Precision-Engineered for Industrial Excellence
AstroForge Fitting Industries delivers a wide range of industrial fasteners designed to meet the demanding requirements of industries such as marine, petrochemical, construction, and energy. Our fasteners are available in a variety of materials, sizes, and grades, ensuring exceptional performance and reliability across a spectrum of challenging environments.
Stainless Steel Fasteners
AstroForge’s stainless steel fasteners are built for superior corrosion resistance and high mechanical strength. They are ideal for marine, chemical, and industrial environments. Offered in a wide selection of types including bolts, stud bolts, hex head bolts, U-bolts, J bolts, and anchor bolts, they are available in sizes ranging from M3 to M56 and 3/6 inch to 2 inch. Grades include 303, 304, 304L, 316, 316L, 316Ti, 321, 347, 904L, 17-4PH, and 410.
Nickel Alloy Fasteners
Nickel alloy fasteners are engineered for environments requiring exceptional resistance to high temperatures and corrosive chemicals. Commonly used in aerospace, chemical processing, and marine sectors, these fasteners offer strength and longevity. Available in the same size and type range, they come in grades such as INCONEL 600, 601, 625, 718, HASTELLOY C-276, MONEL 400, ALLOY 20, and TITANIUM Grades 1 to 13.
Duplex & Super Duplex Fasteners
Designed for applications exposed to aggressive environments, duplex and super duplex fasteners provide high strength and excellent resistance to stress corrosion cracking. They are extensively used in offshore platforms, oil and gas facilities, and desalination systems. Grades include UNS S31803 (F51), S2205 (F60), S32750 (F53), and S32760 (F55).
Alloy Steel Fasteners
Alloy steel fasteners are manufactured for durability under high pressure and temperature conditions. These fasteners are suitable for power plants, heavy machinery, and high-performance applications. They offer excellent toughness and wear resistance, and are available in grades such as 40 Cr, EN 19, EN 24, and EN 31.
Copper Nickel Fasteners
Copper nickel fasteners are specially designed for marine applications where resistance to seawater corrosion is essential. These are widely used in shipbuilding, marine hardware, and seawater systems. Grades include Copper Nickel 90/10 and Copper Nickel 70/30, providing long-lasting durability in saline environments.
Why Choose AstroForge Fasteners
AstroForge combines material diversity, precise engineering, and industry-specific solutions to provide fasteners that meet the toughest operational requirements. Our products are available in a range of grades and sizes, with customization options to match project-specific needs. From standard to specialized applications, AstroForge fasteners deliver consistent performance, reliability, and strength across all industries.
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Quality Pipe Fitting Solutions
Reliable, durable, and precise pipe fittings for every industrial need.
Buttweld Fittings
High-quality buttweld fittings for secure, leak-proof pipe connections.
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Flanges
Durable industrial flanges for reliable piping connection and pressure sealing.
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Threaded Fittings
Precision threaded fittings for secure, easy, and leak-resistant pipe connections.
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Socket Weld Fittings
Robust socket weld fittings for high-pressure, leak-proof pipe connections.
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Pre Fabricated Fittings
Custom pre-fabricated fittings for efficient, accurate, and time-saving piping installations.
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Fastners
High-performance fasteners for strong, reliable, and durable industrial connections.
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Pipes & Tubes
Premium pipes and tubes for efficient flow and structural reliability in industrial systems.
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Spades & Ring Spacers
Spades and ring spacers for safe pipeline isolation and maintenance operations.
Explore moreFAQs - Stainless Steel Flanges
SS 304L has a lower carbon content (0.035% max vs. 0.08% max in 304), which helps reduce carbide precipitation during welding. This makes it ideal for applications where welding is required without compromising corrosion resistance.
SS 304H contains a higher carbon level (up to 0.10%), providing improved strength at elevated temperatures. It's commonly used in heat exchangers, boilers, and pressure vessels operating above 500°C.
SS 310 and 310S have high chromium (24–26%) and nickel (19–21%) content, offering excellent oxidation resistance and strength at high temperatures. SS 310S has lower carbon for better weldability.
Molybdenum (2–3%) enhances resistance to pitting, crevice corrosion, and chlorides. SS 316L, with lower carbon, is better suited for welded structures in marine and chemical environments.
Titanium stabilizes the alloy by preventing carbide formation during welding, maintaining corrosion resistance at high temperatures. It's used in exhaust systems, pressure vessels, and aircraft parts.
SS 904L is a high-alloy austenitic stainless steel with high nickel (23–28%), molybdenum (4–5%), and added copper (1–2%). It offers excellent resistance to sulfuric acid, seawater, and chloride stress corrosion.
SS 317/317L have higher chromium (18–20%) and molybdenum (3–4%) content than SS 316, offering improved corrosion resistance in acidic and aggressive environments. 317L has lower carbon for better weldability.
SS 446, a ferritic stainless steel, withstands temperatures up to 1510°C. With 23–30% chromium and no nickel, it provides outstanding resistance to scaling and oxidation at high temperatures.
Tensile Strength: 75,000 psi (515 MPa)
Yield Strength: 30,000 psi (205 MPa)
Elongation: 35%
Melting Point: ~1400 °C (2550 °F)
Density: 8.0 g/cm³
SS 347H has a higher carbon content (0.04–0.10%) compared to standard 347. This improves creep strength, making it suitable for high-temperature service, like in reactors and boilers.