Products

34CrNiMo6 - Nr.1.6582

This is the steel most commonly used in northern Europe when the addition of nickel is required by the severe use conditions. It has an elevated temperability thanks to the presence of significant levels of nickel and chromium: it is even suitable for the construction of large pieces that, at the quenched and tempered state, have well transformed structures down to the core.

References and Comparable Standards

Standard Reference: EN ISO 683-2: 2018 (Hot-rolled products) | EN 10277: 2018 (Bright products)

EUROPE		ITALY	GERMANY		FRANCE	UK	USA
EN 10083-2: 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°
34CrNiMo6	1.6582	-	34CrNiMo6	1.6582	-	-	-

Chemical Composition (Cast Analysis) (%)

C	Si	Mn	P/max	S/max	Cr	Mo	Ni	Cu/max	Al
0,30÷0,38	0,10÷0,40	0,50÷0,80	0,025	0,035	1,30÷1,70	0,15÷0,30	1,30÷1,70	0,40	0,020÷0,050

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	Z (%) min	KV (J) min
d≤16	where the shearability is of importance, this steel should be ordered in the “soft annealed” condition	248	1000	1200÷1400	9	40	-
16<d≤40		248	900	1100÷1300	10	45	45
40<d≤100		248	800	1000÷1200	11	50	45
100<d≤160		248	700	900÷1100	12	55	45
160<d≤250		248	600	800÷950	13	55	45

Mechanical Properties – Bright Steel

Size (mm)	as Rolled+Turned (+A+SH)	Quenched+Tempered+Turned (+QT+SH)*				Islah edilmiş + Soğuk Çekilmiş (+QT +C)			as Rolled+Cold Drawn(+A+C)
Size (mm)	Hardness HB max	Rp0,2 (MPa) min	Rm (MPa) min	A5 (%) min	KV (J) min	Rp0,2 (MPa) min	Rm (MPa)	A5 (%) min	Hardness HB max
5≤d≤10	-	-	-	-	-	770	1000÷1200	8	308
10<d≤16	-	-	-	-	-	750	1000÷1200	8	298
16<d≤40	248	900	1100÷1300	10	40	720	1000÷1200	9	293
40<d≤63	248	800	1000÷1200	11	45	650	1000÷1200	10	288
63<d≤100	248	800	1000÷1200	11	45	650	1000÷1200	10	288

*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

Working Temperatures Recommended

Operation	°C
Hot forgings deformation	850÷1150
Isothermal annealing	820÷860-->650
Soft annealing	640÷680
Quenching in oil	830÷860
Tempering	550÷650

Hardness Limits (Jominy Test)

Limits of range		Hardness HRC at a distance from quenched end of test pieces (mm)
Limits of range		1,5	3	5	7	9	11	13	15	20	25	30	35	40	45	50
+H	Max	58	58	58	58	57	57	57	57	57	57	57	57	57	57	57
+H	Min	50	50	50	50	49	48	48	48	48	47	47	47	46	45	44
+HH	Max	58	58	58	58	57	57	57	57	57	57	57	57	57	57	57
+HH	Min	53	53	53	53	52	51	51	51	51	50	50	50	50	49	48
+HL	Max	55	55	55	55	54	54	54	54	54	54	54	54	53	53	53
+HL	Min	50	50	50	50	49	48	48	48	48	47	47	47	46	45	44