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Stainless Steel Welding



These pics come from a new aerospace test facility that they are constructing at the University of Notre Dame. The SSF-6 is working great.


welding stainless steel

I am attempting to make all of these fittings air tight as they are used for pressure measurements. We can¹t have any leaks. I had very little warpage of my base metal and I think this is really going to work out very well.


silver solder high strength metal repair

Thank you,


David Hipskind
Turbomachinery Technician
The University of Notre Dame
Institute for Flow Physics and Control (FLOWPAC)
The Hessert Laboratory for Aerospace Research


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Stainless Steel

Although stainless steel is one of the most widely used metals, stainless steel welding can be extremely challenging. Cutting, drilling, soldering, and welding stainless steel is difficult mainly because the metal is a poor heat conductor and has a high rate of thermal expansion. It also reacts badly to excessive heat, causing it to warp. Thankfully, we have a unique line of products that can help make stainless steel soldering and brazing tasks easier.

Super Alloy 1, SSQ-6, and SSF-6 silver solder are all designed for use with stainless steel. Allowing for easier and more effective repair and welding jobs, many of our products melt at high temperatures and can be used on a variety of metals, such as brass, copper, bronze, cast iron, and stainless steel. For soldering and brazing tasks, or for welding stainless steel, SSQ-6 and SSF-6 can also be used with any heat source and can last for long periods with minimal care.

Compare Super Alloy 1 SSF-6 SSQ-6
Melting temperature 350°F 1150°F 1050°F
Bonding strength 20,000 PSI Over 70,000 PSI Over 85,000 PSI
Sizes available 3/32", 1/8" 1/16" 1 Oz Syringe
Flux Honey liquid, 2 year shelf life Flux coated Mixed in, 9  month shelf life
Color match? No Good Good
Contains cadmium? Yes No No
Recommended torch Any Any Any
Works in all positions Yes Yes Yes
Will clean oxidized stainless No Yes No
Will wet to burnt stainless No Yes Yes
Will join stainless to brass, steel, copper, cast iron No Yes Yes
Can work as a jig No No Yes
Works for heat sensitive parts Yes No No


30 Steel Electrode

Unparalleled Versatility

 This one electrode welds virtually every type of steel in existence.



For more information on stainless steel repair, and to watch instructional videos, click the links below:

Stainless Steel Videos

Soldering Stainless Steel to Aluminum

Soldering Stainless Steel to AluminumNew!

How to join aluminum to stainless steel. Super Alloy 1 can also be used to join pot metal, zinc die cast, lead, bronze, steel, copper, or brass--in any combination.

Aluminized Stainless Steel Welding

Brazing Aluminized Stainless Steel with Super Alloy 5

Stainless Steel Brazing with 56% Silver Solder

Two pieces of stainless steel are silver soldered with a propane torch at 1150 degrees.

Silver Solder on Steel Brass Copper Stainless Steel Using SSF-6 Silver Soldering Rod

SSF-6 Silver Solder brazes stainless steel to copper, brass, or steel... in any combination. Can be successfully applied using a propane torch, oxyacetylene, mapp gas or a natural gas torch.

Stainless Steel Brazing with 56% Silver Solder

Brazing stainless steel tubing to copper tubing with SSF-6 silver solder using a hand held propane torch.

Stainless Steel Brazing with 56% Silver Solder

We used SSF-6 to braze stainless steel tube to a steel plate at over 70,000 PSI with a propane torch..

How to Braze or Solder Brass to Stainless Tubing Using a Propane Torch

How to braze brass tubing to stainless steel tubing with a high strength silver solder at 1150 degrees and only using a propane torch.

Silver Soldering Brass Plate to Stainless Steel Plate with SSF-6 Flux Coated Brazing Rod

Joining a brass plate to a stainless steel plate at 1150 degrees with no warpage of the parent metal.

Stainless Plates Silver Soldered with Muggyweld SSF-6 Brazing Rod

We are using SSF-6 Silver Solder to join two stainless steel plates together at 1150 degrees. The braze was made with a very small amount of silver solder, it doesn't need much as the alloy is over 70,000 psi. A propane torch was the gas used in this video and the solder is flux coated.

Stainless Steel Welding

We use SSF-6 to solder stainless to stainless with an oxyacetylene torch. After finishing, clean up the flux with water and a wire brush.

How to Repair Steel with Silver Solder

SSQ-6 is the perfect solution for jobs like this--parts are balancing, and if a rod were used they could easily be knocked over but the silver solder almost glues them together and acts like a jig when heated.

Silver Solder Paste: How to Silver Solder

This deep sea pole has a broken eyelet. We make the repair with SSQ-6 and a propane torch, as well as Cool Blue Heat Paste.

Silver Brazing a Brass Nut to a Stainless Steel Bolt with SSQ-6

A stainless steel threaded bolt is soldered to a brass nut using SSQ-6 silver solder paste in syringe form.

Joining a Stainless Plate to Copper Tubing with Silver Solder

Using SSQ-6 silver solder paste, Mike silver solders a stainless steel plate to a piece of copper tubing.

Stainless Articles

SSF-6 at the University of Maryland Physics Department

We used Muggyweld SSF-6 to solder 18-8 Stainless Steel Socket Head Cap Screws to 23 copper end caps.


Muggy Weld at Notre Dame Aerospace Program

These pics come from a new aerospace test facility that they are constructing at the University of Notre Dame.


Silver Solder Stainless Steel to Brass

SSQ-6 silver solder paste is ideal for brass, copper, stainless steel, bronze, cast iron, copper nickel, chrome moly, steel, and german silver in any combination.


Silver Solder Brass to Stainless Steel

SSQ-6 is commonly used to silver braze brass to stainless steel, due to its ease of use and convenient syringe applicator. Muggy Weld customers have been utilizing SSQ-6 for projects requiring paste inside or under the metal to metal contact, in areas where rods may not flow.


Brazing a Stainless Steel Plate to Copper Tubing with SSQ-6

There are many industrial, domestic, and small business uses for brazing copper to stainless steel. In this article, we will use the SSQ-6 silver solder paste to solder a stainless steel plate to copper tubing