DIN / EN · Europe · 1 designation

16MnCrB5

16MnCrB5 is a material in the category Case hardening steels, held under material number 1.7160. Its recorded composition includes C 0.14–0.19%, Si ≤ 0.4%, S 0.035%, Cr 0.8–1.1% and Mn 1–1.3%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 1000 N/mm² and HB 138–207; these figures vary with the delivery condition and dimension. Its recorded density is 7.76 g/cm³.

Material no. 1.7160
Category Case hardening steels · 60 grades
Designations 1

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About Case hardening steels

Case hardening steels are steels designed to develop a hard, wear-resistant surface while retaining a tough and ductile core. They are used for components such as gears, shafts and other machine parts exposed to contact wear and cyclic loading.

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

Chemical composition

7 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 97.3 %Mn — 1.2 %Cr — 1 %Si — 0.4 %Traces & impurities · 0.2 %

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

Element	% by weight
	0.14–0.19
	≤ 0.4
	1–1.3
	0.025
	0.035
	0.8–1.1
	0.0008–0.005

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
B	0,0008-0,0050	0.001	0.005	Range
C	0,14-0,19	0.140	0.190	Range
Si	≤0,40	—	0.400	Max
P	0,025	0.025	0.025	Exact
S	0,035	0.035	0.035	Exact
Cr	0,80-1,10	0.800	1.100	Range
Mn	1,00-1,30	1.000	1.300	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, Mo.

Physical & mechanical properties

Density7,76g/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

5 conditions · 5 values

By delivery stateSoft annealedsource steelnumber

Delivery state	HB
Soft annealed	207

By delivery stateTreated to hardness rangesource steelnumber

Delivery state	HB
Treated to hardness range	156 – 207

By delivery stateTreated to ferrite-pearlite structure and hardness rangesource steelnumber

Delivery state	HB
Treated to ferrite-pearlite structure and hardness range	140 – 187

By delivery stateNormalizedsource steelnumber

Delivery state	HB
Normalized	138 – 187

At temperatureno delivery state statedsource steelnumber

Temperature°C	RmN/mm²
200	1000

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 1.7, a shared category, and a published range for Mn / Cr 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.

1.71311.7131

Mn 1,00-1,30 · Cr 0,80-1,10