Products

X15CrNiSi25-21 Nr. 1.4841

Similar to the previous type, it is differentiated only due to some analytical differences that further improve its resistance to high temperature.

References and Comparable Standards

Standard Reference: EN 10095: 1999

EUROPE		ITALY	GERMANY		FRANCE	UK	USA
EN 10095: 1999		(UNI 6900:71)	-		(NF A 35-578-91)	(BS 1501 pt. 3-80)	AISI
Grade	N°		Werkstoff	N°
X15CrNiSi25-21	1.4841	X 16 CrNiSi 25 20	-	-	Z 15 CNS 25 - 20	-	314

Chemical Composition (Cast Analysis) (%)

C / max	Si	Mn / max	P / max	S / max	N/ max	Cr	Ni
0,20	1,50÷2,50	2,00	0,045	0,015	0,11	24,0÷26,0	19,0÷22,0

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

Size (mm)	Sertlik HB max* **	Rp 0,2 (MPa) min	Rp 1 (MPa) min*	Rm (MPa)**	A5 (%) min**
Size (mm)	Sertlik HB max* **	Rp 0,2 (MPa) min	Rp 1 (MPa) min*	Rm (MPa)**	A5 (%) min**
100	223	230	270	550÷750	30

* 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

Mechanical Properties - Cold Drawn Wire And Coils (2H)*

Tensile strength levels	Rm (MPa)
+C 600	600÷800
+C 700	700÷900
+C 800	800÷1000
+C 900	900÷1100
+C 1000	1000÷1250
+C 1100	1100÷1350
+C 1200	1200÷1450
+C 1400	1400÷1700
+C 1600	1600÷1900

*for reference only
Note: the desired tensile strength level shall be evaluated depending on diameter required

Mechanical Properties - Cold Drawn Wire And Coils In The Solution Annealed Condition (2D)*

Size	A (%) max	Rm (MPa) max
0,10≤d≤0,20	20	1050
0,20≤d≤0,50	30	1000
0,50≤d≤1,00	30	950
1,00≤d≤3,00	30	900
3,00≤d≤5,00	35	850
5,00≤d≤16,00	35	800

*for reference only
Note: If skin passed, Rm might be increased by up to 50 MPa

Working Temperatures Recommended

Operation	°C
Hot forgings deformation	950÷1200
Solution annealing (water, air)	1050÷1150

Relevant Products

X8CrNi25-21 Nr. 1.4845

310