Materials We Use – Uncompromised Strength, Engineered Precision
At SM Fasteners, quality begins at the core — the material. Every bolt, nut, and stud we manufacture is a product of tested metallurgy, crafted to meet the most demanding industry standards. From stainless steel to high-performance nickel alloys, we offer a wide spectrum of materials for various industrial and environmental requirements.
Choose your material to explore its advantages, applications, and available grades.
🧱 Stainless Steel
Grades: 304, 304L, 316, 316L, 310, 321, 347
Stainless steel is the backbone of our fastener range — corrosion-resistant, durable, and cost-effective. Ideal for marine, food processing, chemical, and architectural applications.
✅ Corrosion Resistance
✅ High Strength-to-Weight Ratio
✅ Non-reactive Surface for Sanitary Environments
🌊 SMO 254
SMO 254 is a super-austenitic stainless steel known for its exceptional resistance to pitting, crevice corrosion, and chloride stress. It outperforms standard austenitic grades in seawater and chemical environments.
Ideal For: Desalination plants, offshore platforms, heat exchangers.
✅ Superior Chloride Resistance
✅ High Molybdenum Content
✅ Weldability with High Strength
⚒️ Duplex Steel
Grades: UNS S31803, S32205
Duplex stainless steel combines the benefits of austenitic and ferritic steels — offering high strength and excellent resistance to corrosion and cracking.
Used In: Pulp and paper, chemical processing, pressure vessels.
✅ Twice the Strength of 304/316
✅ Good Fatigue Resistance
✅ Cost-Efficient for High-Strength Needs
🔩 Super Duplex Steel
Grades: UNS S32750, S32760
An enhanced version of duplex, Super Duplex is preferred for critical offshore and oil & gas structures due to its superior tensile strength and exceptional corrosion resistance.
✅ Extreme Mechanical Strength
✅ Excellent Resistance in Aggressive Chloride Environments
✅ Lower Maintenance Lifecycle
🔥 Inconel
Grades: Inconel 600, 625, 718
Inconel is a nickel-chromium-based alloy perfect for high-temperature and oxidation-prone applications.
Applications: Aerospace, nuclear reactors, marine exhausts.
✅ Oxidation & Heat Resistance
✅ High Performance in Extreme Environments
✅ Creep Resistance under Stress
⚗️ Monel
Grades: Monel 400, K500
Monel is a nickel-copper alloy known for its excellent resistance to seawater, steam, and acidic environments.
Common Uses: Shipbuilding, pump shafts, and chemical plants.
✅ High Resistance to Saltwater
✅ Maintains Toughness at Sub-Zero Temperatures
✅ Work-Hardenable
🧪 Hastelloy
Grades: Hastelloy C22, C276
Engineered for severe chemical environments, Hastelloy offers unmatched protection against strong oxidizers, reducing agents, and acids.
Best For: Chemical reactors, pickling equipment, pollution control systems.
✅ Universal Corrosion Resistance
✅ Non-Magnetic Alloy
✅ Superior Fabricability
🌐 Incoloy
Grades: Incoloy 800, 825
Incoloy alloys are known for their stability at high temperatures and resistance to carburization and oxidation.
Applications: Nuclear power, pressure vessels, heat exchangers.
✅ Strong in Sulfidizing and Oxidizing Environments
✅ High Strength at Elevated Temperatures
✅ Excellent Formability
🧲 Nickel Alloys
Nickel alloys provide a high level of corrosion resistance, especially in reducing conditions. They are ideal for electrical components and extreme chemical applications.
Used In: Aerospace, electronics, power generation.
✅ High Thermal & Electrical Conductivity
✅ Magnetic & Non-Magnetic Grades Available
✅ Stable at High Temperatures
💬 Need Help Choosing the Right Material?
Let our technical team guide you in selecting the ideal material based on your project’s operating environment and performance requirements.
📞 +91-8968469570 | ✉️ susheel@smfastners.com