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X17CrNi16-2 Nr.1.4057

Martensitic stainless steel with the addition of nickel, which improves its resistance to corrosion. It is widely used even if, due to the limited carbon content, it has average mechanical characteristics.

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 35-574-90)	(BS 970 pt. 3-91)	AISI
Grade	N°		Werkstoff	N°
X17CrNi16-2	1.4057	X16CrNi16	X17CrNi16-2	1.4057	Z15CN16-02	431S29	431

Chemical Composition (Cast Analysis) (%)

C	Si / max	Mn / max	P / max	S / max	Cr	Ni
0,12÷0,22	1,00	1,50	0,040	0,030	15,0÷17,0	1,50÷2,50

Mechanical Properties – Rough turned (1X) in the annealed condition

Size (mm)	Heat treatment	Hardness HB max*	Rp 0,2 (MPa) min	Rm (MPa)	A5 (%) min	KV (J) min
d≤10	Annealed (+A)	295	-	950 max	-	-
10<d≤16	Quenched + Tempered (+QT 800)	-	600	800÷950	14	25
16<d≤40	Quenched + Tempered (+QT 800)	-	600	800÷950	12	20
40<d≤63	Quenched + Tempered (+QT 900)	-	700	900÷1050	12	16
63<d≤100	Quenched + Tempered (+QT 900)	-	700	900÷1050	10	15

* only for guidance

Mechanical Properties – Cold drawn (2H, 2B) and ground bars (2G) in the solution annealed condition

Size (mm)	Annealed		Quenched + Tempered
Size (mm)	Rm (MPa) max	HB max*	Heat treatment	Rp 0,2 (MPa) min	Rm (MPa) max	A5 (%) min**	KV (J) min
d≤10	1050	330	Quenched + Tempered (+QT 800)	750	850÷1100	7	-
10<d≤16	1050	330		700	850÷1100	7	-
16<d≤40	1000	310		650	800÷1050	9	25
40<d≤63	950	295		650	800÷1000	12	25
63<d≤100	950	295		650	800÷950	12	16

* for reference only
** values valid only for size ≥5 mm

Mechanical Properties – Cold drawn wire and coils (2H)

Tensile strength levels	Rm (MPa)
+C 500	500÷700
+C 650	650÷850
+C 800	800÷1000
+C 900	900÷1100

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
0,50≤d≤1,00	10	1100
1,00≤d≤3,00	10	1050
3,00≤d≤5,00	10	1000
5,00≤d≤16,00	15	950

Note: If skin passed, Rm might be increased by up to 50 MPa

Working Temperatures Recommended

Operation	°C
Hot forgings deformation	900÷1100
Annealing (furnace, air)	680÷800
Quenching in air or oil	950÷1050
Tempering (QT 800)	750÷800 + 650÷700
Tempering (QT 900)	600÷650