§ Standards
Status
CURRENT
Last verified
2026-09-06
CEN · STANDARD
EN
ISO 3834-2
Quality requirements for fusion welding — Comprehensive requirements
Overview
What this standard covers
The welding quality tier most often certified alongside EN 1090-1 for EXC3 and EXC4 fabrication.
The welding quality tier most often certified alongside EN 1090-1 for EXC3 and EXC4 fabrication.
Who uses it
Fabricators, clients and certification bodies agreeing the level of assurance required.
Details
Reference data
- Standard number
- EN ISO 3834-2
- Title
- Quality requirements for fusion welding — Comprehensive requirements
- Organisation
- CEN
- Country
- European Union
- Region
- European Union
- Subject
- Quality & certification
- Subcategory
- Welding quality
- Type
- STANDARD
- Application
- Contractual
- Availability
- Paid
- Status
- CURRENT
- Roles
- certification standard
- Last verified
- 2026-09-06
Official source: standards.cencenelec.eu
Related
Standards used alongside this one
- EN 1090-1
Conformity assessment of structural components
Route to CE marking for fabricated steel components, requiring certified factory production control from a notified body.
European UnionQuality & certificationCURRENTPaid
- BS EN ISO 3834-2
Quality requirements for fusion welding — Comprehensive quality requirements
The comprehensive tier of welding quality requirements, normally required for EXC3 and EXC4 work, covering welding coordination, records and control of consumables.
United KingdomQuality & certificationCURRENTPaid
- AISC Certification
AISC Certification Programs for Fabricators and Erectors
Audited certification of building, bridge and component fabricators and of steel erectors, frequently mandated in US project specifications.
United StatesQuality & certificationCURRENTFree
- BCA requirements
Building and Construction Authority structural steel requirements
Singapore's plan approval, accredited fabricator and independent checking requirements for structural steelwork.
SingaporeQuality & certificationCURRENTFree
- BIS Certification
BIS Standard Mark (ISI) product certification
Product certification marking conformity to the relevant Indian Standard, applied to structural steel under quality control orders.
IndiaQuality & certificationCURRENTFree
- BS EN 1090-1
Execution of steel and aluminium structures — Conformity assessment of structural components
The conformity assessment route for structural components, covering factory production control and the declaration of performance behind CE or UKCA marking.
United KingdomQuality & certificationCURRENTPaid
Sourcing, review and use
Status
Editorial reference information compiled and maintained by the StructuralSteel.ai team. It is not a design certificate and is not issued under an engineer's seal.
Last reviewed
Calculations
Any figures produced on this page are indicative estimates for early sizing and comparison only — they are not engineered design outputs.
References
Final member selection, loading, connection design, fire design, fabrication and compliance must be verified for your specific project by a suitably qualified structural engineer. Standards are revised; check the edition in force where the work is built.
Verification
StructuralSteel.ai provides technical reference information and links to authoritative sources. Project specifications, applicable legislation, current standards editions and requirements of the responsible engineer or authority should always be verified before fabrication or supply.