Duplex, Titanium & Inconel Welding Training in Mumbai
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Titanium, Nickel, Inconel, Duplex Welding Training & Consultancy Services
In short: We train and qualify welders on duplex and super duplex stainless steel, titanium, Inconel and other nickel alloys at our Vasai (E) centre in the Mumbai Metropolitan Region, and provide consultancy on procedures for these materials. These alloys are unforgiving: get the heat input, purging or interpass temperature wrong and the joint loses the corrosion resistance it was specified for, often without looking defective.
Quick facts
- Where: Mahalaxmi Industrial Estate, Vasai (E), Vasai-Virar, Thane-Palghar 401208. Trainees come from Mumbai, Navi Mumbai, Thane, Vasai-Virar, Palghar and the refinery and petrochemical belts.
- Grades covered: duplex 2205 and 2304, super duplex 2507 and Zeron 100, titanium grades 2 and 5, Inconel 625 and 825, Monel, and austenitic stainless including 316L.
- Processes: GTAW (TIG) primarily, since these materials are usually TIG-welded, plus SMAW and FCAW where the application allows.
- Who it is for: experienced welders moving onto alloy work, and companies whose welders need qualifying for a specific alloy on a project.
- Who teaches: Mr. Prakash Jadhav, our founder, an AWS Certified Welding Inspector (CWI, ID 733626) and TWI CSWIP inspector with over 26 years in welding inspection.
- Fees and duration: quoted on request, because both depend on the alloy, the processes and whether a class society qualification follows. Call +91 8169178256 or message us on WhatsApp.
Why these materials need separate training
Duplex and super duplex. The whole point of duplex is a roughly even balance of austenite and ferrite. Weld it too cold and you get excess ferrite in the heat-affected zone; too hot and you get intermetallic phases. Either way the corrosion resistance you paid for is gone, and a visual inspection will not show it. Heat input control and interpass temperature limits are the skill being taught, not bead appearance.
Titanium. Titanium picks up oxygen, nitrogen and hydrogen from the air while hot and turns brittle. The work is really about shielding: trailing shields, back purging, gas coverage until the weld cools, and reading the weld colour, where straw is acceptable and blue or grey is not. A clean-looking titanium weld can still be scrap.
Inconel and nickel alloys. Sluggish, viscous weld pools that do not flow like steel, with a real tendency to hot cracking. Travel speed, bead placement and dilution control are what separate a sound joint from a cracked one.
What the training covers
- Material behaviour. What each alloy does when heated, and why the specification sets the limits it does.
- Heat input and interpass control. Measuring it, staying inside the window, and what happens outside it.
- Purging and shielding. Back purge setup, oxygen level targets, trailing shields and gas selection.
- Joint preparation and cleanliness. Contamination control, dedicated tooling and why carbon steel debris ruins a stainless or titanium joint.
- Acceptance and testing. Ferrite measurement for duplex, weld colour assessment for titanium, and the NDT and mechanical tests the applicable code requires.
- Qualification. Preparation for the welder qualification test on the alloy, including DNV, ABS, Lloyds or IRCLASS endorsement where the project requires it.
🛠️ What is Specialized Welding Training & Consultancy?
Specialized welding refers to advanced techniques used for welding high-performance, corrosion-resistant materials such as Titanium, Nickel alloys, Inconel, and Duplex stainless steel. These materials are often used in extreme conditions, including high temperatures, aggressive environments, and high-stress applications in industries like aerospace, marine, power generation, and chemical processing.
Our Welding Training & Consultancy Services offer:
- Expert welding techniques for challenging alloys
- Process optimization for specific material properties
- High-quality weld performance and defect prevention
- Industry-standard certifications for welders and procedures
🌟 Materials We Specialize In
1️⃣ Titanium Welding
- Properties of Titanium: Lightweight, high strength, excellent corrosion resistance, especially in extreme temperatures.
- Applications: Aerospace, medical implants, chemical processing, marine (subsea).
Challenges in Welding Titanium:
- Sensitive to contamination: Needs inert gas shielding (e.g., argon).
- Sensitive to heat: High temperatures can affect material properties.
- Requires precise control of welding parameters (voltage, amperage, shielding gas flow).
Training Focus:
- TIG (Gas Tungsten Arc Welding) techniques for titanium alloys.
- Contamination control and cleanliness practices.
- Welding parameters: Heat control, preheat, and post-weld heat treatment.
2️⃣ Nickel Alloys Welding
- Properties of Nickel Alloys: Excellent resistance to oxidation, corrosion, and high-temperature environments.
- Applications: Gas turbines, heat exchangers, nuclear reactors, aerospace components.
Challenges in Welding Nickel Alloys:
- Tendency to form cracks: Requires special welding procedures and filler materials.
- Heat and thermal expansion: Can lead to distortion or cracking.
Training Focus:
- Weld process selection: Choosing between TIG, MIG, or SMAW based on alloy type.
- Pre-heating and post-weld heat treatment to avoid cracking.
- Control of intergranular corrosion by managing the cooling rate.
3️⃣ Inconel Welding
- Properties of Inconel (e.g., Inconel 625, 718): High strength, oxidation, and corrosion resistance in extreme temperatures.
- Applications: Aircraft engines, chemical processing plants, power plants, nuclear reactors.
Challenges in Welding Inconel:
- High sensitivity to heat: Requires precise heat input control.
- Cracking susceptibility: Especially in the heat-affected zone (HAZ).
Training Focus:
- Welding methods: TIG, MIG, and submerged arc welding.
- Welding parameter control to avoid cracking and deformation.
- Post-weld heat treatment (PWHT) for stress relief.
- Selection of appropriate filler materials for strength and corrosion resistance.
4️⃣ Duplex Stainless Steel Welding
- Properties of Duplex Steel: Combination of austenitic and ferritic microstructures, offering high strength, excellent resistance to stress corrosion cracking, and superior pitting resistance.
- Applications: Chemical processing, marine environments, offshore oil rigs, paper and pulp industry.
Challenges in Welding Duplex Steel:
- Maintaining balance between ferrite and austenite phases.
- Avoiding carbide precipitation which can compromise corrosion resistance.
- Need for precise heat input control to avoid phase imbalance.
Training Focus:
- Welding methods: Mostly TIG and MIG processes.
- Maintaining ferrite content in the weld to avoid cracking and reduce stress corrosion.
- Post-weld heat treatment (PWHT) to stabilize phases and avoid brittleness.
- Filler material selection for optimal corrosion resistance.
🎓 Training & Certification Services
- Tailored Welding Training Programs
- Customized Courses: Tailored to your team’s specific needs and the materials they’ll be working with.
- Hands-on Training: Real-world scenarios to practice on Titanium, Nickel alloys, Inconel, and Duplex stainless steel.
- Level I & II Training: For beginners to intermediate welders, covering the fundamental principles and applications.
- Advanced Welding Techniques: For senior welders and welding supervisors to manage complex welds and challenging materials.
- Welder Qualification & Certification
- WPQ (Welder Performance Qualification): Certification in compliance with international standards (ASME, AWS, ISO).
- WPS/PQR Assistance: Development and qualification of Welding Procedure Specifications and Procedure Qualification Records.
- Welding Procedure Development
- Creation of WPS for complex materials (Titanium, Inconel, etc.) ensuring compliance with applicable codes.
- Development of PQR based on material specifications, welding parameters, and heat treatment.
🛠️ Consultancy Services Offered
- Process Optimization
- Welding Procedure Review and Optimization: Evaluation of existing procedures and making recommendations for improving efficiency, reducing costs, and improving weld quality.
- Automation Integration: Introducing robotic welding and automation to enhance productivity and precision.
- Failure Analysis & Root Cause Investigation
- Identifying reasons for welding failures such as cracks, porosity, and corrosion.
- Metallurgical analysis and corrective actions to prevent future issues.
- Equipment Selection & Setup
- Guidance on the best equipment and technology for welding Titanium, Nickel alloys, Inconel, and Duplex steel.
- Assistance with parameter selection for optimal performance and cost-effectiveness.
- Quality Control & Assurance
- Implementation of quality management systems for welding, ensuring compliance with ISO, AWS, ASME, and other standards.
- NDT (Non-Destructive Testing) services to verify weld quality and integrity.
- On-Site Supervision
- Providing welding supervisors on-site to ensure proper techniques are being followed, and assist in resolving any challenges faced during welding operations.
💡 Why Choose Our Welding Training & Consultancy?
- Expert Trainers: Industry-certified professionals with decades of experience working with Titanium, Nickel, Inconel, and Duplex steels.
- Global Standards: Training and consultancy aligned with international welding standards such as ASME, AWS, ISO, and more.
- Customized Programs: We design programs specifically for the challenges and materials your team is working with.
- Quality Assurance: Ensure optimal performance and compliance with code requirements and client specifications.
- Competitive Advantage: Having a highly qualified team skilled in welding these advanced alloys helps your company stand out in the marketplace.
📈 Benefits for Businesses
- Increased productivity and efficiency through optimized welding processes.
- Enhanced weld quality, reducing the risk of failure and rework.
- Minimized downtime and operational delays due to faulty welding procedures.
- Improved safety by ensuring welders are trained to handle complex and high-risk materials safely.
- Enhanced competitiveness in the marketplace by offering specialized welding services.
Frequently asked questions
Do you train on super duplex 2507 specifically?
Yes, along with duplex 2205 and 2304. Super duplex has a tighter heat input window than standard duplex, so it is treated as its own exercise rather than an extension of 2205 work.
What is the fee for duplex or titanium welding training in Mumbai?
Quoted on request. It depends on which alloys you need, how many processes, how long you train and whether a class society qualification test follows. Call +91 8169178256 with your target and we will give you a figure.
Why does my titanium weld look blue?
Blue means oxygen pickup, which means the shielding or purge was inadequate while the weld was still hot. Straw or light gold is generally acceptable; blue, grey or white powdery is not and the joint is usually rejected. Shielding setup is most of what titanium training actually is.
Can you qualify our welders on Inconel for a refinery job?
Yes. Send us the specification, the alloy grade and the number of welders. Nickel alloy work comes up regularly in the refinery and petrochemical belt, and the test can run at our centre or your plant.
Do I need existing welding experience?
Yes, for this one. Alloy work is not where to learn to weld. You should be competent in TIG on stainless or carbon steel first; then this training is about controlling the variables these materials are sensitive to.
Why did our duplex weld pass visual and NDT but still fail the client?
Most likely a ferrite balance or intermetallic problem from heat input outside the specified window. Duplex can look sound and still have lost its corrosion resistance, which is why the specification sets heat input and interpass limits rather than only acceptance criteria for appearance. This is the commonest duplex problem we are called in to investigate.
Can you develop the welding procedure as well as train the welders?
Yes. WPS preparation and PQR qualification for these alloys is part of our consultancy work, and it usually makes sense to settle the procedure before qualifying welders against it.
