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Material specification for Forged Chains

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King manufacture an unrivalled range of high quality forged chains. The standard is for an alloy steel forging and pin case hardened for wear resistance. Specifications can be varied dependent on the operating environment.

Drop Forged Chain Links
Material reference	JK Reference	Material No		Standard Hardening	JK Heat Treatment Designation	Standard hardening value	Standard hardening depth
Material reference	JK Reference	DIN	AISI	Standard Hardening	JK Heat Treatment Designation	Standard hardening value	Standard hardening depth
STANDARD QUALITIES
20CrMnTn	TN	1.8401	A29/A29M	CASE HARDENING	CH	58-62 HRC	0,8-1,0 mm
42CrMo4	CD	1.7225	4140	HARDENING AND TEMPERING	TH	1100-1300 N/mm²
ALTERNATIVES ON REQUEST
18MnCrB5	BN	1.7168	–	CASE HARDENING	CH	58-62 HRC	0,8-1,0 mm
20MnCr5	MN	1.7147	5120	CASE HARDENING	CH	58-62 HRC	0,8-1,0 mm
21NiCrMo4	CN	1.6523	8620H	CASE HARDENING	CH	58-62 HRC	0,8-1,0 mm
C45	C	1.0503	1045	HARDENING AND TEMPERING	TH	800-900 N/mm²
CORROSION AND ACID RESISTANT MATERIAL
X5CrNi 18-10 (V 2 A)	SS304	1.4301	304
X6CrNiMoTi 17-12 2 (V 4 A)	SS316	1.4571	316
X46Cr13	SS 420	1.4034	420	HARDENING AND TEMPERING	TH	50-52 HRC
HEAT – RESISTANT MATERIAL
				HEAT RESISTANCE IN AIR
X10CrAlSi7	JK HK	1.4713		800° C MAX		420-620 N/mm²
X15CrNiSi 20-12	JK HH	1.4828	309	1000°C MAX		500-750 N/mm²

Chain Pins
Material reference	JK Reference	Material No		Standard Hardening	JK Heat Treatment Designation	Standard hardening value	Standard hardening depth
Material reference	JK Reference	DIN	AISI	Standard Hardening	JK Heat Treatment Designation	Standard hardening value	Standard hardening depth
STANDARD QUALITIES	BS970 1991
16MnCr5	590M17	1.7131	5115	CASE HARDENING	CH	58-62 HRC	0,8-1,0 mm
15NiCr13	633M13	1.5752	3310	CASE HARDENING	CH	58-62 HRC	0,8-1,0 mm
18CrNi8		1.592		CASE HARDENING	CH	58-62 HRC	0,8-1,0 mm
C45	080M46	1.0503	1045	INDUCTION HARDENING	IH	52-56 HRC	1,5-2,0 mm
				HARDENING AND TEMPERING	TH	45-50 HRC
42CrMo4	708M40	1.7225	4140	INDUCTION HARDENING	IH	56-60 HRC	1,5-2,0 mm
				HARDENING AND TEMPERING	TH	56-60HRC
CORROSION AND ACID RESISTANT MATERIAL
X46Cr13	420S29	1.4034	420	HARDENING AND TEMPERING	TH	50-52 HRC
X105CrMo17	440S49	1.4125	440	HARDENING AND TEMPERING	TH	50-55 HRC

Circlips
Material reference	JK Reference	Material No		Standard Hardening	JK Heat Treatment Designation	Standard hardening value	Standard hardening depth
Material reference	JK Reference	DIN	AISI	Standard Hardening	JK Heat Treatment Designation	Standard hardening value	Standard hardening depth
STANDARD QUALITIES
DD12	P12	1.0398	621
Ferritic – Cromweld 3Cr12	SS410	1.4003	410
Austenitic	SS304	1.4301	303

Bushes
Material reference	JK Reference	Material No		Standard Hardening	JK Heat Treatment Designation	Standard hardening value
Material reference	JK Reference	DIN	AISI	Standard Hardening	JK Heat Treatment Designation	Standard hardening value
STANDARD QUALITIES
C 67 S	070A72	1.1231	1070	HARDENING AND TEMPERING	TH	420-500 HV
55 SI 7		1.5026	9255	HARDENING AND TEMPERING	TH	410-500 HV
CORROSION AND ACID RESISTANT MATERIAL
X 5 CR NI 18-10 (V 2 A)	SS304	1.4301	304
X 6 CR NI MO TI 17-12 2 (V 4 A)	SS316	1.4571	316
X 46 CR 13	SS420	1.4034	420	HARDENING AND TEMPERING	TH	42-49 HRC
X 7 CR NI AL 17-7	SS630	1.4568	630	PRECIPITATION HARDENING	PH	400-480 HV

Chain Flights
Material reference	JK Reference	Material No		Standard Hardening	JK Heat Treatment Designation	Standard hardening value
Material reference	JK Reference	DIN	AISI	Standard Hardening	JK Heat Treatment Designation	Standard hardening value
STANDARD QUALITIES
S 235 JR	S235	1.0038	1018
S 355 J2	S355	1.0577	1036
C 45	080M46	1.0503	1045
AR400	HP400	XAR400		HARDENING AND TEMPERING	TH	400 Bnh
AR500	HP500	XAR500		HARDENING AND TEMPERING	TH	500 Bnh
CORROSION AND ACID RESISTANT MATERIAL
X 5 CR NI 18-10 (V 2 A)	SS304	1.4301	304
X 6 CR NI MO TI 17-12-2 (V 4 A)	SS316	1.4571	316
HEAT – RESISTANT MATERIAL
				HEAT RESISTANCE IN AIR
X 10 CR AL SI 7	JKHK	1.4713		MAX 800°C
X 15 CR NI SI 20-12	JKHH	1.4828	310	MAX 1200²C

Sprocket Segments
Material reference	JK Reference	Material No		Heat Treatment	JK Heat Treatment Designation	Maximum surface Hardness (hrc)
Material reference	JK Reference	DIN	AISI	Heat Treatment	JK Heat Treatment Designation	Maximum surface Hardness (hrc)
C45	080M46	1.0503	1045	INDUCTION HARDENED	IH	60 (3+2mm)
34 CR MO 4	708A37	1.7220	4135	INDUCTION HARDENED	IH	57 (3+2 mm)
42 CR MO 4	708A42	1.7225	4142	INDUCTION HARDENED	IH	61 (3+2 mm)

Idler Wheel
Material reference	JK Reference	Material No		Heat Treatment	JK Heat Treatment Designation	Maximum surface Hardness (hrc)
		DIN	AISI
C45	080M46	1.0503	1045	INDUCTION HARDENED	IH	60 (3+2 mm)

Flights are robotically welded in one of three manufacturing facilities in the UK, Poland and the USA. The integrity of the welding is fundamental to best performance.

The configuration will vary dependent on the style of machine.

Back to Cereals Processing Chains

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Material specification for Forged Chains

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