Products

X39Cr13 - Nr.1.4031

Martensitic stainless steel with a high carbon content, suitable for pieces with an elevated hardness such as tools, cutlery, and blades in general. After quenching and tempering the surface can also be hardened by induction tempering.

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 1554 - 90)	AISI
Grade	N°		Werkstoff	N°
X39Cr13	1.4031	X40Cr14	X38Cr13	1.4031	(Z44C14)	420S45	420

Chemical Composition (Cast Analysis) (%)

C	Si / max	Mn / max	P / max	S /max	Cr
0,36÷0,42	1,00	1,00	0,040	0,030	12,5÷14,5

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≤100	Annealed (+A)	245	-	800 max	-	-
	Quenched + Tempered (+QT 800)	-	650	800÷1000	10	12

* 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	950	305	Quenched + Tempered (+QT 800)	700	850÷1100	7	-
10<d≤16	950	305		700	850÷1100	7	-
16<d≤40	900	280		650	800÷1050	8	12
40<d≤63	840	260		650	800÷1000	8	12
63<d≤100	800	245		650	800÷1000	10	12