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JIS · Japan · 1 designation

SUSY317

SUSY317 is a material in the category Stainless steels. Its recorded composition includes C ≤ 0.08%, Cr 18.5–20.5%, Mn 1–2.5%, Ni 13–15% and Mo 3–4%. No cross-standard equivalents are recorded for this grade yet.

About Stainless steels

Stainless steels are corrosion-resistant alloy steels whose chromium content promotes a protective passive surface film. They are used for equipment, structures and components exposed to moisture, chemicals or hygienic service, with different alloy compositions selected for corrosion resistance, strength, formability or weldability.

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 — 60.5 %Cr — 19.5 %Ni — 14 %Mo — 3.5 %Traces & impurities · 2.5 %

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

Element% by weight
≤ 0.08
≤ 0.65
1–2.5
≤ 0.03
≤ 0.03
18.5–20.5
3–4
13–15
CarbonSiliconManganesePhosphorusSulfurChromiumMolybdenumNickel
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 0.080.080Max
Simax 0.650.650Max
Pmax 0.030.030Max
Smax 0.030.030Max
Cr18.5 - 20.518.50020.500Range
Mn1 - 2.51.0002.500Range
Ni13 - 1513.00015.000Range
Mo3 - 43.0004.000Range

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.