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For welding heat resistant 22-25% chromium â 12-13% nickel stainless steels such as 309/309L to itself, to other austenitic Cr â Ni grades such as 304L, 308L, 310, 316L, 321 or 347 as well as martensitic grades such as 410, 420, 431, and ferritic stainless grades such as 430, 442, and 446; all of these stainless steel grades can be welded to each other or to mild and carbon steels.
The maximum carbon content of less than 0.03% preserves the intergranular corrosion resistant properties of the weld deposit and weld zone, yielding x-ray quality welds.
Common applications of 309L stainless include welding of dissimilar steels or overlaying unalloyed structural steels found in furnace parts, kiln linings, heat treatment containers, forgings and castings in chemical, petrochemical, power generation and pharmaceutical industries.
Select the right wire form the menu. Available Sizes: 0.030", 0.035" and 0.045" - Spool Weight: 33 Lb or 27.5 Lb
For shielding gas use 100% Argon or Argon/Helium for greater penetration and higher speeds
Size:0.030" - (33 Lb)
ER309L - WIRE - MIG (GMAW) - STAINLESS STEEL AWS A5.9 Welding Positions: All INTRODUCTION: High-alloy solid wire electrode, annealed and layer wound, excellent welding characteristics thanks to high Si content, suitable for dissimilar joints and buffer layers, maximum operating temperature 300 Â°C USES: Austenite-ferrite joints (dissimilar), cladding, corrosion-resistant layers on non-alloyed construction steels, buffer layers. CHEMICAL COMPOSITION (%): Chemical Composition C Mn Si Cr Ni Requirement ?0.030 1.00~2.50 0.30~0.65 18..00~20.00 11.00~14.00 Typical test result 0.023 1.90 0.42 19.12 12.59 Chemical Composition Mo P S Cu Requirement 2.00~3.00 ?0.030 ?0.030 ?0.75 Typical test result 2.59 0.009 0.008 0.28 WELDING PARAMETERS (DC+): Diameter (mm) ?0.8 ?1.0 ?1.2 Welding Current (Amps) 70~150 100~200 140~220 NOTES: 1. Shield gas: Must ensure not to operate with impurity shield Gas, Recommended Rate of mixed gas: Ar + 1-3% O2. 2. Operation flow rate of shield gas: 20-25L/min. 3. Electrode extension: 15-25mm 4. The welding should be operated in clean surface without rust, moist, oil contamination and dust. 5. To avoid bubbles protect from wind its speed reach 1.5 m/s. The above parameters are for reference purpose and depend on diverse factors. Run tests, evaluate and set your welding parameters before starting the welding job.