I had no idea there were so many types of bronze. Great educational video! It's even more impressive when we know you actually make art out of it the metal instead of just ingots😁

Mad props for using a clip from that brilliant SNL George Washington sketch 😂

Thanks for making this video, I hadn't reaised that disolving silicon in molten copper was quite so quick and easily achievable!

Awesome video, I have made all sorts of bronze in the past ,but silicon bronze is by far the best and that's basically all I use these days. I buy my ingots from a supplier as it's getting increasingly harder to buy silicon metal.

best tutorial i've ever seen

I used to make silBronze belt buckles with rods and an acetylene torch. Love the material.

Great video. Si bronze is my Choice for casting also...and always in Kilograms, just so much easier!

@KingfishStevens-di9ji

4 ай бұрын

Imperial equation. 6 percent of 10 pounds...10 X 16 X 6 = 9.6 oz.

Silicon Bronze is incredibly useful.

Good info. I love your humerous out clips.

i love the allways postive vibe you radiate man😁

Great explanation on the bronzes. I’ve been using Silly bronze for years, great alloy gif sculptures, easy to cast, easy to weld, but more difficult to work than other softer bronze alloys but compensated by the foundry benefits.

Metallurgy is so complex and so fascinating; there's just so much to learn about it. I'm not surprised that you got people trying to correct you in the comments.

Love it ... very informational!

Love it as always people will always try to put others rite, it's great you corrected them and a great way to do it.

Very nice!!

Very cool and educational video. I always wondered how they added silicon to aluminum to make it more fluid.

at the explanation of manganese dissolving in copper I just hit subscribe button Great Video !!!

I had a customer on Etsy leave me a 1-star review and essentially call me a fraud for selling Aluminum Bronze (C95200)... the alloy analysis was clearly labeled in the photos and description, btw. He said bronze is made of tin and copper ONLY! I had to send him an 85/15 tin bronze ingot before he changed it to a 4-star...

@lundgrenbronzestudios

4 ай бұрын

😆 hopefully this video will make people aware that there is more out there to explore.

Good stuff. Virtually all modern copper alloys seem to be referred to as bronzes despite "traditional" bronze being a tin alloy. This is why I get so frustrated that the trend in recent years has been to refer to beryllium bronze as "beryllium copper". It's like calling steel "carbon iron".

Fantastic!

Nice job. I’ve seen silicon bronze ingots for sale but never seen someone make it with a home setup so assumed it wasn’t doable. I’ll have to try that myself somewhen. 👍

I have found aluminum bronze to work really well and I love the gold color.

@lundgrenbronzestudios

4 ай бұрын

I like it too. I do find that is shrinks a little more than other bronzes though.

@robertfaucher3750

4 ай бұрын

@@lundgrenbronzestudios i hear this can be reduced by mixing other metals in the alum bronze

@stamasd8500

4 ай бұрын

@@lundgrenbronzestudios not only it shrinks way more, but also has a tendency to develop microcracks and bubbles because of dissolved gas which is released by the aluminum as it cools and solidifies

Silicon is used in casting alloys as is increases fluidity, e.g.: aluminium casting alloys most usually contain silicon. And, as you pointed out, silicon is used in bronzes brasses, etc.

grate to work with. i use 3% and 2%.

@lundgrenbronzestudios

4 ай бұрын

Is there a specific reason for those ratios.

You missed a few bronzes in the enumeration at the end. Antimony bronze and bismuth bronze. Well the latter isn't much of a bronze (just like lead bronze isn't really a thing because lead and copper don't dissolve in one another, the lead stays as separate droplets dispersed throughout the copper mass - bismuth does the same). But antimony bronze has some pretty interesting properties and colors. I did some work with it. For instance, if you want a bronze that is close in color to silver, about 15-18% antimony in copper will do that. It is even rumored that at a certain percentage of antimony in that range (and perhaps some heat treatment) the metal color can turn to blue. I did a little experimenting with that but never got actual blue color.

@aressilverfox

4 ай бұрын

Blue color happens in a certain range of temperature. At 480 degrees Fahrenheit, steel turns brown. At 520 degrees Fahrenheit, steel turns purple. At 575 degrees Fahrenheit, steel turns blue. At 800 degrees Fahrenheit, steel turns grey. For each kind of metal or alloy will be a different temperature ^^

@KingfishStevens-di9ji

4 ай бұрын

Also iron bronze. And Cunifer, copper nickel iron alloy used for automotive brake lines.

Specifically came here to learn how to make Silicon Bronze because I knew of Tin Bronze and Aluminum Bronze, learned about many other kinds that sound just as interesting.

It would be interesting to see if your ingot by way of open pour had any porosity issues- Just a curiosity for sure- but overall awesome video- Bravo!

Love your videos! I've been playing with 95% copper/5% Silicon, but would like to get some Manganese to make my own Everdur. Where did you get your Manganese from?

@lundgrenbronzestudios

3 ай бұрын

I got it from Alibaba of all places.

Thanks for mentioning colour match - had fun trying to get a good colour match on some copper jewellery. Do you happen to have a recomendation for brazing materials for copper that DO get a nice colour match?

@lundgrenbronzestudios

4 ай бұрын

I really don’t do any brazing so I’m not to knowledgeable on that. I know for some metal types people with use the sprus they cut off as welding rods to ensure the color matches. But that’s different than brazing.

Maybe I would like to try this someday, but I already have way too many projects to work on. I still need to set up a workshop.

I think you were generous to describe people saying that Bronze is an alloy of Copper and Tin as 'not wrong.' Perhaps you were just trying not to cause offence, but the truth is they are wrong. It's like saying that a big cat is a Lion. A lion is a big cat, but that's not the same. If I might make one minor suggestion - would you consider some safer footwear? I'm not sure exactly what the rules are in a professional foundry but I know that they take the risk of spillage very seriously and I doubt that sneakers are allowed.

thanks

Everdur bronze is such an amazing metal to cast with. Flows SO well into the thinnest things with the silicon in there. I wonder what happens if you push the % of that up higher?

@lundgrenbronzestudios

4 ай бұрын

I believe the metal starts to get brittle with too much Si.

Can you make a video about how to make icosahedrite? It would be very interesting!

@lundgrenbronzestudios

4 күн бұрын

Maybe but I’ve never heard of that before.

Can we use the Silicon powder?

gently whispers in your ear: "1% germanium" if you know, you know. hahaha lol

As I understand it, slag is Flux+impurities. Dross is impurities skimmed without flux. Have you tried putting a KCl flux on your bronze? I like a small amount as it provides an O2 barrier (especially when dealing with more reactive metals like aluminum.)

@lundgrenbronzestudios

4 ай бұрын

I’ve tried borax but I don’t use it often. I’m not very knowledgeable on fluxes.

@mevk1

4 ай бұрын

Not recommended to use flux with silicon bronze - just melt, skim and pour.@@lundgrenbronzestudios Making silicon bronze requires a cover flux(brown glass, borax, examples)

@stamasd8500

4 ай бұрын

@@lundgrenbronzestudios borax works well in my experience with copper alloys, except for aluminum bronze (borax reacts with aluminum in molten state). For alloys containing aluminum, my go-to flux is an equimolar part of NaCl and KCl (58 parts NaCl plus 75 parts KCl). That mix forms an eutectic that has lower melting point than either of the components alone.

@stamasd8500

4 ай бұрын

@@mevk1 silicon is reactive with oxygen when red hot, and a significant part of it will be lost to oxidation forming silicon dioxide aka sand. It's good practice to add an oxygen barrier before adding the silicon.

@lundgrenbronzestudios

4 ай бұрын

@@stamasd8500 that’s good to know. And makes a lot of sense.

Can we make alloy with Cu, P and Si?

Non tin bronzes have been used for thousands of years it was always used interchangeably almost any alloy made mostly of copper was called bronze the only outlier in english is brass.

Do have any opinion on aluminum bronze?

@lundgrenbronzestudios

4 ай бұрын

I like it. But I don’t use it much because it does shrink a little more.

@someonenamedbob

4 ай бұрын

@@lundgrenbronzestudios I've heard its a bit more difficult to cast with. Just curious about things like bubbles and whatnot.

Ah the joy of metric (says he, currently designing in imperial and with schedule pipe) 😁😎

When melting pure copper using a flux cover may be advised?

@jagboy69

4 ай бұрын

Break up a brown beer bottle and float the glass on top of the metal. As you keep adding to the melt, slowly slip it down the side of the melt to not disturb the cover.

@lundgrenbronzestudios

4 ай бұрын

Is that just to keep the air away from the metal so it doesn’t absorb gasses? I didn’t think flux was that important with bronze?

@jagboy69

4 ай бұрын

Exactly, the glass just keeps the air off the copper. When you pour your newly made bronze, have someone hold the floating glass back and you can pour from underneath it. Or skim it off, your call.

@jagboy69

4 ай бұрын

Fluxes aren't necessary when melting bronze. Making it and melting it are 2 different things. Melting straight copper is a pain in the ass which is why I don't mess with it.😒

@mevk1

4 ай бұрын

Found a link for DIY bronze alloy recipes (youtube deletes, but you can google Internet Archive (c.w. amen sand casting .pdf) For tin bronze and several other bronzes the fluxes consists of a Charcoal cover, and less than a percent of 15% phosphor/copper shot added after copper is melted, and shot added again after tin and lesser zinc/lead are added. Other fluxes mentioned for brass include: glass, borax, salt, bone ash, soda ash, plaster of paris, sea coal, fine coal, whitening, etc.

Dang, if they're mad about silicon bronze, wait till they hear about aluminum bronze.

Alu nickel bronze!

Silicon is recognized as a metalloid. But I understand the need to leave that out of this video. 😂

Can a guy buy a sculpture (casting) of the Wapiti that you show on here?

@lundgrenbronzestudios

4 ай бұрын

I have an Impala that I can sell you.

@jackrichards1863

4 ай бұрын

Thank you for the offer, and very considerate of you, sir. I must decline however. I am very interested in the (red deer) Monarch of the Glen to add to my collection of cast figurines.

I don't think we can make the Cu-Si alloy easy like this.

@lundgrenbronzestudios

Ай бұрын

I mean just did it in the video so….

Bronze=Copper+Anything!

@DragonAtelier

4 ай бұрын

Hey there, but well not too much because you will enter the "brass" kinda thing ;)

A lot of people apparently were very confident in their limited knowledge.

Wait the internet/comment warriors were wrong...... NO SAY IT ISN'T SO!

@lundgrenbronzestudios

4 ай бұрын

😆

Until Sil-bronze costs more than my wax, I refuse to make the stuff. ;-)

@lundgrenbronzestudios

4 ай бұрын

I usually buy it but I wanted learn a bit about metallurgy.

They are entirely wrong. Bronze refers to copper based alloys.

Sili-wrong no-tin bronze!? ...and now my tongue is shtuck in my tooths. 😬 I enjoy when a silicone youtuber makes a thousand know-it-alls eat bronze crow. 😂 Hmmm. Aren't we here to watch and learn? I wonder how many attention seekers are going to troll their "knowledge" in this videos comments? 🤡