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UNE · Spain · 33 designations

F-1312

F-1312 is a designation in UNE for the material held under material number 1.3520, also listed as 100CrMnSi6-4. It is a material in the category Bearing steels. We list 33 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, ISO, JIS, GB, GOST, ČSN, STN, PN, MSZ, STAS and BDS.

If you came for one of these

The most-used names for this grade.

About Bearing steels

Bearing steels are high-carbon steels designed for rolling-element bearings and other components exposed to repeated contact loading. They are characterised by high hardness, wear resistance and resistance to rolling-contact fatigue after suitable heat treatment. They are used for bearing rings, races and rolling elements where reliable operation under cyclic loads is required.

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

Also known as

33 designations · 17 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

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

Chemical composition

9 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 95.4 %Cr — 1.5 %Mn — 1.1 %C — 1 %Traces & impurities · 1 %

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

Element% by weight
0.93–1.05
0.45–0.75
1–1.2
0.025
0.015
1.4–1.65
≤ 0.3
≤ 0.05
≤ 0.0015
CarbonSiliconManganesePhosphorusSulfurChromiumCopperAluminiumOxygen
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
C0,93-1,050.9301.050Range
O≤0,00150.002Max
Al≤0,0500.050Max
Si0,45-0,750.4500.750Range
P0,0250.0250.025Exact
S0,0150.0150.015Exact
Cr1,40-1,651.4001.650Range
Mn1,00-1,201.0001.200Range
Cu≤0,300.300Max

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, Mo.

Physical & mechanical properties

Density7,56g/cm³Exact
Transformation point Ac1750°CExact
Transformation point Ac3910°CExact · Ac3(Acm)
Transformation point Ar1688°CExact
Flake sensitivitysusceptibleAs published: predisposed
Temper brittlenesssusceptibleAs published: predisposed

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.

Properties by condition

3 conditions · 10 values
By heat-treated conditionno delivery state statedsource splav
Heat-treated conditionRmN/mm²ReN/mm²A5%Z%KCUkJ/m²
Steel590 – 730370 – 4102045440
By delivery stateno delivery state statedsource splav
Delivery stateHB
(hot-rolled) , Rolled stock GOST 801-78179 – 217
At temperatureno delivery state statedsource splav
Temperature°CDensityg/cm³Elastic modulusGPaThermal expansion coefficient10^-6/K
207.65211
20013.4
30013.6

Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ.

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.