grades & Composition:
- 303, 304, 305: Austenitic stainless steel; good corrosion resistance, easy machining.
- 316, 316L: Enhanced corrosion resistance with molybdenum; suited for marine applications.
- 410, 416: Martensitic grades with heat-treatable hardness and strength.
- 348: Austenitic with nitrogen and molybdenum for improved high-temp strength.
- Mechanical Properties:
- Tensile strength ranges from 500 MPa to over 1,200 MPa depending on type and treatment.
- Typical elongation of 30–40% ensuring ductility.
- Operating Temperature Range: Approximately -50°C to +400°C, grade-dependent.
- Surface Finishes: Passivated, electro-polished, zinc plated, black oxide, plain polished.
- Standards: ASTM, ISO, DIN, AISI specifications applicable to fasteners.
- Corrosion Resistance: Excellent in a wide range of environments; 316 and duplex grades resist seawater and chemicals.
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