Lincoln Electric's Stainless Consumables Family

Blue Max® MIG 409Nb

MIG (GMAW) Wire

AWS: ER409Nb

Ferritic stainless with additional niobium improves corrosion resistance and promotes a ferritic micro-structure

DETAILS

Blue Max® MIG wire is designed to perform exceptionally at high wire feed speeds

Features

  • Designed to weld type 409 and 409Ti base materials - Typically used in automotive exhaust fabrication
  • Ferritic stainless with additional niobium improves corrosion resistance and promotes a ferritic micro-structure
  • For the best results, welding must be done in a low heat input procedure not recommended for multi-pass applications

Typical Applications

  • Automotive Exhaust
  • Catalytic converters under typical appiications
  • Maintenance and Repair

Welding Positions

  • All

Shielding Gas

  • 98% Ar/ 2% O2

Service Information

BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page

See test result disclaimer

CONFORMANCE

CONFORMANCES SPECIFICATION CLASSIFICATION
AWS AWS A5.9 ER409Nb

BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page

See test result disclaimer

WIRE COMPOSITION

Classification %C %Cr %Cu %Mn %Mo %N %Nb %Ni %P %S %Si
ER409Nb Requirement 0.08 max. 10.5 - 13.5 0.75 max. 0.8 max. 0.50 max. 10xC - 0.75 0.6 max. 0.04 max. 0.03 max. 1.0 max.
Typical Result 0.03-0.04 11.4-11.7 0.02-0.06 0.6 0.04 max. 0.02-0.04 0.45-0.53 0.3 0.02 0.003 max. 0.6

BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page

See test result disclaimer

TYPICAL OPERATING PROCEDURES

Diameter Shielding Gas Voltage
volts
Approx. Current
amps
0.035 in (0.9 mm) 98% Ar / 2% O2 26-29 160-210
0.045 in (1.1 mm) 98% Ar / 2% O2 28-32 180-250