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36CrMn5

A chromium and manganese alloy steel, no longer present in the unified standards, it is widely used in the quenched and tempered state for pins and hubs of heavy equipment and more generally in the automotive field.

References and Comparable Standards

Standard Reference: UNI 7845-78 (Hot-rolled products)

EUROPE		ITALY	GERMANY		FRANCE	UK	USA
EN 10083-3: 2006 EN 10277-5: 2008		(UNI 7845-78)	(DIN 17200-86)		(NF A 35-552-86)	(BS 970 pt.3-96)	ASTM A 29
Grade	N°		Werkstoff	N°
-	-	36CrMn5	-	-	-	-	-

Chemical Composition (Cast Analysis) (%)

ITALY	C	Si	Mn	P/max	S/max	Cr	Al	Pb
36CrMn5	0,33÷0,40	0,15÷0,40	0,80÷1,10	0,035	0,035	1,00÷1,30	0,020÷0,050	-
36CrMn5Pb	0,33÷0,40	0,15÷0,40	0,80÷1,10	0,035	0,035	1,00÷1,30	0,020÷0,050	0,15÷0,30

Mechanical Properties - As Rolled Condition

Size (mm)	Treated to improve shearability (+S)	Soft annealing (+A)	Quenched and tempered (+QT)
Size (mm)	HB max to condition		Rp0,2 (MPa) min	Rm (MPa) min	A5 (%) min	KCU (J) min
d≤16	255	230	685	880÷1080	12	-
16<d≤40	255	230	590	780÷930	13	25
40<d≤100	255	230	540	740÷880	14	25

Mechanical Properties – Bright Steel*

Size (mm)	as Rolled+Turned (+A+SH)	Quenched+Tempered+Turned (+QT+SH)**			Quenched+Tempered+Cold Drawn (+QT+C)			as Rolled+Cold Drawn(+A+C)
Size (mm)	Hardness HB max	Rp0,2 (MPa) min	Rm (MPa) min	A5 (%) min	Rp0,2 (MPa) min	Rm (MPa)	A5 (%) min	Hardness HB max
5≤d≤10	-	-	-	-	700	900÷1100	7	290
10<d≤16	-	-	-	-	700	900÷1100	8	280
16<d≤40	230	590	780÷930	13	600	780÷930	8	275
40<d≤63	230	540	740÷880	14	540	740÷880	9	270
63<d≤100	230	540	740÷880	14	500	740÷880	10	265

*For reference only
**This values are valid also for Cold Drawn - Quenched + Tempered Condition (+C +QT)
For size <5 mm the mechanical properties may be agreed at the time of enquiry and order