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JIS · Japan · 1 designation

SCH47

SCH47 is a material in the category Heat-resistant cast steels. Its recorded composition includes C ≤ 0.5%, Si ≤ 1%, Cr 25–30%, Fe ≤ 20% and Co 48–52%. No cross-standard equivalents are recorded for this grade yet.

About Heat-resistant cast steels

Heat-resistant cast steels are cast ferrous alloys formulated for service at elevated temperatures, where resistance to softening and thermal degradation is important. They are used for furnace components, heat-treatment equipment and other high-temperature plant parts that require cast shapes and dependable mechanical performance during heating.

This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.

Chemical composition

10 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 18.4 %Co — 50 %Cr — 27.5 %Si — 1 %Traces & impurities · 3.1 %

Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.

Element% by weight
≤ 0.5
≤ 1
≤ 1
≤ 0.04
≤ 0.03
25–30
≤ 0.5
≤ 1
48–52 —
≤ 20
CarbonSiliconManganesePhosphorusSulfurChromiumMolybdenumNickelCobaltIron
0.01 %0.1 %1 %10 %100 %

The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other.

ElementAs publishedsource text, verbatimMin% by weightMax% by weightBound
Cmax 0.50.500Max
Simax 11.000Max
Pmax 0.040.040Max
Smax 0.030.030Max
Cr25 - 3025.00030.000Range
Mnmax 11.000Max
Femax 2020.000Max
Co48 - 5248.00052.000Range
Nimax 11.000Max
Momax 0.50.500Max

The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred.

Predicted transformation temperatures

This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here.

Physical & mechanical properties

An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material.

Looking for this grade under another name?

Search the catalogue by designation, material number or composition — every name on this page is itself a way in.