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ER309LSi Stainless Steel S-S TIG Welding Wire 1.6mm,2.4mm,3.2mm, 5kg/box

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better arc stability smoother bead appearance Higher resistance to intergranular corrosion;

ER309LSi Stainless Steel S-S TIG Welding Wire 1.6mm,2.4mm,3.2mm, 5kg/box

per Bag

Product Features

Better arc stability;
Smoother bead appearance;
Higher resistance to intergranular corrosion;
Radiographic quality welds;
High Si content improves wetting characteristics；

Product Details

Specifications:
AWS A5.9
ASME SFA 5.9
UNS S30988

Approved by: ABS BV CCS DNV GL LR NK RINA CE DB

Description: ER309LSi is similar to ER309L except it contains a higher silicon content which gives it improved wetting action. This alloy is good for general purpose GMAW welding, providing a smooth weld profile in welding applications of stainless steel plate and sheets. This alloy could have a somewhat higher crack sensitivity than other alloys with a lower silicon content, if the dilution of the base metal creates a fully austenitic weld or a low ferrite. ER309LSi contains a lower carbon content which allows for a reduction in the likelihood of intergranular carbide precipitation, and it has a higher resistance to intergranular corrosion. ER309LSi is best used in the welding of food service applications and beverage tanks.

Typical applications would include those of ER309 and ER309L.

Typical Mechanical Properties:

Ultimate Tensile Strength(MPa)	Offset Yield Strength (MPa)	Elongation (%)
550	410	35

Typical Chemical Properties :

C	Mn	Si	Cr	Ni	Mo	S	P	Cu
≤0.03	1.00-2.50	0.65-1.00	23.00-25.00	12.00-14.00	≤0.75	≤0.03	≤0.03	≤0.75