W.GRUBE
On course since 1974

Welcome to GRUBE GmbH, the heating and annealing technology company
On this website we would like to introduce you to our company and our services – characterized by experience, responsibility and the ambition to deliver top performance every day.
Maintaining our competitive position and meeting the ever-increasing demands of the market is not just a challenge for us, but a clearly defined goal. At GRUBE GmbH, our customers' satisfaction is our top priority. Quality, safety, and environmental and health protection are integral parts of our corporate philosophy – especially in a time when processes are becoming increasingly complex and the demands for transparency and reliability are constantly rising.
With a comprehensive quality and health, safety, and environment (HSE) management system, certified according to DIN EN ISO 9001:2008 and SCCP, we ensure that our services meet the highest standards. The systematic identification, assessment, and minimization of risks is as much a part of our core values as the responsible handling of data protection and data security. Continuous improvement is not just a buzzword for us, but a lived reality.
Over the past few years, we have successfully completed numerous demanding projects worldwide – from the Marl Chemical Park and international pipeline projects on the Black Sea to deployments in Bavaria, Algeria, and beyond. Wherever exceptional quality, precision, and flexibility are required, GRUBE GmbH is a reliable partner.
Our areas of operation are diverse and range from, among other things:
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Pipeline and pipeline construction
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Plant, apparatus and machine construction
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Pressure vessel and large tank construction
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Shipbuilding, vehicle and aircraft construction
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Energy generation (nuclear, coal, wind power and biogas plants)
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Petrochemical, metallurgical and steel industries
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Turbine, boiler and heat exchanger construction
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Medical technology as well as high-pressure and gas pipelines
…and many other industrial applications.
GRUBE GmbH, a company specializing in heat and annealing technology, stands for experience, technical competence and worldwide readiness – whenever the highest quality makes the difference.
Our current expertise
for industry
Heat treatment service:

Thermal stress relief, also known as stress-relief annealing, is one of the most important processes for reducing residual stresses in welded components. Targeted heat treatment reduces stresses, improves dimensional accuracy, and sustainably increases the service life of the components.
As an experienced partner in heat treatment and annealing technology, we offer a comprehensive range of professional heat treatment processes, individually tailored to the material, component, and application. Our services include, among others:
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Preheating
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Stress-relief annealing
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Starting
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Effusion annealing
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Diffusion annealing
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Normalize
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Solution annealing
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Drying out
With state-of-the-art technology, qualified specialists and many years of experience, we guarantee the highest quality, process reliability and reproducible results – reliably and flexibly, even in demanding projects.
Diverse tasks - one contact person.
Our areas of operation include, but are not limited to:
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Pipeline construction
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Pressure vessel
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Pipeline construction
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Shipbuilding
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Plant construction
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Large container construction
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Conveyor technology
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boiler construction
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Biogas plants
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Medical technology
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Nuclear power plants
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High-pressure lines
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Gas pipelines
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Vehicle construction
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steel industry
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Steel construction
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Heat exchanger
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Mechanical engineering
Container construction
Wind turbines
Petrochemicals
Turbine construction
aircraft construction
Coal-fired power plants
Apparatus construction
and much more

Qualified and Certified:

• VdTÜV guideline
• AD leaflet HP 7/1
"Heat treatment, general principles"
• KTA 3201.3, point 8
"Heat treatment"
• AD leaflet HP 7/2
"Heat treatment of ferritic steels"
• AD leaflet HP 7/3
"Heat treatment of austenitic steels"
• SCC
• DIN EN ISO 9001
• DIN EN ISO 17663


