BS · United Kingdom · 4 designations

43/35

43/35 is a designation in BS for the material held under material number 1.0977, also listed as QStE 360 N. It is a material in the category Fine-grain steels for cold forming. We list 4 designations recorded for this grade, in the standards DIN / EN and BS.

Material no. 1.0977
Category Fine-grain steels for cold forming · 27 grades
Designations 4

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If you came for one of these

The most-used names for this grade.

DIN / ENS355NCThis grade’s own name

About Fine-grain steels for cold forming

Fine-grain steels for cold forming are steels with a refined grain structure, combining strength with the ductility needed for deformation at low temperatures. They are used for formed components where reliable shaping and consistent mechanical performance are required.

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

Also known as

4 designations · 2 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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.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

BSUnited Kingdom · 1

43/35Indicative

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 — 97.3 %Mn — 1.6 %Si — 0.5 %C — 0.2 %Traces & impurities · 0.4 %

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

Element	% by weight
	≤ 0.18
	≤ 0.5
	≤ 1.6
	0.025
	0.015
	≤ 0.1
	≥ 0.015
	≤ 0.15
	≤ 0.09

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	≤0,18	—	0.180	Max
Al	≥0,015	0.015	—	Min
Si	≤0,50	—	0.500	Max
P	0,025	0.025	0.025	Exact
S	0,015	0.015	0.015	Exact
Ti	≤0,15	—	0.150	Max
V	≤0,10	—	0.100	Max
Mn	≤1,60	—	1.600	Max
Nb	≤0,09	—	0.090	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

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

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.

Properties by condition

1 conditions · 2 values

By thicknessno delivery state statedsource steelnumber

Thicknessmm	A80% · Lo = 80 mm	A% · Lo = 5,65 √So
≤ 3	20	—
≥ 3	—	25

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.

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.

S380NC1.0979

Mn ≤1,60 · Si ≤0,50