Vianko Steel is a specialized manufacturer of flanges and Fittings for critical piping applications, serving EPC contractors, consultants, and industrial end users worldwide.

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Precision Flanges & Valve Fittings for Global Projects

Manufacturer of industrial flanges and pipe fittings for EPC contractors, refineries and power projects globally.

ISO Certified Manufacturing for Critical Applications

Delivering project-ready components with complete material traceability and third-party inspection support.

Vianko Steel manufacturing facility
Vianko production line
About Us

Precision Flanges & Fittings for Critical Applications

Vianko Steel is a specialized manufacturer of flanges and Fittings for critical piping applications.

The company focuses on supplying dimensionally accurate, standard-compliant components for high-pressure and high-temperature service conditions.

  • Vianko Steel serves EPC contractors, consultants, and industrial end users across sectors such as oil & gas, petrochemical, refineries, power generation, and chemical processing.
  • Our products are manufactured in accordance with ASME / ANSI and applicable international standards, ensuring compatibility with global project specifications.
  • Strong emphasis is placed on quality consistency, material traceability, and clear product identification through permanent marking.
  • Vianko Steel is committed to delivering reliable piping components that support safe, long-term operation in demanding industrial environments.
  • The company combines technical understanding, controlled processes, and customer-focused execution to meet project and schedule requirements.

To manufacture high-quality steel elbows and flanges with precision, reliability, and on-time delivery for global industrial projects.

  • Full Material Traceability
  • PMI & MTC Documentation

To become a globally trusted manufacturer of high-quality steel elbows, flanges, and piping components, recognized for engineering excellence, precision manufacturing, and long-term partnerships in the oil & gas, petrochemical, power, and infrastructure sector.

  • Global Project Compliance
  • Continuous Process Improvement
Products

Precision Flanges & Valve Fittings

Industrial-grade flanges and fittings manufactured to ASME, ANSI, DIN and EN standards.

BLIND

A blind flange (sometimes called a blank flange) is a s...

Slip-On (SO)

Slip-On (SO) flanges are low-hub, cost-effective piping...

SOCKETWELD

A socket weld flange is a metal pipe flange used primar...

THEADED

A threaded flange (also called a screwed flange) is a p...

Our Services

Industrial Capabilities for Project Execution

Every component is engineered to make procurement seamless, reduce installation risks, and maintain uncompromising product quality from the forge to the field.

High-precision CNC turning and facing manufacture flanges and elbows with accuracy. We maintain strict tolerance on gasket surfaces, ensuring full compliance with ASME B16.5, B16.9 piping standards.

Quality assurance includes PMI verification, ultrasonic thickness and hydro testing. Each elbow and flange is supplied with complete 3.1 MTC documentation, verified through third-party inspection agencies.

We supply critical piping components to EPC contractors across oil, gas, refinery, petrochemical, and offshore industries. Our logistics network ensures compliant packaging and timely delivery to sites.

Our manufacturing workflow supports faster production schedules and consistent product availability. Strong forging inventory allows us to deliver custom elbows quickly during shutdowns and maintenance.

Need support for your next project? Get in touch today

We deliver precision-engineered flanges and fittings for critical piping systems worldwide.

+91 9892775336 Mon - Sat : 08.00 - 18.00
Our Process

See How It Works

Quality & Compliance

At Vianko Steel, quality is not a checkpoint — it is a system.

01
Raw Material Verification

Strict incoming inspection of all raw materials before production begins.

02
PMI Testing

Positive Material Identification carried out as per applicable grade standards.

03
Dimensional & Pressure Testing

Every component verified for dimensional accuracy and pressure integrity.

04
Third-Party Inspection (TPI)

Independent TPI support available to meet client and project requirements.

05
Mill Test Certification

Complete MTC documentation provided with every shipment.

06
Full Material Traceability

End-to-end traceability from mill source to final delivery.

ISO Certified Operations

We adhere to international standards including ASTM, ASME, ANSI, DIN and EN specifications — ensuring every product meets global project requirements.

Why Choose Us

Certified Standards & Trusted Delivery Worldwide

ISO certified manufacturing for EPC contractors, refineries and power projects — backed by complete material traceability and third-party inspection support.

  • Full material traceability & MTC
  • Third-party inspection support
  • Global delivery to 30+ countries
  • ISO 9001:2015 certified facility
ISO 9001:2015 Certified
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Years of Experience
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Client Satisfaction
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Projects Completed
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Countries Served
FAQ's

Frequently Asked Questions

We work with EPC teams, procurement companies and industrial clients who require technical compliance, complete traceability and dependable dispatch.

We offer a comprehensive range of flanges (Weld Neck, Slip-on, Blind, Socket Weld, and Lap Joint) and elbows (Long Radius, Short Radius, 45°, 90°, and 180°). These are available in various material grades, including Stainless Steel, Carbon Steel, and Alloy Steel.
All our products are manufactured in strict accordance with global standards, including ASME/ANSI (B16.5, B16.9), DIN, EN, and API specifications to ensure seamless integration into international projects.
Yes. Every shipment is accompanied by a comprehensive MTC (3.1/3.2). Our products also undergo rigorous quality checks, including PMI testing, ultrasonic testing, and hydro-testing to ensure 100% reliability.
Absolutely. We specialize in "Near-Net" forging and precision machining, allowing us to produce customized flanges and elbows tailored to your specific technical drawings and unique project tolerances.
For standard sizes in stock, we offer immediate dispatch. For customized manufacturing or large-scale project packages, our typical lead time ranges from 10 to 15 days, depending on the material grade and complexity.
Yes. Our components are specifically engineered for the demanding conditions of the Oil & Gas, Petrochemical, and Power industries. We use high-grade materials and heat treatment processes to maximize corrosion resistance and structural integrity.
We maintain a transparent quality process and fully welcome inspections from world-renowned agencies such as TUV, BV, SGS, and Lloyds, as well as client-appointed inspectors.
We understand the cost of downtime. Vianko maintains a strategic inventory of raw forgings and semi-finished components, enabling us to offer Fast Turnaround services for emergency shutdowns and urgent maintenance needs.

Make An Enquiry

Have a project requirement? Share the details and our team will get back to you.

Trust & Compliance

Certifications & Quality Standards

ISO 9001 - 2015

ISO 9001 - 2015

ISO 45001 - 2018

ISO 45001 - 2018

ISO 14001 - 2018

ISO 14001 - 2018