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Welding

More than 30 years of experience welding steel structures, rail vehicles and pressure equipment.

12 theaviest weldment
4 × 3,9 × 12 mlargest weldment
EXC 3steel structures to EN 1090
30+years of welding experience

What we weld

Welding processes

135 · 131 · 141 · 111 · 121

5 processesDetails →
Size and weight

4 × 3,9 × 12 m

up to 12 tDetails →
Thickness and materials

1 – 200 mm

FM1 – FM5Details →
Steel structures

EN 1090-1, -2

EXC 3 · CEDetails →
Railway vehicles

EN 15085-2

+ DÚ approvalDetails →
Welding quality

EN ISO 3834-2

WPS · WPQRDetails →

Inspection and technology

Preheating

to WPS

Details →
Non-destructive testing

VT · MT · PT · UT · RT

Details →
Documentation

per order

Details →
Own welding school

EN ISO 9606-1

Details →

Have a weldment or structure? Send us your drawing: novsteel@novsteel.sk

Welding processes

135 MAGmetal active gas – our main production process
131 MIGmetal inert gas welding
141 TIGtungsten inert gas – root passes and visible welds
111manual metal arc welding
121submerged arc welding – long and heavy welds

Size and weight

Max. sizeH 4,000 × W 3,900 × L 12,000 mm
Smaller sectionslength up to 15,000 mm
Max. weight12 000 kg

Thickness and materials

Thickness1 to 200 mm depending on material grade
Materialsnon-alloy and low-alloy steels (FM1 – FM4) and stainless steels (FM5)

Steel structures

StandardEN 1090-1, EN 1090-2
Execution classup to EXC 3
MarkingCE based on certified factory production control

Railway vehicles

StandardEN 15085-2
Scopewelding of railway vehicles and components, repairs of freight wagon superstructures
ApprovalDÚ – welding of rail vehicles

Welding quality

SystemEN ISO 3834-2 – comprehensive quality requirements
Procedureswelding to WPS, qualified by WPQR
Weldersqualified to EN ISO 9606-1
Supervisionwelding coordination to EN ISO 14731

Preheating

Preheatingfor thick plates and sensitive materials to WPS and EN 1011
Interpass temperaturemonitored and kept during welding
Whyprevents cold cracking and ensures weld joint properties

Non-destructive testing

VTvisual testing
MTmagnetic particle testing
PTpenetrant testing
UTultrasonic testing
RTradiographic (X-ray) testing
Extentas required by the customer, execution class and applicable standard

Documentation

Materialcertificates to EN 10204 (3.1)
WeldingWPS, WPQR, welder qualifications
InspectionNDT reports and dimensional report

Own welding school

Advantagewe train and qualify our own welders – qualified staff for your order

More about the school