Products

X6CrNiNb18-10 - Nr. 1.4550

Steel with characteristics similar to the previous one, in which niobium is the stabilizing element to improve resistance to intercrystalline corrosion.

References and Comparable Standards

Standard Reference: EN 10088-3: 2014 (Hot-rolled and bright products)

EUROPE		ITALY	GERMANY		FRANCE	UK	USA
EN 10088-3: 2005		(UNI 6900:71)	(DIN 17440 - 85)		(NF A 35-573-90)	(BS 970 pt.3 -91)	AISI
Grade	N°		Werkstoff	N°
X6CrNiNb18-10	1.4550	X 6 CrNiNb 18 11	X6CrNiNb18-10	1.4550	Z6 CNNb 18 - 10	347S31	347

Chemical Composition (Cast Analysis) (%)

C / max	Si / max	Mn / max	P / max	S / max	Cr	Nb	Ni
0,08	1,00	2,00	0,045	0,015	17,0÷19,0	10x%C÷1,00	9,0÷12,0

Mechanical Properties - Rough Turned (1X) In The Annealed Condition

Size (mm)	Hardness HB max* **	Rp 0,2 (MPa) min	Rp 1 (MPa) min*	Rm (MPa)**	A5 (%) min**	KV (J) min	Resistance to intergranular corrosion
Size (mm)	Hardness HB max* **	Rp 0,2 (MPa) min	Rp 1 (MPa) min*	Rm (MPa)**	A5 (%) min**	KV (J) min	in the delivery condition	in the welded condition
d≤100	230	205	240	510÷740	40	100	YES	YES

* Only for guidance
** The maximum HB values may be raised by 100HB or the tensile strenght value may be raised by 200 MPa and the
minimum A% value may be lowered to 20% for bars of ≤35 mm