Lincoln Electric's Stainless Consumables Family

Diameters / Packaging

Diameters
33 lb (15 kg) Steel Spool
0.035 in (0.9 mm) ED035137
0.045 in (1.1 mm) ED035138

Blue Max® 409Nb

MIG (GMAW)

CLASSIFICATIONS:
AWS ER409Nb

BLUE MAX® MIG 409Nb Wire is a ferritin stainless steel ideal for typical application on Automotive Exhausts, Catalytic Converters under typical applications, designed to weld type 409 and 409Ti base materials (Stainless)

DETAILS

BLUE MAX® MIG 409Nb GMAW MIG Wire designed for the addition of niobium improves corrosion resistance and promotes a ferritin micro-structure. Q2 Lot® - Certificate showing actual chemistry available online, all welding position typical wire composition. See test results disclaimer.

Features

  • Designed to weld type 409 and 409Ti base materials - Typically used in automotive exhaust fabrication
  • Ferritin stainless with additional niobium improves corrosion resistance and promotes a ferritin 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 applications
  • Maintenance and Repair

Welding Positions

  • All

Shielding Gas

  • 98% Ar / 2% O₂

Disclaimers

Warning -

Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

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

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

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