Talk:Basic oxygen steelmaking

	History of science portal This article is part of the History of Science WikiProject, an attempt to improve and organize the history of science content on Wikipedia. If you would like to participate, you can edit the article attached to this page, or visit the project page, where you can join the project and/or contribute to the discussion. You can also help with the History of Science Collaboration of the Month.History of ScienceWikipedia:WikiProject History of ScienceTemplate:WikiProject History of Sciencehistory of science articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Technology C‑class

	Technology portal This article is within the scope of WikiProject Technology, a collaborative effort to improve the coverage of technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.TechnologyWikipedia:WikiProject TechnologyTemplate:WikiProject TechnologyTechnology articles
C	This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible.

Impurities[edit]

How does blowing O2 into the molten iron increase its temperature? Is this caused by the burning of impurities? --Eraticus 02:48, 27 December 2005 (UTC)[reply]

The oxygen does not make it hotter by burning off the impurities, it is caused by an exothermic reaction between the carbon and the oxygen when it forms carbon dioxide.

BOF[edit]

BOF - Basic Oxygen Furnace, many large U.S. steelmakers refer to the process thus, but I am uncertain of where BOS is used and am thus reluctant to edit it. --shadow 23:10, 21 July 2006 (UTC)[reply]

I agree. A BOF is an American term for a similar process. However, the steps taken are slightly different and different amounts of different alloys are used. Ask any old timer steelworker and he'll chew your ear off about it. BOF has to be a separate article simply because it refers to American steel making. Merging the two would not be correct. -User Lackawanna

Bessemer[edit]

I thought the LD process replaced the Bessemer and the Bessemer replaced open hearth. That's what the other articles say. --72.128.33.115 12:49, 25 September 2006 (UTC)[reply]

Even after the introduction of BOF's, open hearths and BOF's were in operation at many steel plants at the same time even though a BOF was a better process. A couple reasons why include the potential loss in output capacity if an open hearth was shut down and the multi-million cost of building another BOF.

BOF's have existed for many decades.

Merge 'Basic oxygen steelmaking' and 'Basic oxygen furnace'[edit]

I've just noticed that there are two separate pages on the basic oxygen furnace and process, that largely repeat the same information. I'm recommending that they be merged. Sentinel75 11:48, 30 July 2007 (UTC)[reply]

I added the merger templates to the two pages to alert everyone. In my opinion I think that they should be merged, because they talk about the same topic. Wizard191 (talk) 16:47, 14 July 2008 (UTC)[reply]

Again, they should not be merged as they refer to two kinda similar but different processes. A BOF is an American term for the American process. BOS is the foreign equivalent. Merging the two would be like merging an article about a foreign car with an American car just because they are both about cars. -user Lackawanna —Preceding unsigned comment added by Lackawanna (talk • contribs) 21:48, 20 September 2008 (UTC)[reply]

I don't think that's an adequate reason not to merge them. There is an article automobile which covers both foreign and american cars. I think the processes have much more in common then they don't. There is no reason the differences can't be noted in one article. --Wizard191 (talk) 02:31, 21 September 2008 (UTC)[reply]

Plagiarism[edit]

It appears that much of this page has either been copied by or copied from the Bluescope steel webpage of the same topic (http://www.bluescopesteel.com/index.cfm?objectid=5248A606-DDF6-4E80-B74FA4A95B3F5107) Someone has committed plagiarism, something should be done —Preceding unsigned comment added by Eagle 1.10 (talk • contribs) 10:59, 13 September 2007 (UTC)[reply]

Iron/Steel Smelting And Forging[edit]

I'm very interested in smelting and forging. Can anyone tell me where and how to learn the basics of the craft? Example, I would like to construct a basic crude furnace in my back yard and I wanna learn how to melt iron and oxidize it into steel and then hammer it and work it into swords and shields or stuff. I'm good in chemistry and I'm in highschool so I understand the processes, I am not a noob. Please assist me.--Ren Storm 21:19, 28 September 2007 (UTC)[reply]

If you can please disscuss this matter here in this topic. Please respect the pre-written text and don't modify other previous text! Also, please sign yourself at ending of your text.

BOS diambiguos (SP?) page[edit]

THis needs to be linked to the BOS disabiguos page. I'm new and don't know how to work a disabiuguos page (or spell one) Basic Oxygen Steel (BOS) making. It's refered to as such in Western australia (we produce 10% of the worlds iron, Yay!)Oxinabox 03:53, 2 October 2007 (UTC)[reply]

This page is already on the BOS disambig page. Wizard191 (talk) 18:14, 14 July 2008 (UTC)[reply]

Why isn't the iron oxidised?[edit]

We just spent a long time reducing our Fe2O3 to Fe, and protecting it with slag for the hot blast air to preven oxidisation, And now we're removing impurities By "Directing a jet of Pure Oxygen at the molten Pig Iron", how come the iron isn't oxidised? Oxinabox 03:57, 2 October 2007 (UTC)[reply]

Illustrations[edit]

How about some diagrams and a few pictures! —Preceding unsigned comment added by Maelli (talk • contribs) 08:31, 27 June 2010 (UTC)[reply]

The pH of the refractories?[edit]

I agree that oxides of calcium and magnesium are basic in nature, but can they be said to have a pH? In the solid state they surely contain no hydrogen ions at all. Moletrouser (talk) 15:59, 16 April 2012 (UTC)[reply]

I see that the intro has been amended since you made this objection, but it's still wrong. The word basic has nothing to do with the refractories; it describes the composition of the slag. This is explained in Basic Oxygen Steelmaking Simulation, version 1.36 User Guide (Section 9.2.1) by steeluniversity.org. For optimal removal of phosphorus and sulphur, the basicity (not pH, as you correctly pointed out) of the slag is required to be 3, which is highly basic, hence the name of the process. The fact that the refractories are also made of basic materials is just a coincidence, since according to the reference I just cited they don't take part in the reactions. --Heron (talk) 18:10, 24 May 2014 (UTC)[reply]

LD Meaning[edit]

When I studied metallurgy in the late 1970s, LD was Linzer Düsenverfahren (Linz Jet method) — Preceding unsigned comment added by 195.43.48.142 (talk) 11:04, 20 October 2015 (UTC)[reply]

External links modified[edit]

Hello fellow Wikipedians,

I have just modified 2 external links on Basic oxygen steelmaking. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 01:19, 28 October 2016 (UTC)[reply]

Tilt![edit]

"The BOS vessel can be tilted up to 360°." That is not what "tilt" means. That would be "rotate." What was the text supposed to say there? IAmNitpicking (talk) 19:41, 28 March 2019 (UTC)[reply]