Identification
| Physical form | fume |
|---|---|
| Signal word | None |
| Pictograms | None |
| Routes of exposure | inhalation |
Hazard classification
Hazard statements
Workplace exposure limit
No workplace exposure limit is listed in EH40/2005. Exposure must still be reduced as low as is reasonably practicable and adequately controlled.
COSHH status
HSE safety alert, February 2019: all welding fume is carcinogenic. Local exhaust ventilation is expected indoors and RPE where LEV alone does not control exposure, including outdoors. There is no single WEL for the fume; component limits from EH40 apply: manganese 0.2 mg/m³ inhalable and 0.05 mg/m³ respirable, chromium VI 0.01 mg/m³ (0.025 mg/m³ where process generated), nickel 0.1 mg/m³ soluble and 0.5 mg/m³ insoluble, iron oxide fume 5 mg/m³ with a 10 mg/m³ short term limit.
Common uses
- MIG, TIG, MMA and oxy-fuel welding
- Flame cutting
- Grinding after welding
First aid
Inhaled: fresh air. Flu like symptoms after welding galvanised steel (metal fume fever) need medical advice.
In an emergency call 999. For advice call NHS 111. Always follow section 4 of the safety data sheet for the product you have.
Storage
Not applicable.
Sources
- HSE EH40/2005 Workplace exposure limits (2020 edition), Table 1. Checked 8 September 2026.
- HSE Welding fume: protect your workers. Checked 8 September 2026.
- HSE Health risks from welding. Checked 8 September 2026.
- HSE safety alert STSU1-2019: mild steel welding fume. Checked 8 September 2026.
We do not host or copy manufacturer safety data sheets. Ask your supplier for the current sheet for the product you use.