Castings since 1774Castings in stainless, high alloy steels and nickel-based alloys from 1kg to 3000kg. Darwins — Corrosion Resistant Castings & Components Since 1774

Darwins - Castings since 1774

Darwins is a leading European manufacturer of high integrity sand castings. Based in Sheffield, we have been producing castings of outstanding quality since 1774.

IndustriesWe have a track record of working closely with clients in a diverse range of industries:

• Oil and gas• Power generation• Processing for the chemical,

pharmaceutical and food industries• Desalination, fire protection and water

processing

ApplicationsWe cast difficult alloys to high integrity specifications for safety-critical applications:

Pumps and Compressors• Impellers: single entry and double entry

shrouded, open, vane wheel• Casings and Covers: vacuum pump,

centrifugal, multistage, chemical• Pump bowls• Diffusers

ValvesWe provide components for all types of valve ranging in size from 15mm to 1 metre, covering the most exacting pressure ratings. These include:

• Gate• Globe• Check• Ball • Butterfly

Casting specificationsWe provide components to industries with the most demanding product requirements whether that’s product shape, design, material or technical specification.

We supply our castings to precise specifications in a cast, proof-machined or finished machined state, in weights ranging from 1 to 3000 kgs.

Darwins - Castings since 1774

Materials technologyWe use the best high quality raw materials from certified sources to produce the following grades:

• Austenitic and martensitic stainless steels in all forms• Duplex and super-duplex steels• Super austenitic steels • Heat and wear-resistant steels• Carbon and low alloy steels• Hastelloy™, Inconel™ and other

nickel-based alloys

FacilitiesWe offer a complete service for all stages of production, from initial concepts, drawings and design through to manufacturing, machining, testing and certification. Our processing facilities include:

• An onsite pattern shop for pattern manufacture and maintenance

Induction melting units: 2 tonnes, 1 tonne and 500kgs

• Automated and manual moulding• Heat treatment facilities: 3 gas, 1 electric furnace,

recirculating water quench tank• Fettling and welding

Quality and testingWe have an exceptional reputation for the quality of our engineering and service. We manufacture to national and international specifications, including British Standard, BS, EN, DIN, ASTM and NORSOK MDS D46. We hold accreditation for our quality management system and ISO 9001 certification.

Non-destructive testingWe offer a complete range of non-destructive testing services and certifications, including:

• Radiographic examination • Ultrasonic examination • Liquid penetrant inspection. • Magnetic particle inspection • Positive Material identification (PMI) • Dimensional inspection • Visual examination • Chemical analysis • Mechanical, corrosion and impact testing • Metallographic services

CertificationEN10204 certification can be issued for all the above services including third-party witness requirements, such as Lloyds, DNV and TÜV. Please contact us if you require a copy of a certificate.

Service delivery and emergency responseWe are highly responsive and offer short lead times. Our fast track service enables us to turn around the production of parts rapidly in special circumstances and emergencies. We do this because we know and understand the requirements of the industries that our clients operate in.

Contact our sales department to discuss your requirements.

Darwins Holdings Ltd, Sheffield Road, Tinsley, Sheffield, S9 1RL, UK

Tel: +44 (0)114 244 8421Fax: +44 (0)114 2561775E-mail: info@darwinsholdings.co.ukWeb: darwinscastings.com

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