STAS · Romania · 123 designations

OLC35

OLC35 is a designation in STAS for the material held under material number 1.0501, also listed as C35. It is a material in the category Quenched and tempered steels. We list 123 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, UNE, ISO, JIS, GB, GOST, UNI, SS, ČSN, STN, PN, SRPS, MSZ, AS / NZS, STAS, BDS, ÖNORM, NBN, SNV and KS.

Material no. 1.0501
Category Quenched and tempered steels · 133 grades
Designations 123

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If you came for one of these

The most-used names for this grade.

About Quenched and tempered steels

Quenched and tempered steels are heat-treated steels designed to combine high strength with useful toughness and ductility. They are used for heavily loaded components such as shafts, gears, fasteners and structural machine parts where resistance to mechanical stress is required.

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

Also known as

123 designations · 24 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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 · 3

UNSUnited States · 2

AISI / SAEUnited States · 9

BSUnited Kingdom · 11

AFNORFrance · 17

UNESpain · 5

ISOInternational · 2

JISJapan · 5

GBChina · 4

UNIItaly · 8

SSSweden · 3

ČSNCzechia · 1

12040Indicative

STNSlovakia · 1

12 040Indicative

PNPoland · 2

SRPSSerbia · 1

Č.1430Indicative

MSZHungary · 2

AS / NZSAustralia / New Zealand · 1

1035Indicative

STASRomania · 4

BDSBulgaria · 3

ÖNORMAustria · 3

NBNBelgium · 4

SNVSwitzerland · 2

KSSouth Korea · 2

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

Chemical composition

8 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 97.6 %Mn — 0.7 %Si — 0.4 %Cr — 0.4 %Traces & impurities · 0.9 %

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

Element	% by weight
	0.32–0.39
	≤ 0.4
	0.5–0.8
	0.045
	0.045
	≤ 0.4
	≤ 0.1
	≤ 0.4

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	0,32-0,39	0.320	0.390	Range
Si	≤0,40	—	0.400	Max
P	0,045	0.045	0.045	Exact
S	0,045	0.045	0.045	Exact
Cr	≤0,40	—	0.400	Max
Mn	0,50-0,80	0.500	0.800	Range
Ni	≤0,40	—	0.400	Max
Mo	≤0,10	—	0.100	Max

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

computed from composition · °C

Predicted Ae3783°C

Predicted Ae1724°C

Predicted Acm572°C

Predicted Bs563°C

These four temperatures are a CALCULATION from this grade's own composition, using the published Li, Niebuhr, Meekisho & Atteridge (1998) model — never a measurement, and computed from the UPPER BOUND of each element's specified range, not a mid-range figure. Where this grade also has a measured transformation point (Ac1, Ac3, Ar1, Ar3) on file, it is shown separately, in Physical & mechanical properties, and is never replaced by the predicted figures here — Ae (predicted, equilibrium) and Ac/Ar (measured, on heating or cooling) are different physical quantities and can differ by tens of degrees; a mismatch between the two is not an error in either.

Physical & mechanical properties

Rm≥570N/mm²Min

A≥19%Min

Density7,85g/cm³Exact

Transformation point Ac1724°CExact

Transformation point Ac3790°CExact · Ac3(Acm)

Transformation point Ar3760°CExact · Ar3(Arcm)

Transformation point Ar1680°CExact

Weldabilityweldable with restrictionsAs published: limited weldability.

Flake sensitivitynot susceptibleAs published: not predisposed

Temper brittlenessnot susceptibleAs published: not 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

10 conditions · 108 values

By delivery stateno delivery state statedsource splav

Delivery state	RmN/mm²	ReN/mm²	A5%	Z%	HB
Pipe hotrolled	600	340	16	—	—
Rolled stock cold-worked , GOST 1050-88	610	—	6	35	—
Rolled stock annealed , GOST 1050-88	510	—	14	40	—
Band annealed , GOST 2284-79	440 – 690	—	14	—	—
Band cold-worked , GOST 2284-79	690 – 1030	—	—	—	—
Sheet GOST 4041-71	—	—	—	—	167
Rolled stock GOST 1050-88	—	—	—	—	241

By thicknessNormalizedsource steelnumber

Thicknessmm	RmN/mm²	A%
≤ 16	550	18
16 – 100	520	19
100 – 250	500	19
250 – 500	480	—
500 – 1000	470	—

By thicknessCold drawn / hardsource steelnumber

Thicknessmm	RmN/mm²	A%
5 – 10	650 – 1000	6
10 – 16	600 – 950	7
16 – 40	580 – 880	8
40 – 63	550 – 840	9
63 – 100	520 – 800	9

By delivery stateAs rolled and turnedsource steelnumber

Delivery state	HB
As rolled and turned	154 – 207

By dimensionno delivery state statedsource splav

Dimensionmm	RmN/mm²	A5%
4 - 14	510 – 660	21

By heat-treated conditionno delivery state statedsource splav

Heat-treated condition	RmN/mm²	ReN/mm²	A5%
Pipe cold-rolled	580	320	17

By heat-treated conditionno delivery state statedsource splav

Heat-treated condition	RmN/mm²	Z%
Bar cold-drawn , GOST 10702-78	590	40

By dimensionNormalizingsource splav

Dimensionmm	RmN/mm²	ReN/mm²	A5%	Z%
to 80	570	335	19	45

By dimensionNormalizingsource splav

Dimensionmm	RmN/mm²	ReN/mm²	A5%	Z%
6 - 60	570	335	19	45

At temperatureno delivery state statedsource splav

Temperature°C	Densityg/cm³	Elastic modulusGPa	Thermal expansion coefficient10^-6/K	Thermal conductivityW/(m·K)	Specific heat capacityJ/(kg·K)	Electrical resistivitynΩ·m
20	7.85	213	—	51.5	483	160
100	—	210	11.9	50.6	486	221
200	—	198	12.7	48.1	497	296
300	—	190	13.5	45.6	512	387
400	—	185	14.05	41.9	529	493
500	—	179	14.5	38.1	550	619
600	—	167	14.9	33.5	574	766
700	—	160	15.15	30	628	932
800	—	—	12.5	24.8	674	1110
900	—	—	13.5	25.7	657	1150
1000	—	—	14.5	26.9	653	1180
1100	—	—	15.2	28	649	1207
1200	—	—	15.8	29.5	649	1230

2 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition.

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.

Heat treatment

Supply condition

Annealing

Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied.

Source: www.caishuku.com

Similar grades — and why

Selection rule, stated so you can disagree with it: same number class 1.0, a shared category, and a published range for Mn / Si 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.

C26D1.0415

Mn 0,50-0,80 · Si 0,10-0,30