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JIS · Japan · 1 designation

FCDA-NiCrNb 20 2

FCDA-NiCrNb 20 2 is a material in the category Cast iron. Its recorded composition includes C ≤ 3%, Si 1.5–2.4%, Cr 1–3.5%, Mn 0.5–1.5% and Ni 18–22%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 370 N/mm², Re 210 N/mm², A 7% and HB 140–200.

About Cast iron

Cast iron is an iron-based casting alloy whose properties depend on its composition and microstructure. It is characterised by good castability and a range of hardness, strength, and ductility, making it suitable for machine bases, housings, pipes, engine components, and wear-resistant parts.

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

Chemical composition

8 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 71.1 %Ni — 20 %C — 3 %Cr — 2.3 %Traces & impurities · 3.7 %

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

Element% by weight
≤ 3
1.5–2.4
0.5–1.5
≤ 0.08
1–3.5
18–22
≤ 0.5
0.12–0.2
CarbonSiliconManganesePhosphorusChromiumNickelCopperNiobium
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 33.000Max
Si1.5 - 2.41.5002.400Range
Pmax 0.080.080Max
Cr1 - 3.51.0003.500Range
Mn0.5 - 1.50.5001.500Range
Ni18 - 2218.00022.000Range
Cumax 0.50.500Max
Nb0.12 - 0.20.1200.200Range

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

Not enough recorded composition to predict a transformation temperature for this grade — missing: Mo.

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.