Answers.Body: <p>I had two of these bricks in red, one is broken (one of the side-caps dropped off): there's just a piece of galvanized iron/steel in it.</p>
  
  <p>My blocks were bought about 19 years ago, so maybe they changed the weight to an other/cheaper material in the meantime, but I don't think so.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-10-26T18:43:17.620Z
Answers.Text: This seems like it's correct. I'm going to do what Zhaph said and test it with a magnet.
Answers.UserDisplayName: Pubby
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-10-26T20:34:55.323Z
Answers.Text: i'm not 100% sure it's iron/steel, but it pretty much looks like because it's galvanized, wich won't make much sense on other metals. i'm looking forward to the results of your magnet-test.
Answers.UserDisplayName: oezi
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-10-26T05:47:35.807Z
Answers.LastActivityDate: 2016-01-11T21:40:58.807Z
Answers.LastEditDate: 2016-01-11T21:40:58.807Z
Answers.UserDisplayName: oezi
Answers.Body: <p>I'm fairly sure it's one or two pieces of iron, but I would need to check with someone who actually opened one. You can easily check that it's a <em>ferrous</em> metal if it attracts magnets.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-10-26T15:17:23.717Z
Answers.Text: Non-ferrous metals aren't magnetic... so a lack of attraction doesn't rule out the possibility of a metal being used ;)
Answers.UserDisplayName: Zhaph - Ben Duguid
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-10-27T07:32:51.330Z
Answers.Text: Indeed, I oversimplified it, I guess I'll edit that in. But magnetic attraction will confirm it's a ferrous metal, and since I was pretty sure it's iron (as [confirmed](http://bricks.stackexchange.com/q/159) by oezi), I didn't want to bother thinking about other metals.
Answers.UserDisplayName: Joubarc
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-12-14T07:13:23.180Z
Answers.Text: Lego magnets stick to them just fine.  It takes two magnets to lift one brick.
Answers.UserDisplayName: Mark
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-10-26T05:01:48.283Z
Answers.LastActivityDate: 2011-10-27T06:55:47.927Z
Answers.LastEditDate: 2011-10-27T06:55:47.927Z
Answers.UserDisplayName: Joubarc
Answers.Body: <p>I did the unthinkable!  ...I had to know.</p>
  <p>I opened one of my two weighted bricks.  One of the two ends has a glued-on cap that I've cut around using a utility knife.</p>
  <p><img src="https://i.sstatic.net/LHuig.jpg" alt="enter image description here" /></p>
  <p>The piece of metal it contains fits almost perfectly in the cavity.  I don't know metals but it has a rainbowish kind of sheen to it.  Here's a close-up:</p>
  <p><img src="https://i.sstatic.net/3rePG.jpg" alt="enter image description here" /></p>
  <p>I'm now reassembling it back and super glueing it.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-11-22T16:35:47.773Z
Answers.Text: +1, for defacing a LEGO brick to provide an answer. I imagine you could weigh it to find it's mass.
Answers.UserDisplayName: Ambo100
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-12-06T10:43:55.553Z
Answers.Text: Since when is defacing a LEGO brick worth +1? Heretic!
Answers.UserDisplayName: Joubarc
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2012-02-08T17:59:01.927Z
Answers.Text: Makes sense that these would be galvanized steel since they were often used to balance the floating boats (e.g. 314, 4005, 4010, 4025, etc.) and could be reasonably expected to get wet and rust leaking out of the brick would look weird.
Answers.UserDisplayName: Robert C. Barth
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2012-03-01T15:40:25.880Z
Answers.Text: I literally gasped when I saw this.
Answers.UserDisplayName: Matthew Crumley
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-09-11T18:31:48.287Z
Answers.Text: I don't know whether to upvote this answer for being correct, or downvote for cutting lego bricks apart. This sort of experiment would never get past the ethics panel in my household.
Answers.UserDisplayName: Mr. Shiny and New 安宇
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-01-08T11:12:09.230Z
Answers.Text: I have one that had been opening itself by the side for like... forever. And I didn't use any violent mean for it to reveal its shiny insides. Note that the side can be clipped back. I thus always thought that this was meant to be possible to open/close this container.
Answers.UserDisplayName: Lulhum
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-05-12T14:04:29.100Z
Answers.Text: I did this back in the mid 90s because I too had to know. Now that we all know, I wonder if you could replace it with something even heavier. Are there any safe denser metals that aren't too expensive? A lead alloy maybe? Just under 2 ounces isn't all that much weight.
Answers.UserDisplayName: l008com
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-10-30T15:00:41.977Z
Answers.Text: @l008com Go for tungsten. Almost twice as heavy as lead without the health hazards
Answers.UserDisplayName: pcantin
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2011-11-02T00:34:03.083Z
Answers.LastActivityDate: 2024-05-18T14:51:12.767Z
Answers.LastEditDate: 2024-05-18T14:51:12.767Z
Answers.UserDisplayName: pcantin
Body: <p>I own a few bricks that contain a weight inside of them. 52g according to Lego.</p>
  
  <p><img src="https://i.sstatic.net/1LN5L.jpg" alt=""></p>
  
  <p>What exactly is inside of <a href="http://www.bricklink.com/catalogItem.asp?P=73090b" rel="noreferrer">these bricks</a> that makes them heavy?</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2011-10-26T06:59:21.860Z
Comments.Text: Are you talking about these [lego train weight parts](http://en.bricker.ru/parts/73090a/) ?
Comments.UserDisplayName: Riduidel
Tags: <piece-information><disassembly><weight>
Title: What is inside the "weight element" brick?
UserDisplayName: Pubby
ThreadText: # What is inside the "weight element" brick?
  
  (Asked by: username_0 on 2011-10-25)
  
  I own a few bricks that contain a weight inside of them. 52g according to Lego.
  
  ![](https://i.sstatic.net/1LN5L.jpg)
  
  What exactly is inside of [these bricks](http://www.bricklink.com/catalogItem.asp?P=73090b) that makes them heavy?
  
  **Tags:** piece-information, disassembly, weight
  > **Comments:**
  > **username_1**: Are you talking about these [lego train weight parts](http://en.bricker.ru/parts/73090a/) ?  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_6 on 2011-11-02. Score: 40 | Accepted answer
  
  I did the unthinkable! ...I had to know.
  
  I opened one of my two weighted bricks. One of the two ends has a glued-on cap that I've cut around using a utility knife.
  
  ![enter image description here](https://i.sstatic.net/LHuig.jpg)
  
  The piece of metal it contains fits almost perfectly in the cavity. I don't know metals but it has a rainbowish kind of sheen to it. Here's a close-up:
  
  ![enter image description here](https://i.sstatic.net/3rePG.jpg)
  
  I'm now reassembling it back and super glueing it.
  
  > **Comments:**
  > **username_7**: +1, for defacing a LEGO brick to provide an answer. I imagine you could weigh it to find it's mass.  
  > **username_3**: Since when is defacing a LEGO brick worth +1? Heretic!  
  > **username_8**: Makes sense that these would be galvanized steel since they were often used to balance the floating boats (e.g. 314, 4005, 4010, 4025, etc.) and could be reasonably expected to get wet and rust leaking out of the brick would look weird.  
  > **username_9**: I literally gasped when I saw this.  
  > **username_10**: I don't know whether to upvote this answer for being correct, or downvote for cutting lego bricks apart. This sort of experiment would never get past the ethics panel in my household.  
  > **username_11**: I have one that had been opening itself by the side for like... forever. And I didn't use any violent mean for it to reveal its shiny insides. Note that the side can be clipped back. I thus always thought that this was meant to be possible to open/close this container.  
  > **username_12**: I did this back in the mid 90s because I too had to know. Now that we all know, I wonder if you could replace it with something even heavier. Are there any safe denser metals that aren't too expensive? A lead alloy maybe? Just under 2 ounces isn't all that much weight.  
  > **username_6**: @l008com Go for tungsten. Almost twice as heavy as lead without the health hazards  
  
  ---
  
  ### Answer by username_2 on 2011-10-26. Score: 13
  
  I had two of these bricks in red, one is broken (one of the side-caps dropped off): there's just a piece of galvanized iron/steel in it.
  
  My blocks were bought about 19 years ago, so maybe they changed the weight to an other/cheaper material in the meantime, but I don't think so.
  
  > **Comments:**
  > **username_0**: This seems like it's correct. I'm going to do what Zhaph said and test it with a magnet.  
  > **username_2**: i'm not 100% sure it's iron/steel, but it pretty much looks like because it's galvanized, wich won't make much sense on other metals. i'm looking forward to the results of your magnet-test.  
  
  ---
  
  ### Answer by username_3 on 2011-10-26. Score: 6
  
  I'm fairly sure it's one or two pieces of iron, but I would need to check with someone who actually opened one. You can easily check that it's a *ferrous* metal if it attracts magnets.
  
  > **Comments:**
  > **username_4**: Non-ferrous metals aren't magnetic... so a lack of attraction doesn't rule out the possibility of a metal being used ;)  
  > **username_3**: Indeed, I oversimplified it, I guess I'll edit that in. But magnetic attraction will confirm it's a ferrous metal, and since I was pretty sure it's iron (as [confirmed](http://bricks.stackexchange.com/q/159) by oezi), I didn't want to bother thinking about other metals.  
  > **username_5**: Lego magnets stick to them just fine.  It takes two magnets to lift one brick.  
  
  ---
  
  