Super Optimal 309L-15 Stainless Filler Wire

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SUPER OPTIMAL 309L-15Stainless Steel Electrode – Manufacturer & Supplier

SUPER OPTIMAL 309L-15 is a high-performance stainless steel welding electrode designed for reliable joining of dissimilar steels. This 309 electrode is widely used for welding mild steel to stainless steel and for applications where crack resistance, strength, and toughness are critical. With excellent weldability and stable arc characteristics, it supports consistent weld quality in fabrication, repair, and industrial maintenance work.

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Key Features and Benefits of Superon SUPER OPTIMAL 309L-15

Superon Technik has developed SUPER OPTIMAL 309L-15 to meet demanding welding conditions where standard electrodes often struggle. It is a preferred MS-to-SS welding rod for professionals working with mixed-material joints.

Excellent Weldability: Smooth arc stability ensures easy handling and consistent weld deposition even in challenging positions.
Best In Class Mechanical Properties: Offers strong tensile strength and good elongation, resulting in durable and tough weld joints.
Ideal For Dissimilar Steel Welding: Commonly used as an SS-to-MS welding rod number solution where mild steel is joined to stainless steel.
Extra Low Carbon Content: Helps reduce the risk of carbide precipitation and improves resistance to cracking.
Stable Performance At Room Temperature: Delivers reliable impact strength at normal operating conditions.
Dc + Welding Compatibility: Designed to perform efficiently with DC+ welding current.
Vacuum-Packed Quality: All electrodes are vacuum-packed to prevent moisture pickup and ensure consistent performance.

These advantages make ss welding rod 309 a dependable choice for structural welding and industrial repairs.

Specifications of SUPER OPTIMAL 309L-15

Here are the key mechanical and welding specifications of SUPER OPTIMAL 309L-15.

Product Name	AWS/SFA	Yield Strength N/mm2	Tensile Strength N/mm2	Elongation A5(%)	Impact(J)	Welding Conditions	Unique Feature (All Vacuum Packed)
Superon 309L	E 309L-16	≥350	≥550	≥35	≥47		Extra strong & tough stainless steel electrode for joining dissimilar steels. Highly recommended for welding hard to weld steels. Extra low carbon content.
Super Stainless 309L	E 309L-16	-	600	>35	60		Suitable for welding high temperature steels and as buffer layer before hardfacing. For repairing of machine parts for civil engineering.
SUPER OPTIMAL 309L-15	E309L-15	-	≥550	≥30	60 at RT	DC+	Excellent weldability. Best in class mechanical properties.
SUPER OPTIMAL 309L	E309L-16	-	600	≥35	60 at RT	AC;DC+	Excellent weldability, self peeling slag. Best in class mechanical properties. Best for joining dissimilar steels.
SUPER OPTIMAL 309	E309-16	-	590	38	60		Rutile-basic electrode with an austenitic stainless steel deposit containing 15% ferrite- for welding dissimilar steels as stainless steels to low alloyed steels. Also suitable for welding high temperature steels and as buffer layer before hardfacing.
SUPER OPTIMAL 309Cb	E309Cb-16	-	590	40	75 at RT	AC;DC+	Excellent resistance to chemical corrosion and heat. Weldability with spatter free arc, self -releasing slag.
SUPER OPTIMAL 309LMO-15	E309LMo-15	-	600	35	65		Low carbon basic coated 23Cr 12Ni 2 Mo stainless steel type electrodes, used to weld on AISI 309 & 316L stainless steel and for dissimilar joints between construction, mild steel and stainless steels.
SUPER OPTIMAL 309LMO	E309LMo-16	-	600	35	65 at RT	AC;DC+	Highly crack resistant. Soft fusion, nice aspect of the bead, slag lifts by itself
SUPER OPTIMAL 309MO	E309Mo-16	-	600	35	70	-	Rutile-basic coated 23Cr 12Ni 2Mo stainless steel type electrode, used to weld on AISI 309 & 316 stainless steels and for dissimilar joints between construction, mild steels and stainless steels.

Packaging Details

Normal		Special Packing
Inner Packing	Outer Packing	Special Packing
2 & 5Kg Vac Pack	10 & 20Kg	2Kg/5Kg Plastic Tube

For Plastic Tube pack, the outer pack weight will be same as vac & normal pack
for lbs packing :- 2kg :- 5 Lbs, and 5Kg :- 10Lbs, 10kg :- 20Lbs, 20kg :- 40Lbs
for 2kg = 2x5=10kg
for 5kg = 5x4=20kg

Welding Current: DC+Unique Feature: All vacuum-packed for moisture protection

This 309 welding rod is designed to deliver reliable performance across demanding industrial applications.

Properties of SUPER OPTIMAL 309L-15

Superon SUPER OPTIMAL 309L-15 offers a balanced combination of strength, toughness, and weld quality.

Property	Description
Arc Stability	Smooth and stable arc for controlled welding
Crack Resistance	Low carbon content helps reduce cracking risks
Mechanical Strength	Produces strong and durable weld joints
Weld Appearance	Uniform bead profile with good fusion
Impact Toughness	Maintains strength at room temperature
Moisture Protection	Vacuum packing prevents hydrogen-related defects
Application Flexibility	Suitable for fabrication and repair work