316LSi stainless-steel GMAW (MIG) welding alloy has similar usage as 316L, but the 0.65-1.00% silicon content improves wash and wetting behavior in the gas shielded welding processes. Conforms to AWS A5.9.

Stainless Welding Wire 

APPLICATION:

Specification:

Welding Positions:

NOMINAL COMPOSITION:

Features：

AWS A.59 ER 316LSi

AWS/ASME SFA - 5.9       ER316LSi

EN ISO 14343 - A              G 19 12 3 LSi

TS EN ISO 14343 - A         G 19 12 3 LSi

Stainless steel 316LSi MIG welding wire welds low carbon molybdenum-bearing austenitic alloys
Lower carbon content (.03% max.) resists carbide precipitation that can cause weld corrosion
Higher 0.65-1.00% silicon content improves the wetting and washing behavior of the weld metal, yielding a smoother bead in the gas-shielded welding process
88,000 psi tensile strength (as welded)
58,000 psi yield strength (as welded)
37% elongation (as welded); 68% reduction of area (as welded)
85 HRB Rockwell B hardness (as welded)
160 HB Brinell hardness (as welded)
95 ft./lb. @ room temperature Charpy V (as welded)
Conforms to ANSI/AWS A5.9 & ASME SFA 5.9 ER 316LSi

TYPICAL MECHANICAL PROPERTIES AS WELDED:

Carbon .03% max.       Chromium 18.0-20.0%
Nickel 11.0-14.0%        Manganese 1.0-2.5%
Copper .75% max.       Silicon .65-1%
Phosphorus .03% max.  Sulfur .03% max.
Molybdenum 2.0-3.0% Iron Balance

Normal Ferrite Range 5-12

Yield Strength (psi)  58,000                     Elongation 37%
Tensile Strength (psi)  88,000                 Reduction of Area 68%
Charpy V 95 ft./lb. room temp.               Brinell Hardness 160 HB

Rockwell B Hardness  85 HRB

RECOMMENDED WELDING PARAMETERS:

*GMAW (MIG) Parameters (DC Reverse Polarity) Electrode Positive Short-Circuiting transfer
Wire Diameter            Amps             Volts               90% Helium + 7.5% Argon +      Wire Feed (ipm)

.030                             60-125          17-22                              20-25                                  150-430

.035                             75-160          17-22                              20-25                                  120-400

.045                             100-200        17-22                              20-25                                  100-240

*GMAW (MIG) Parameters (DC Reverse Polarity) Electrode Positive Spray transfer
Wire Diameter             Amps             Volts                      Argon / 1-2% O2                   Wire Feed (ipm)
.030                            160-225           24-28                             25                                      440-650
.035                            180-300           24-29                             30                                      430-500
.045                            200-450           24-30                          30-35                                    220-400
1/16                            225-500           24-32                             40                                      110-210

3/32                            250-600           24-32                             50                                        50-80