Process-generated fume and gas
Welding, cutting, gouging, and related hot work can create fumes and gases that need practical control, not just a generic note in the pack.
Fabora resources
COSHH and welding consumables for steelwork teams.
For steelwork businesses, COSHH is not just about a folder of product sheets. It is about understanding what harmful substances are present, how people are exposed during the real task, what controls are meant to work, and how the materials are stored, handled, and reviewed on the ground.
Short answer
Steelwork teams often need to think about both supplied substances and process-generated exposure. That can include welding fume, gases, anti-spatter products, cleaners, coatings, grinding dust, and the way cylinders or consumables are handled around the job.
- Safety data sheets are useful, but they do not replace reviewing how the material is actually used in your workshop or on site.
- The exposure route matters: breathing it in, getting it on the skin, splashing it in the eyes, or creating harmful fumes during the process.
- A COSHH register is most useful when it connects SDS information, welding consumables, gases, controls, and job-specific RAMS wording.
- COSHH review is strongest when it connects the substance, the task, the control method, and the people actually doing the work.
General guidance only. Your business still needs competent COSHH review around the actual substances, process, quantities, location, and exposure routes on the live job.
Practical summary
What to take from this page
Steelwork teams often need to think about both supplied substances and process-generated exposure. That can include welding fume, gases, anti-spatter products, cleaners, coatings, grinding dust, and the way cylinders or consumables are handled around the job.
General guidance only. Your business still needs competent COSHH review around the actual substances, process, quantities, location, and exposure routes on the live job. For official detail, use the source links later on this page.
What sits under COSHH
What steelwork businesses often need to think about
Some hazardous substances arrive in a container. Others are created by the job itself. Both need to be thought through properly. The related welding risk assessment template linked later on this page shows how fumes, gases, consumables and COSHH points can feed into the wider job assessment. The toolbox talk topics guide can help explain those exposure controls in plain English during team briefings.
Purchased chemicals and aerosols
Cleaners, anti-spatter products, paints, primers, degreasers, and similar items often need review around storage, use, ventilation, and contact risk.
Consumables and residues
Wires, rods, fluxes, coatings, and the residues left behind by the process can all change what exposure routes and housekeeping controls matter most.
Handled gases and cylinders
Shielding gases and related equipment bring handling, storage, connection, and leak-management points that should be part of the practical review.
Practical review
What a workable COSHH review usually needs to cover
The practical review is normally where teams get value. It connects the paperwork to the actual task.
What the substance is and where it appears
List the supplied products and process-generated hazards that are relevant to the task, then connect the SDS details, COSHH register, and what the work itself produces.
How people can be exposed
Think about inhalation, skin contact, eye contact, accidental contamination, and whether exposure changes with the location or duration of the work.
What the actual controls are
Ventilation, LEV, handling rules, PPE, storage, labelling, segregation, spill or leak response, and housekeeping all need to be realistic for the workface.
Who needs information and training
The team using the materials should know the key hazards, controls, and what to do if the task changes or something goes wrong.
Consumables and handling
Consumable and handling points that often deserve extra attention
These are common steelwork examples where a quick generic note can be too light.
Gas cylinders, hoses, and regulators
Storage, securing, transport, connection, and leak awareness need to fit the actual work area, whether that is a workshop bay or a mobile site task.
Wires, rods, fluxes, and anti-spatter products
The material itself may be straightforward, but the way it is used, heated, sprayed, or stored can still change the exposure and housekeeping picture.
Painted, galvanised, or contaminated steel
The condition of the steel can change the fume and surface hazard profile, so the review should not stop at the standard welding process alone.
Cleaners, sprays, and skin exposure
Steelwork teams often focus on inhalation first, but skin and eye exposure from sprays, liquids, and contaminated gloves can also be part of the real risk.
Common mistakes
Common COSHH mistakes on steelwork jobs
The usual problem is not having no paperwork. It is relying on paperwork that never really gets tied to the actual job.
Treating the SDS as the full answer
The product sheet helps, but the team still needs to think about how the substance is being used, heated, moved, or stored in the actual work area.
Ignoring process-generated exposure
Some of the important harmful substances are created during the work, such as welding fume, rather than arriving in a labelled container.
Weak control around storage and handling
Poor cylinder control, unlabelled decanting, badly stored aerosols, or mixed material storage can create avoidable problems before the task even starts.
No review when materials change
A new spray, coating, consumable, or steel condition can change the exposure picture. The review needs updating when the real job changes.
Official guidance
Relevant official sources
These links point to the underlying official material. This page is a practical summary, not a replacement for those sources, competent review, or legal advice.
HSE: How to carry out a COSHH risk assessment
Useful HSE overview on identifying hazardous substances, process-generated exposure, exposure routes, and practical assessment points.
HSE: COSHH and welders - key messages
Useful HSE context around welding-related hazardous substances, including fume, gases, fluids, and confined-space concerns.
HSE: Welding fume - protect your workers
Useful HSE overview where welding fume is part of the COSHH picture for the job.
HSE: Safe use of compressed gases in welding and flame cutting
Useful for wider guidance on gas handling, storage, and use around welding and allied processes.
FAQ
Common questions
Short answers on practical use, review expectations, and where this guidance stops.
Important note
Final review, suitability, and approval still remain with the customer's business and the people responsible for the job.
Does COSHH only apply to substances that come in containers?
No. It also covers harmful substances created by the work itself, such as fumes, gases, dusts, vapours, and similar process-generated exposure.
Can a safety data sheet replace a job review?
No. The SDS is useful input, but the business still needs to review how the substance is used, who is exposed, and what practical controls are needed in the real task.
What should be checked before using a new consumable or spray?
Review what it is, how it will be used, the likely exposure routes, the storage and handling requirements, and whether the existing controls and PPE still make sense.
What should a welding workshop COSHH register include?
A practical register should list relevant welding consumables, gases, sprays, cleaners, coatings, SDS details, storage points, exposure routes, current controls, PPE, review dates, and who has checked the information for the actual workshop or site task.
How does COSHH relate to RAMS?
COSHH information often feeds into the RAMS pack so the team can see the relevant substances, controls, handling points, and precautions inside the wider job method.
Related reading
Continue from here
These links keep the topic moving, either into related guidance or into the Fabora RAMS product pages.
Welding fume control and LEV for fabrication workshops
Useful if the main control question is welding fume, extraction, and workshop ventilation.
Welding Risk Assessment Template
Useful where welding fumes, gases, consumables and COSHH items need to feed into the wider risk assessment.
Welding Risk Assessment Checklist
Use the free checklist tool to review welding fumes, gases, consumables, PPE, equipment and COSHH controls before drafting RAMS.
Toolbox Talk Topics for Welding and Steelwork
Useful where welding fumes, gases, consumables and exposure controls need to be explained in plain English.
RAMS Template UK
Useful if you want a practical RAMS structure that can carry COSHH, PPE, substance, and control prompts into the job pack.
PUWER checks and workshop machinery controls
Useful where COSHH controls overlap with machinery use, guarding, cleaning, maintenance, or workshop supervision.
RAMS guide for steel fabricators and site welders
Useful if you need the wider picture on how COSHH information fits into a workable RAMS pack.
Fabora RAMS
See how Fabora RAMS helps teams structure COSHH items, controls, and repeat drafting inputs more clearly.