Sustainability at Delmàs
a conviction, not a slogan
At Delmàs, we see sustainability as a way of manufacturing, not as a section of the annual report. It is a conviction we have held since 2006 , and it translates into concrete operational decisions: the origin of the energy we use, the way we make the most of every metre of material, and the traceability with which we document each delivery.
We are a family company founded in 1956. More than 65 years manufacturing precision welded and calibrated steel tubing have taught us that responsibility, towards the customer, the material and the environment, is what sustains a long-term relationship. That is why this page is not here to impress with grand statements, but to explain clearly what we do today and where we want to keep improving.
Five commitments, one way of manufacturing.
01 · Environmental100% renewable energy and efficient manufacturing
02 · SocialA family company built around people
03 · Good governanceTransparency delivered with every order
04 · Quality and innovationCertified precision in every delivery
05 · ObjectivesWhere we want to keep improvingNeed real data for your ESG report?Let's talk 100% renewable energy and efficient manufacturing
2 photovoltaic installations · Self-consumption100% renewable energy since 2006
All the energy consumed in our manufacturing process comes from renewable sources. It is not carbon-credit offsetting: it is the real energy that powers every metre of tubing we manufacture.
We also operate two on-site photovoltaic installations that generate electricity for self-consumption at our plant. On-site generation reduces our dependence on the grid and allows us to offer more direct energy traceability.
Data for your carbon footprint and ESG reports
For many of our customers, the carbon footprint of their supply chain is an audited indicator and a homologation criterion. We can provide information on the energy origin of our production so you can include it in your carbon footprint reports and in your large-account sustainability questionnaires. When the supplier is responsible, that responsibility becomes part of your own data.
Circular economy and resource efficiency
Manufacturing sustainably also means not wasting. The way we produce and deliver reduces material use and waste across the chain:
Made-to-measure (non-stock) manufacturing
We produce the exact diameter and wall thickness each application needs, instead of imposing a standard size. This avoids over-dimensioning the part and reduces surplus material.
Coil format and cut-to-length
On automated automotive lines, this format can eliminate up to 15% of waste compared with conventional supply.
Replacing seamless tube
Our PRECISE range offers an alternative to seamless extruded tube at a cost between 40% and 80% lower, with shorter lead times, optimising resource use without compromising performance.
Factory-to-factory delivery
We take care of packaging and logistics so the material reaches the customer's line directly, avoiding intermediate handling, damage and rework.
Steel is also a fully recyclable material, which reinforces the circularity of our products throughout their service life.
Good governance and business ethics
Full material traceabilityTransparency delivered with every order
Our understanding of ethics starts with something very concrete: what we promise, we document. Every order leaves the plant with its product certificate, which attests to the chemical composition, mechanical properties and verified dimensions of the batch, in accordance with EN 10204. Material traceability is complete.
Specifications agreed, not imposed
Before manufacturing, we define a technical specification sheet together with the customer, which they review and validate. That document is the master reference for the order: it prevents misunderstandings and guarantees that we deliver exactly what was agreed.
Commitment to standards
We work in accordance with the main international standards in our sector (EN 10305, ASTM 513, SAE, JIS), and we issue the certificates each homologation process requires, regardless of the destination market.
Certified precision in every delivery
An in-house laboratory behind every tube
Quality is not declared: it is measured. We have a laboratory with testing equipment that carries out dimensional checks (inner and outer diameters, wall thickness), mechanical testing (tensile strength, hardness) and application-specific tests. The full process follows four phases: technical consultancy, specifications, manufacturing and certification.
- 01Technical consultancy
- 02Specifications
- 03Manufacturing
- 04Certification
Innovation in the service of efficiency
More than six decades refining welding and calibration in small diameters have led us to develop capabilities that reduce cost and waste for the customer:
High-precision calibration and mirror bore
Makes it possible to replace materials that are more expensive and more energy-intensive to produce.
Integration service
Transforms the tubing into a finished, ready-to-assemble part, reducing the customer's supplier base and handling steps.
Shape and finish engineering
Non-circular profiles and decorative finishes that adapt the material to the application, instead of forcing the customer to adapt their design.
Each of these capabilities has a sustainable reading: less rework, less transport between suppliers and less wasted material.
Improvement objectives for the coming years
Keeping a credible commitment also means pointing to where we want to go. In the coming years, we intend to work on areas such as:
Measure and communicate
Move towards verifiable quantitative data on our environmental footprint that we can make available to our customers.
Formalise our environmental commitment
Assess the certification of our environmental management system as independent backing for what we already do.
Keep optimising material use
Reduce waste in our own process and help our customers reduce theirs.
Support our customers in their decarbonisation goals (Scope 3)
Provide the information their audits and homologations require.
Sustainability that fits with yours
Sustainability, like our tubing, is made to measure. Ours is designed to fit into yours: with energy from renewable sources, manufacturing that reduces waste, and the traceability your reports and audits need.
If your company values working with a responsible supplier, and needs real data to prove it, let's talk.
Talk to the teamTell us about your application and we'll get back to you in 24 h
We have been manufacturers since 1956. Tell us what you need and our technical team will review your case, with no obligation and no minimum order quantity.
- Technical response in 24 h
- Physical sample to your exact specification
- Cost comparison vs. your current supplier
Prefer to discuss it over the phone? +34 938 424 707
A family company built around people
Family company since 1956
What sets a family company apart is closeness. When a customer contacts Delmàs, they speak with people who know the product and who get personally involved in solving whatever is needed. That trust, built project by project, across relationships that in many cases last for years, is the foundation of how we work.
Flexibility as respect for the customer
We do not impose rigid terms. We accept quantities that other manufacturers turn down, we negotiate reasonably, and we adapt to the lead times and formats each customer needs. We understand that behind every order there is a production line and a team relying on us to deliver.
A product at the service of people
Our tubing is part of products that millions of people use every day, and where safety is non-negotiable: hospital beds that move silently, baby strollers that weigh as little as possible without compromising strength, automotive components that have to work first time. In these cases, precision is also a form of responsibility.