EN 14NiCrMo13-4

14NiCrMo13-4 EN 10084-1998, Number: 1.6657	Comparison of steel grades
	JUS	-
	DIN	14NiCrMo13-4
	BS	-
	UNI	16NiCrMo12
	AISI	-
	NF	-

14NiCrMo13-4 Chemical composition (cast analysis)

Chemical elements	C	Si max	Mn	P max.	S	Cr	Mo	Ni
%, by mass	0,11-0,17	0,40	0,30-0,60	0,035	≤ 0,035	0,80-1,10	0,10-0,25	3,00-3,50
Permissible deviation	± 0,02	+ 0,03	± 0,04	+ 0,005	+ 0,005	± 0,05	± 0,02	± 0,07

Hardness HRC at a distance from quenched end of test piece (in milimetres) of
mm		1,5	3	5	7	9	11	13	15	20	25	30	35	40	45	50
+H	max.	47	47	46	46	46	46	46	45	43	42	40	39	38	-	-
+H	min.	39	39	37	36	36	36	35	33	31	30	28	27	26	-	-
+HH	max.	47	47	46	46	46	46	46	45	43	42	40	39	38	-	-
+HH	min.	42	42	40	39	39	39	39	37	35	34	32	31	30	-	-
+HL	max.	44	44	43	43	43	43	42	41	39	38	36	35	34	-	-
+HL	min.	39	39	37	36	36	36	35	33	31	30	28	27	26	-	-

Hardness requirements for products delivered in the conditions ’’treated to improve shearabilita’’ (+S), ’’anneled to maximum hardness requirements’’ (+A), ’’treated to hardness range’’ (+TH) or ’’treated to ferrite-pearlite structure and hardness range’’ (+FP)

Brinell hardness in the condition
+S max.	+A max.	+TH			+FP
		min.		max.	min.	max.
255	241	187	241		166	217

Non-metallic inclusions

Requirements for microscopic degree of purity when tested in accordance with

DIN 50 602 (method K) (valid for oxidic non-metallic inclusions)

D (mm) Bars Diameter d (mm)	K Total characteristic value K (oxides) for the individual cast
140 < d 200	K 4 ≤ 50
100 < d ≤ 140	K 4 ≤ 45
70 < d ≤ 100	K 4 ≤ 40
35 < d ≤ 70	K 4 ≤ 35
17 < d ≤ 35	K 3 ≤ 40
8 < d ≤ 17	K 3 ≤ 30
d ≤ 8	K 2≤ 35

14NiCrMo13-4 Conditions for heat treating test bars and treatment of the steels

End quenchh test Quenching, ⁰C	Carbunnzing temperature, ⁰C	Core-hardening temperature, ⁰C	Case-hardening temperature, ⁰C	Tempering, ⁰C
880	880 to 980	840 to 880	780 to 820	150 to 200

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