A global leader in the manufacturing of safety-critical investment castings.

Giayoung is a specialist investment casting manufacturer delivering complex, high-precision components for global industries that depend on consistency, traceability, and engineered reliability.

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Market Sectors

Fluid Control

Built for fluid and chemical systems where performance is defined by containment, balance, and uninterrupted flow from pumps and impellers to high-pressure transfer equipment operating in corrosive environments.

We supply precision cast components engineered for pressure integrity, corrosion resistance, and certified performance in demanding industrial applications where failure isn’t an option.

Manufacturing is aligned with CE-PED and AD2000-W0 requirements, supported by full NDT inspection, dynamic balancing, and hydrostatic testing to ensure safe, leak-free operation in service-critical systems.

With 850MT capacity and access to 1,000+ alloy grades, we support scalable OEM supply chains for chemical processing, fluid transfer, and high-pressure industrial infrastructure.

Green Energy

The energy transition is putting new demands on every component in the system longer service life, tighter integration, and consistent performance across rapidly evolving technologies in wind, hydrogen, solar, and energy storage.

We manufacture precision cast and machined components designed for this reality, where long-term reliability and stable performance matter as much as initial accuracy.

Production is supported by advanced CNC machining, end-to-end quality control, and full material traceability, ensuring consistency in structure, dimensions, and behaviour across critical energy applications.

With 850MT capacity, access to 1,000+ alloy grades, and verified sustainability practices, we support scalable supply chains for global renewable energy programmes focused on durability as much as decarbonisation.

High Speed Rail

Built for rail systems where performance is measured in reliability over decades not just in initial fit. From high-speed networks to heavy-duty rail infrastructure, where safety, consistency, and uptime are critical.

We supply precision cast and machined components engineered for IT7 accuracy, controlled dimensional stability, and long-term operational reliability in safety-critical transport environments.

Advanced 4-axis and 5-axis CNC machining, combined with Zeiss CMM inspection, ensures repeatable precision and verified compliance with stringent railway standards across every production batch.

With 850MT capacity and access to 1,000+ alloy grades, we support scalable, certified supply chains for structural, drivetrain, and safety-critical rail applications across global infrastructure programmes.

Instrumentation

In measurement-critical systems, performance isn’t a range it’s a fixed point. From scientific instrumentation through to industrial control systems, reliability depends on every component behaving exactly as intended, every time.

We manufacture precision cast and machined components engineered for IT7 accuracy, stable geometry, and consistent repeatability in applications where even minor variation affects system output.

Capability extends to thin-walled sections, micro-features, and complex geometries, where controlled machining and predictable material response are essential to maintaining precision at scale.

With 850MT capacity and access to 1,000+ alloy grades, we support high-precision supply chains with full traceability and certified quality control from initial casting through to final inspection.

Marine

Built for marine environments where saltwater, stress, and time are constant tests from shipbuilding structures to offshore systems operating in harsh, high-corrosion conditions.

We supply certified cast components approved by major classification societies including DNV, Lloyd’s Register, Bureau Veritas, ABS, and CCS, supporting globally regulated marine and offshore applications.

Specialist capability in duplex and super duplex stainless steels ensures reliable performance in aggressive environments, supported by advanced inspection including X-ray, cryogenic testing, and corrosion-critical validation.

With 850MT capacity and access to 1,000+ alloy grades, we support global shipbuilding supply chains with fully traceable, classification-ready components built for long service life at sea.

Nuclear Power

Nuclear programmes demand absolute control over every stage of production from early prototype work through to long-life operational components where traceability and compliance are non-negotiable.

We manufacture certified cast components for nuclear applications in accordance with RCC-M, NB/T, and CNNC requirements, supported by ISO-certified quality systems and tightly governed production processes.

Verification is embedded throughout manufacturing, including witnessed production stages, PT/RT/VT inspection, and fully documented quality assurance designed to meet stringent regulatory and client approval frameworks.

With 850MT capacity and access to 1,000+ alloy grades, we support secure, fully traceable supply chains for nuclear energy programmes requiring sustained compliance and long-term material reliability.

Oil & Gas

Oil & gas environments push components into constant exposure high pressure, aggressive corrosion, and offshore or subsea conditions across upstream, midstream, and downstream systems where reliability directly impacts safety and uptime.

We manufacture certified cast components designed for these demanding service conditions, where stability, corrosion resistance, and long-term performance are as critical as initial dimensional precision.

Production is aligned with recognised international standards including PED, AD2000-W0, NORSOK M650, and NACE MR0175, supported by advanced inspection and testing regimes such as PT, RT, MT, SSC, and cryogenic validation where specified.

With 850MT capacity and access to 1,000+ alloy grades, we support EPC-driven supply chains with fully traceable, high-integrity components engineered for continuous operation in critical service environments.

Testimonials

"We've been working with Giayoung for over 25 years and we've developed over 2,000 products for the UK market together. If you need a reliable and trustworthy investment casting supplier capable of handling highly complex work with a fantastic team to support you – you just found it."

Alex Cameron-Clarke

Director

One Point Two (China) Ltd Purchasing

"We've been working with Giayoung for almost 20 years. Giayoung is supporting more than 140 crucial products for us and our customers in Germany and around the world. We especially value the good collaboration, quick communication and high reliability."

Marvin Eckert

Procurement Manager

Watson-Marlow Fluid Technology Solutions, part of Spirax Group

"For more than 20 years, Dongying Giayoung has been an essential partner in our success here at Klinger Westad. Their consistent, high on-time delivery performance, superior product quality and exceptional response time have been instrumental in our growth in the global valve market. They are a true gem in our global supplier base, and I can highly recommend them to anyone who require a casting supplier in the lost-wax segment."

Thomas Groeterud

Purchasing Director

Klinger Westad AS