CinderCore · open refractory property data
CinderCorerefractory property dataset

Updated 12 October 2026 · 41 threads, 7 open

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Where a number gets argued about before it becomes a changelog line. Anyone can read. Replying needs a contributor account, which is sponsor-only and currently paused - but a data error with a citation belongs in your email to us, not in a thread, so you lose nothing by not having one.

Before opening a thread about where a value came from: it is in sources.csv, keyed by the source_ids on the record. That link is the entire point of the id. Threads asking “what’s the source for CC-0137’s conductivity?” get closed with a one-word answer and a slightly tired emoji.

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CC-0202 pitch-bonded dolomite RUL looks 40 °C low

@amara-r · 2026-10-02 · opened the thread

Record CC-0202 (dolomite brick, pitch-bonded) has rul_t05_c empty, but the handbook I have gives 1620 °C for the pitch variant and 1580 for resin. The browse table shows the service temperature as 1650 in a reducing atmosphere, so an empty RUL reads like the test was never done, when really it just isn’t in your sources yet. Can it be added?

@maintainer-k · 2026-10-03 · reply

It isn’t in ours, correct. Give me the handbook title, edition and the table number and I’ll pull it. One catch: the same table usually quotes 1580 for the resin-bonded brick, and those two keep getting merged into one record elsewhere. They are different grades and should stay two rows, so I need to know which one your 1620 is measured on.

@amara-r · 2026-10-05 · reply

Refractory Practice for Basic Steelmaking, 3rd ed., 2011, table 7.4, page 212. The 1620 is the pitch-bonded line, ISO 1893, 0.2 MPa, 50 mm cube. Resin is the row below it.

@maintainer-k · 2026-10-09 · reply · marked accepted

That’s a clean citation, thank you - queued for the next minor release at medium confidence, since it’s a single source. It will land as an edit to CC-0202 with the method in the note, not as a new record. This is exactly the shape a correction should arrive in; most of what reaches us is a number with no table behind it.

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Sign in to reply in a thread. If you have a citation for this one, skip the login and email it to data@cindercore.dev - that is where it ends up anyway, and it does not wait on an account.

Why is there no creep field?

@furnace_nerd · 2026-09-28 · opened the thread

Creep decides whether an arch sags over a campaign. Its absence is glaring next to RUL. Was it dropped, or never attempted?

@maintainer-j · 2026-09-30 · reply · marked answered

Never attempted, on purpose. Published creep data exists for maybe 8% of these grades and the test conditions scatter so widely that a normalised column would be 8% full and misleading in the other 92. The rule here is that a field either earns its place across the set or it doesn’t exist; a column that is mostly empty invites people to average over it. If the literature thickens we’ll revisit, but that is a v2 conversation, not a v1 field.

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