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Dwarf Fortress => DF Suggestions => Topic started by: 0x517A5D on November 05, 2007, 08:58:00 pm

Title: No-carbon steel
Post by: 0x517A5D on November 05, 2007, 08:58:00 pm
Since we now have nickel, aluminum, and copper, and could easily have cobalt from the cobaltite stone, how about allowing us to make maraging steel?
http://en.wikipedia.org/wiki/Maraging_steel

We'd probably still need coke/charcoal to make the pig, but on a no-coal, low-tree map, this type of steel could save the day!

I think this steel would be great for armor, being both strong and tough.  However it doesn't hold an edge well.  (That's probably too detailed anyway.)

0x517A5D

Title: Re: No-carbon steel
Post by: Sparksol on November 05, 2007, 09:50:00 pm
From my poking in the raws, it'd be easy enough to mod in right now, and even make it not for weapon use, if I'm reading these right.
Title: Re: No-carbon steel
Post by: THLawrence on November 05, 2007, 10:03:00 pm
Editing the raws to make no carbon steel is easy. I'm currently trying to mod in pottery until people take interest in the jam mod again. I can make clay out of ...

Granite.

Getting there.

But low carbon steel would be easy. However from the article it seems nickel would be necessary. Would you be willing to have a reaction at 1 nickel bar, 4 iron bars to make 5 steel bars?

code:
 
[REACTION:STEEL_MAKING]
[NAME:make steel bars (Nickel)]
[SMELTER]
[REAGENT:4:BAR:NO_SUBTYPE:METAL:IRON]
[REAGENT:1:REACTION_CLASS:FLUX]
[REAGENT:4:BAR:NO_SUBTYPE:METAL:NICKEL]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:STEEL]
[FUEL]

Insert this into the end of the reactions raw and make a new world and you're on your way.
4 iron bars
1 flux
1 nickel bar
makes
5 steel bars


Enjoy

Title: Re: No-carbon steel
Post by: Sparksol on November 05, 2007, 10:30:00 pm
Actually, that looks to me like it'd take 4 nickel bars...maybe I should recheck my raws.
It looks to me like it should be
code:
[REAGENT:1:BAR:NO_SUBTYPE:METAL:NICKEL]  


instead of
code:
[REAGENT:4:BAR:NO_SUBTYPE:METAL:NICKEL] 

[ November 05, 2007: Message edited by: Sparksol ]

Title: Re: No-carbon steel
Post by: Capntastic on November 06, 2007, 05:17:00 am
It says in the article it uses nickel, copper, titanium, aluminum, and a few other metals to make this specific alloy.     Kinda seems like overkill, really, for steel.
Title: Re: No-carbon steel
Post by: Gangsta Spanksta on November 06, 2007, 05:21:00 am
quote:

In its unalloyed condition, titanium is as strong as steel, but 45% lighter.[5]

why would you make steal from titanium?

Title: Re: No-carbon steel
Post by: Gangsta Spanksta on November 06, 2007, 05:23:00 am
titanium armor would be pretty nifty  ;)
Title: Re: No-carbon steel
Post by: Gangsta Spanksta on November 06, 2007, 05:41:00 am
Well just read an interesting article about swords.
http://swordforum.com/metallurgy/titanium.html

So, steal would still be better for swords.  I wonder though about the practicality of titanium armor.  It would weight half as much as steel and offer better protection than leather armor.

Title: Re: No-carbon steel
Post by: THLawrence on November 06, 2007, 07:40:00 am
quote:
Originally posted by Sparksol:
<STRONG>Actually, that looks to me like it'd take 4 nickel bars...maybe I should recheck my raws.
It looks to me like it should be
code:
[REAGENT:1:BAR:NO_SUBTYPE:METAL:NICKEL]  


instead of
code:
[REAGENT:4:BAR:NO_SUBTYPE:METAL:NICKEL] 

[ November 05, 2007: Message edited by: Sparksol ]</STRONG>


Whoops, sorry I hadn't really checked it just threw it together. I have labs to work on so I've banned my self from turning open DF for the next few days. Thus I'm modding to avoid homework. It also means I haven't been able to test anything since monday afternoon when I did my work with the jam mod.

Okay the corrected version:

code:
 

[REACTION:STEEL_MAKING2]
[NAME:make steel bars (Nickel Iron Bars)]
[SMELTER]
[REAGENT:4:BAR:NO_SUBTYPE:METAL:IRON]
[REAGENT:1:BAR:NO_SUBTYPE:METAL:Nickel]
[REAGENT:1:REACTION_CLASS:FLUX]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:STEEL]
[FUEL]


There were a few other typos that would have stopped it before.

AND

code:
 
[REACTION:STEEL_MAKING3]
[NAME:make steel bars (Nickel Iron Ore)]
[SMELTER]
[REAGENT:4:METAL_ORE:IRON]
[REAGENT:1:METAL_ORE:NICKEL]
[REAGENT:1:REACTION_CLASS:FLUX]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:STEEL]
[FUEL]

This will make it from ore.

There is no titanium or cobalt or molybdenum in the game so I'm ignoring those. However if you want titanium armour I should be able to make it tomorrow night. I have class tonight. At the latest Thursday night.

Just one question does titanium appear in viens like hematite, massive clumps like magnetite or stray bunches like aluminium? Also what would be its value?

Title: Re: No-carbon steel
Post by: THLawrence on November 07, 2007, 12:41:00 pm
Well that just killed titanium. Looking through the raws I found that Toady had indeed added the ores for titanium, however there is no titanium in the game because of the difficulty to process it. Even if you found natural titanium chunks you would still be unable to use it as it requires a temperature not given by the magma. So no titanium.
Title: Re: No-carbon steel
Post by: Turgid Bolk on November 07, 2007, 12:51:00 pm
Nonsense, you just have to figure out a way to harness the power of a Spirit of Fire. Sure the dwarves are up to the task.
Title: Re: No-carbon steel
Post by: Name Lips on November 07, 2007, 01:46:00 pm
quote:
Originally posted by Turgid Bolk:
<STRONG>Nonsense, you just have to figure out a way to harness the power of a Spirit of Fire. Sure the dwarves are up to the task.</STRONG>

Tower-Cap Cage Trap!

Title: Re: No-carbon steel
Post by: Sketchy on November 07, 2007, 02:54:00 pm
quote:
Originally posted by Name Lips:
<STRONG>

Tower-Cap Cage Trap!</STRONG>


Nah, it'll quickly become a !! Tower-Cap Cage Trap !!
You need to make it from titanium. Oh wait...

Title: Re: No-carbon steel
Post by: Gangsta Spanksta on November 07, 2007, 09:41:00 pm
quote:
Originally posted by THLawrence:
<STRONG>Well that just killed titanium. Looking through the raws I found that Toady had indeed added the ores for titanium, however there is no titanium in the game because of the difficulty to process it. Even if you found natural titanium chunks you would still be unable to use it as it requires a temperature not given by the magma. So no titanium.</STRONG>

What! Next thing you'll tell me is we can't have depleted uranium armor either.    :mad:

[ November 07, 2007: Message edited by: Gangsta Spanksta ]

Title: Re: No-carbon steel
Post by: rylen on November 07, 2007, 09:59:00 pm
quote:
Originally posted by THLawrence:
<STRONG>Well that just killed titanium. Looking through the raws I found that Toady had indeed added the ores for titanium, however there is no titanium in the game because of the difficulty to process it. Even if you found natural titanium chunks you would still be unable to use it as it requires a temperature not given by the magma. So no titanium.</STRONG>

Use windmills, waterwheels to pump the bellows of your blast furnace.  (Which still won't be hot enough.  But it gives you somewhere to go after/instead of magma.)

Rylen

Title: Re: No-carbon steel
Post by: Metalax on November 08, 2007, 12:18:00 am
Currently this would just make the same steel that you make normally. To make a maraging steel with somewhat different properties then add;

In matgloss_metal

code:

[MATGLOSS_METAL:MSTEEL]
[NAME:maraging steel][ADJ:maraging steel][COLOR:0:7:1]
[VALUE:30]
[SPEC_HEAT:813]
[MELTING_POINT:12718]
[BOILING_POINT:14968]
[WEAPON][WEAPON_RANGED][AMMO][DIGGER][ARMOR][ANVIL]
[DAMAGE_PERC:120]
[BLOCK_PERC:146]
[SOLID_DENSITY:8100]

In reaction_standard

code:

[REACTION:MSTEEL_MAKING]
[NAME:make maraging steel bars (use bars)]
[SMELTER]
[REAGENT:4:BAR:NO_SUBTYPE:METAL:IRON]
[REAGENT:1:BAR:NO_SUBTYPE:METAL:Nickel]
[REAGENT:1:REACTION_CLASS:FLUX]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:MSTEEL]
[FUEL]

[REACTION:MSTEEL_MAKING2]
[NAME:make steel bars (use ore)]
[SMELTER]
[REAGENT:4:METAL_ORE:IRON]
[REAGENT:1:METAL_ORE:NICKEL]
[REAGENT:1:REACTION_CLASS:FLUX]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:MSTEEL]
[FUEL]


This will produce 20% maraging steel which is slightly better for armor and slightly worse for weapons than ordinary grade steel, with slightly increased weight and taking longer to heat up.

Spec_heat and solid_density have been altered to the apropriate values (the game uses J (kg K)^-1 for spec_heat and kg m^-3 for solid_density) but the melting and boiling points have been left at those of steel as I have yet to determine the games units for temperature.

Title: Re: No-carbon steel
Post by: 0x517A5D on November 08, 2007, 11:35:00 pm
quote:
Originally posted by Metalax:

This will produce 20% maraging steel which is slightly better for armor and slightly worse for weapons than ordinary grade steel, with slightly increased weight and taking longer to heat up. [/QB]


Very interesting.  I am definately impressed with how moddable the game is.

However I am leaning toward retracting the suggestion.  Maraging steel requires very high levels of knowledge about alloy chemistry, and very precise manufacturing.  I think it would be an anachronism.

Actually I would like to know what technology level of steel making the game is modeling.  It's obviously not Bessemer, as we don't have to build any sort of forced-air system.  (That would be cool -- harness wind or water to run blowers.)  On the other side of the scale, it's obviously more advanced than wootz methods.

I'm thinking it's the puddling process, but it doesn't quite fit.  We use a bar of iron, a bar of pig iron, a bar of coke, and a chunk of flux.  Puddling should use two or three bars of pig iron, a chunk of iron ore, no coke, and no flux, resulting in three or four bars of wrought (worked) iron, or, with care and an experienced operator, mild steel.  All the carbon required is in the pig iron already.  Carbon content needs to be decreased, not increased.  And the flux was already used to make the pig iron.

Actually, you know what?  Iron production is backwards.  We should be making iron ore + coke + flux into pig iron, and then decarburizing that into wrought iron or refining it into steel.  I need to look into this more, but I think the game has it wrong.

0x517A5D

Title: Re: No-carbon steel
Post by: Turgid Bolk on November 08, 2007, 11:52:00 pm
In a bid to be the new excessive wiki-linker, I present a link to the archived wiki. This is really relevant, though, and recommended reading: Steel (archive).

The last sections are all about real steel-making and DF's model for it.

Title: Re: No-carbon steel
Post by: Sean Mirrsen on November 09, 2007, 04:42:00 am
I always thought that Dwarves (even Tolkien ones) are waaay ahead of everything we know of metals. They work wonders with both stone and metals. I wouldn't be surprised if they found a way to forge titanium, if they found it. So this is no anachronism, and maraging steel too.
Title: Re: No-carbon steel
Post by: Metalax on November 10, 2007, 01:29:00 am
quote:
Originally posted by Turgid Bolk:
<STRONG>In a bid to be the new excessive wiki-linker, I present a link to the archived wiki. This is really relevant, though, and recommended reading: Steel (archive).

The last sections are all about real steel-making and DF's model for it.</STRONG>


From reading that then Pig iron should not need a flux to produce, and should be able to be produced directly from iron ore. Similarly converting the pig iron to steel should not need additional carbon (coke).

Title: Re: No-carbon steel
Post by: 0x517A5D on November 11, 2007, 03:07:00 am
quote:
Originally posted by Metalax:
<STRONG>From reading that then Pig iron should not need a flux to produce, and should be able to be produced directly from iron ore. Similarly converting the pig iron to steel should not need additional carbon (coke).</STRONG>

You absolutely need a flux to convert iron ore to iron, because the ore is not pure.  In fact, it's common for the silica and other components to outweigh the iron.  The flux reacts with the silica to form slag, which floats to the top of the reaction vessel.

It is true that pure Fe2O3 (common rust) or Fe3O4 would not need the flux, as long as the carbon used in the conversion is also pure and only oxygen plays a part in the atmospheric component.  I don't imagine that there are nitrogen side-reactions, but it's possible.

You can play interesting games with purified Fe2O3.  Use a lathe submersed in oil to make aluminum shavings (the oil keeps the outer layer of aluminum from oxidizing), mix intimately with purified Fe2O3 and a binder.  Stick a strip of magnesium in it, light the magnesium, and stand back.  Pow, thermite.  Hot hot hot.

0x517A5D

Title: Re: No-carbon steel
Post by: I3erent on November 15, 2007, 11:42:00 am
quote:
Originally posted by THLawrence:
<STRONG>Well that just killed titanium. Looking through the raws I found that Toady had indeed added the ores for titanium, however there is no titanium in the game because of the difficulty to process it. Even if you found natural titanium chunks you would still be unable to use it as it requires a temperature not given by the magma. So no titanium.</STRONG>

YA but with a bellows you could get the temperature high enough, bellows and water dude!!!!!!

Title: Re: No-carbon steel
Post by: Morkilus on November 15, 2007, 03:05:00 pm
I assume the "iron" made from the smelter is actually wrought iron from the bloom method, but it's a little odd that wrought iron would be necessary to make pig iron.

I'm all for the possibilities of a mechanized blast furnace as an improved smelter.

Title: Re: No-carbon steel
Post by: Angela Christine on November 15, 2007, 05:42:00 pm
quote:
Originally posted by 0x517A5D:
[QB]

Actually I would like to know what technology level of steel making the game is modeling.  It's obviously not Bessemer, as we don't have to build any sort of forced-air system.  (That would be cool -- harness wind or water to run blowers.)  



Actually, if we had the technology for forced air systems, they would probably become necessary to have the furnaces and forges running underground at all.  Once air is in game, dwarves working around the underground furnaces will start dropping dead from carbon monoxide poisoning.  

 :p

Title: Re: No-carbon steel
Post by: mickel on November 15, 2007, 05:46:00 pm
I have vents in some of my workshops. Due to my inefficient logistics I tend to get miasmas in butcheries, fisheries and the like, but my handy ventilation shaft takes care of those.

Actually, that was the very first thing I thought about when I learned about the inclusion of z-levels.