Dished End Supplier in Chennai,India – Trusted Manufacturer of ASME-Certified Heads
Specialised division of KRR Heavy Engineering — engineering excellence since 1976.
​KRR Dished Ends, a specialised division of KRR Heavy Engineering, carries forward a legacy that began in 1976. Certified by ASME, PESO, PDIL, and EIL, and accredited across 12 countries including the USA, Russia, and EU nations, KRR exports to 30+ countries — advancing the vision of Make in India and Atmanirbhar Bharat.
We are among India’s leading dished end supplier in Chennai,India , supplying to oil & gas, petrochemical, fertilizer, and power industries worldwide.
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Our dedicated dished-end facility is equipped with advanced flanging and forming machinery, producing full geometries — ellipsoidal, hemispherical, torispherical, and conical heads. With deep-tech forming expertise, we work across carbon and stainless steels and exotic alloys such as Hastelloy, Inconel, Monel, Titanium, Tantalum, and Zecor®, ensuring performance in corrosive, high-pressure environments.
Our Dished End Range
Torispherical Dished ends
Reliable crown–knuckle geometry for robust pressure performance and smooth weld fit-up.
Ellipsoidal Dished ends
Popular 2:1 profile that balances capacity, wall thickness, and overall height.
Hemispherical Dished ends
Best-in-class stress distribution for high-pressure service and long lifecycle.
Flat Dished ends
Economical and accurate for low-pressure duty and storage tanks with clean fit-up.
Segmental Dished ends
Petal-formed for oversized diameters; sequencing maintains roundness and stability.
Conical Dished ends
Tapered profile supports smooth discharge and controlled flow in process equipment.
Material We Handle
Carbon Steel
The workhorse for process equipment—strong, weldable, and cost-efficient for a wide range of heads. Ideal for standard pressure vessel and tank applications where performance and lead time matter.
Super Duplex
Engineered for extreme corrosion conditions with exceptional mechanical strength.
Preferred for seawater, sour service, and high-reliability projects demanding longer service life.
Monel
Excellent resistance to seawater and certain chemical services with robust mechanical properties.
A dependable choice for marine, offshore, and specialised process applications.
Tantalum
One of the best choices for extreme acid resistance in the toughest chemical processes.
Applied when failure risk must be engineered out and corrosion margins must be maximised.
Stainless Steel
Built for corrosion resistance, clean service, and long life in aggressive operating environments.
We fabricate heads with stable forming quality and controlled finishing for critical industries.
Inconel
Designed for high-temperature strength and oxidation resistance under harsh duty cycles.
Used in demanding thermal and corrosive services where conventional alloys lose stability.
Nickel Alloys
For high-integrity performance in corrosive and high-temperature operations.
We handle forming and fabrication with the process control these alloys demand.
Aluminium
Lightweight, corrosion-resistant, and suitable for specific process and storage requirements.
Ideal when weight reduction and handling advantages support the overall system design.
Duplex
High strength with superior resistance to chloride corrosion and stress corrosion cracking.
Chosen for offshore, marine, and chemical duties where stainless alone is not enough.
Hastelloy
A proven material for severe corrosion environments, including strong acids and mixed media.
Selected when reliability is non-negotiable and material compatibility is the first priority.
Titanium
Outstanding corrosion resistance with high strength-to-weight for critical chemical media.
Used where purity, longevity, and aggressive service conditions require a premium solution.
​Clad Materials
A smart balance—corrosion-resistant liner with a strong structural backing for cost efficiency.
Chosen to meet performance targets without over-specifying solid alloy construction.
Why EPCs and OEMs Choose KRR Dished Ends
Proven Engineering Heritage
With roots dating back to 1976, KRR brings decades of pressure-equipment manufacturing expertise into every dished end we produce. Our engineering team understands the interaction between head geometry, material behavior, pressure loading, and fabrication constraints—ensuring every head performs exactly as designed throughout its service life.
Large-Diameter & Heavy-Thickness Capability
We manufacture dished ends in diameters up to 15 meters and thicknesses exceeding 100 mm, enabling fabrication of large reactors, hydrogen vessels, refinery columns, and cryogenic tanks. This scale and forming precision allows EPCs to source complete vessel heads from a single qualified supplier.
International Codes & Certifications
Our dished ends are produced under globally accepted quality systems and codes including ASME, PED, PESO, PDIL, EIL, and multiple international inspection agencies. This ensures smooth acceptance for export projects, third-party inspections, and statutory approvals worldwide.
Complete Range of
Dished Ends
Standard Dished End Profiles
We manufacture torispherical heads, ellipsoidal heads, hemispherical heads, flanged and dished heads, flat heads, and conical heads in carbon steel, stainless steel, duplex, alloy steel, and nickel-based alloys. These heads are widely used in pressure vessels, heat exchangers, distillation columns, separators, and storage tanks.
Custom-Engineered Dished Ends
For specialized projects, we design and manufacture dished ends based on pressure ratings, corrosion conditions, cyclic loading, and transport constraints. From hydrogen service and cryogenic vessels to high-temperature reactors and aggressive chemical environments, our custom heads are engineered for maximum reliability.