Material number · Europe · 1 designation

1.3211

1.3211 is the material number of the grade also listed as S12-1-2-3. It is a material in the category High-speed steels. We list 1 designations recorded for this grade, in the standards DIN / EN.

Material no. 1.3211
Category High-speed steels · 59 grades
Designations 1

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About High-speed steels

High-speed steels are alloyed tool steels designed to retain hardness and cutting ability when tools heat up during high-speed machining. Their hot hardness and wear resistance make them suitable for cutting tools such as drills, milling cutters, taps and broaches.

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

Also known as

1 designations · 1 standards · nothing hidden

This grade’s own namerecorded in our sources as this grade’s own designation under that standard.

Indicativetaken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.

Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

DIN / ENEurope · 1

S12-1-2-3This grade’s own nameWithdrawn

Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.

Chemical composition

10 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 32.1 %Si — 45 %W — 12 %Cr — 4.2 %Traces & impurities · 6.7 %

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

Element	% by weight
	0.77–0.85
	≤ 45 —
	≤ 0.4
	0.03
	0.03
	3.8–4.5
	0.7–1
	1.7–2
	11.5–12.5
	2.5–3

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.

Element	As publishedsource text, verbatim	Min% by weight	Max% by weight	Bound
C	0,77-0,85	0.770	0.850	Range
Si	≤045	—	45.000	Max
P	0,03	0.030	0.030	Exact
S	0,03	0.030	0.030	Exact
V	1,70-2,00	1.700	2.000	Range
Cr	3,80-4,50	3.800	4.500	Range
Mn	≤0,40	—	0.400	Max
Co	2,50-3,00	2.500	3.000	Range
Mo	0,70-1,00	0.700	1.000	Range
W	11,5-12,5	11.500	12.500	Range

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: Ni.

Physical & mechanical properties

Density7,85g/cm³Exact

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.

Similar grades — and why

Selection rule, stated so you can disagree with it: same number class 1.3, a shared category, and a published range for Si / W that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade.

HS12-1-4-51.3202

Si ≤0,45 · W 11,5-12,5