High Quality Inconel and Incoloy Buttweld Pipe Fittings

600/601/625/718 • 800/800HT/825 • Strength • Sealing • Durability

Premium Inconel & Incoloy Buttweld Pipe Fittings by Ratnadeep Steel & Engg. Co.

Ratnadeep Steel & Engg. Co. is a trusted manufacturer, exporter, and supplier of premium-quality Inconel and Incoloy Buttweld Pipe Fittings, engineered to deliver outstanding performance in extreme temperature, high-pressure, and highly corrosive operating environments. Manufactured using superior nickel-based alloys, including Inconel 600, 601, 625, 718 and Incoloy 800, 800HT, 825, our fittings offer exceptional resistance to oxidation, carburization, chloride-induced corrosion, and aggressive chemical media.

Each product undergoes rigorous quality inspection, precision forming, and advanced heat-treatment processes to ensure high mechanical strength, metallurgical stability, and long-term reliability. We supply all major buttweld configurations such as elbows, tees, concentric & eccentric reducers, caps, crosses, long/short stub ends, and pipe bends, with customized options also available on request.

Renowned for their superior toughness and consistent performance at elevated temperatures, our Inconel and Incoloy Buttweld Fittings are widely used across industries such as aerospace, chemical processing, refineries, petrochemicals, offshore drilling, marine engineering, nuclear power, and heat-treatment systems. Supported by a skilled workforce and state-of-the-art manufacturing facilities, Ratnadeep Steel & Engg. Co. ensures every fitting meets stringent international standards and exact customer specifications, delivering high-performance solutions trusted worldwide.

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Explore Inconel 600 / 601 / 625 / 718 Buttweld Pipe Fittings

Inconel 600 / 601 / 625 / 718 Buttweld Pipe Fittings

Explore Incoloy 800 / 800HT / 825 Buttweld Pipe Fittings

Incoloy 800 / 800HT / 825 Buttweld Pipe Fittings

Inconel 600 Buttweld Fittings

Nickel–chromium alloy with excellent high-temperature strength
Outstanding resistance to oxidation and scaling up to 1200°C
Excellent resistance to chloride-induced stress corrosion
Ideal for heat exchangers, chemical heaters & furnace components
Good workability and weldability for fabrication of fittings
Minimum tensile strength: ~655 MPa
Used for elbows, reducers, tees, caps & stub ends
Performs reliably in alkaline and neutral salt solutions
Stable in high-temperature, high-pressure environments

Inconel 601 Buttweld Fittings

Superior oxidation resistance due to high chromium content
Excellent creep and rupture strength at elevated temperatures
Resists carburization and high-temperature corrosion
Used in heat-treating baskets, furnace tubes & petrochemical units
Highly stable protective oxide layer at high heat
Minimum tensile strength: ~600 MPa
Suitable for high-temperature fittings like elbows & bends
Performs well under thermal cycling conditions
Reliable for severe oxidizing conditions

Inconel 625 Buttweld Fittings

High-strength alloy with nickel-chromium-molybdenum niobium blend
Excellent resistance to pitting, crevice & stress corrosion
Exceptional mechanical strength without heat treatment
Used in marine, aerospace, chemical & oil-and-gas systems
Outstanding resistance to seawater & acidic media
Minimum tensile strength: ~930 MPa
Highly reliable for critical high-pressure pipelines
Suitable for tees, reducers, stub ends & pipe bends
Performs well in extreme corrosive and high-temperature service

Inconel 718 Buttweld Fittings

High-strength precipitation-hardenable nickel superalloy
Maintains excellent strength at cryogenic to 700°C
Exceptional fatigue, creep & rupture resistance
Widely used in aerospace, turbines & high-pressure systems
Resistant to oxidation, cycling heat & corrosive media
Minimum tensile strength: ~1240 MPa
Used for high-pressure elbows, tees & reducers
Stable under severe mechanical and thermal stress
Ideal for critical applications in aerospace & nuclear sectors

Incoloy 800 Buttweld Fittings

Excellent resistance to oxidation & carburization
Stable strength at high temperatures up to ~1100°C
Good stress rupture & creep properties
Ideal for heat exchangers, piping & furnace components
High nickel content ensures resistance to chloride attack
Used for elbows, tees, reducers, and forged transitions
Suitable for thermal processing & petrochemical units
Consistent performance in cyclic heating conditions
Best for moderate to high-temperature service

Incoloy 800HT Buttweld Fittings

Modified chemistry for superior high-temperature strength
Better creep & stress-rupture resistance than 800
Optimized for temperatures above 600°C
Used in heaters, reformer tubes & industrial furnaces
Excellent metallurgical stability under long-term exposure
Minimum tensile strength: ~450–520 MPa
Ideal for high-temperature pressure systems
Preferred in oil refineries & petrochemical reactors
Designed for severe thermal and mechanical stresses

Incoloy 825 Buttweld Fittings

Excellent resistance to sulfuric & phosphoric acids
Superior corrosion resistance compared to 800/800HT
Resists pitting, crevice corrosion & stress-corrosion cracking
Used in chemical processing, pickling & acid production
High nickel content prevents chloride-induced corrosion
Minimum tensile strength: ~550 MPa
Reliable in reducing & oxidizing environments
Perfect for marine & acidic fluid handling pipelines
Built for aggressive and corrosive industrial settings

Our Buttweld Pipe Fittings are manufactured using advanced processes and undergo extensive quality checks to ensure flawless weldability, durability, and long service life. Each fitting is thoroughly inspected using key NDT techniques such as radiographic testing (RT), ultrasonic testing (UT), hydrostatic testing, and visual/dimensional examination. We also perform detailed chemical composition analysis and mechanical property testing to ensure material compliance with strict industry standards.

Throughout the forming and welding stages, every buttweld fitting is monitored closely to eliminate defects such as misalignment, surface irregularities, and wall-thickness variations. This ensures perfect joint integrity and high-performance reliability in pipelines carrying high temperatures, pressures, and corrosive media. All our buttweld fittings fully comply with ASME, ASTM, MSS-SP, and related global specifications, making them a preferred choice for critical piping systems worldwide.

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Looking for high-quality Inconel 600/601/625/718 and Incoloy 800/800HT/825 Buttweld Pipe Fittings? Get in touch with us today.