COLD FORMING MATERIALS

Fil de C45EC CHQ

MATERIALSENGINEERINGCREATION GROUP

Centre de produits / Normes ISO / ISO 4954-Annexe C

Fil de C45EC CHQ

Diamètre: 0.40-46mm

Résistance à la traction: Se référer aux informations techniques

Product Detail Technical Information Inspection Packaging

Shanghai Creation GroupEst une entreprise de référence qui se concentrent sur le fil d'acier de qualité de titre froid en Chine. Toute l'équipe de gestion a 20 ans d'expérience dans l'industrie. Nous établissons de bonnes relations avec de nombreux fournisseurs de niveau 1 à l'industrie automobile, tout le fil machine provient des aciéries de marque. Toutes les commandes sont 100% traçables.

Condition de livraison

: +AC ou +AC+PE

: +AR+C+AC

: +AR+C+AC+LC

: +AC+C

Qualité de surface

- : Continu et lisse

- : Sans coutures, chevauchements, fosses, rayures et cicatrices de dessin

- : Libre de rouille

Application

- : Industrie automobile

- : Industrie de la construction

- : Industrie des machines

- : Autres industries

Étude de cas

Products & Service

Fil machine

Décapage et phosphatation

Tréfilage à froid

Recuit de globulisation

Inspection

Produit fini

1. Combinaison des conditions de livraison

Tableau C.1-Combinaisons des conditions de traitement thermique à la livraison, des formes des produits et des exigences applicables

Heat-treatment condition at delivery

Symbo

Products form a

Applicable requirements in cases where the steel concerned has been ordered with reference to the steel names indicated in

Wire rod

Bar

Wire

Tables C.2,C.3,C.4, C.5 or C.6

Tables C.2,C.3,C.4,C.5,C,6,C.Z C.8 or C.9

Tables C.2,C.3,C.4,C.5,C.6 or C.10

Optional

As hot-rolled or peeled

+AR or +PE

Chemical compo- sition as speci- fied in Tables C.2 and C.3

Me- chanical properties as spec- ified in Tables C.4. C.5 and C.6

Chemical compo- sition as speci- fied in Tables C.2 and C.3

Me- chanical properties as spec- ified in Tables C.4, C.5 and C.6

Values for harden- ability according to Tables C.Z C.8 and C.9

Chemical compo- sition as speci- fied in Tables C.2 and C.3

Me- chanical properties as spec- ified in Tables C.4. C.5 and C.6

Mini- mum core hardness and max- imum diameter accord- ing to TableC.10

Supplementa- ry or special requirements as specified in Annex Eb

Cold drawn

+AR +C

—

Cold drawn + spheroidized

+AR+C+ AC

—

Cold drawn + spheroidized + skin passed

+AR+C +AC +LC

—

Spheroidized or spheroidized + peeled

+AC or +AC+PE

Spheroidized + cold drawn

+AC+C

—

Spheroidized+ cold drawn +spheroidized

+AC+C+ AC

Spheroidized + cold drawn +sphe- roidized +skin passed

+AC+C+ AC+LC

Others

Other delivery conditions may be agreed at the time of ordering

a X=applicable,—=not applicable b If agreed at the time of the enquiry and order.

2. composition chimique

Tableau C.3-Composition chimique (applicable à l'analyse coulée) des nuances d'acier allié au bore pour trempe et revenu

Steel name b

% mass fraction

Si c

Cr d

17B2

0,15 to 0,20

0,30

0,60 to 0,90

0,025

0,30

0,0008 to 0,005

0,25

23B2

0,20 to 0,25

0,30

0,60 to 0,90

0,025

0,30

0,0008 to 0,005

0,25

28B2

0,25 to 0,30

0,30

0,60 to 0,90

0,025

0,30

——

0,0008 to 0,005

0,25

33B2

0,30 to 0,35

0,30

0,60 to 0,90

0,025

0,30

—

0,0008 to 0,005

0,25

38B2

0,35 to 0,40

0,30

0,60 to 0,90

0,025

0,30

—

0,0008 to 0,005

0,25

23MnB3

0,21 to 0,25

0,15

0,80 to 1,00

0,015

0,25 to 0,35

—

0,0008 to 0,005

0,25

17MnB4

0,15 to 0,20

0,30

0,90 to 1,20

0,025

0,30

—

0,0008 to 0,005

0,25

20MnB4

0,18 to 0,23

0,30

0,90 to 1,20

0,025

0,30

0,0008 to 0,005

0,25

23MnB4

0,20 to 0,25

0,30

0,90 to 1,20

0.025

0,025

0,30

—

0,0008 to 0,005

0,25

27MnB4

0,25 to 0,30

0,30

0,90 to 1,20

0,025

0,30

—

0,0008 to 0,005

0,25

30MnB4

0,27 to 0,32

0,30

0,80 to 1,10

0,025

0,30

—

0,0008 to 0,005

0,25

36MnB4

0,33 to 0,38

0,30

0,80 to 1,10

0,025

0,30

—

0,0008 to 0,005

0,25

20MnB5

0,17 to 0,23

0,30

1,10 to 1,40

0,025

0,30

—

0,0008 to 0,005

0,25

23MnB5

0,20 to 0,26

0,30

1,10 to 1,40

0,025

0,30

—

0,0008 to 0,005

0,25

26MnB5

0,23 to 0,29

0,30

1,20 to 1,50

0,025

0,30

—

0,0008 to 0,005

0,25

34MnB5

0,31 to 0,37

0,30

1,20 to 1,50

0,025

0,30

—

0,0008 to 0,005

0,25

37MnB5

0,35 to 0,40

0,30

1,15 to 1,45

0,025

0,30

—

0,0008 to 0,005

0,25

30MoB1

0,28 to 0,32

0,30

0,80 to 1,00

0,025

0,30e

0,08 to 0,12

0,0008 to 0,005

0,25

provided that they do not exceed 0,01 %for carbon and the values indicated in Table 2 for the other elements.

Elements not quoted in this table should not be intentionally added to the steel without the agreement of the purchaser,except those intended for finishing the heat.All reasonable precautions shall be taken in order to prevent the addition of such elements from scrap or other materials used in the production process,which can affect the hardenability, mechanical properties and applicability To improve the performance of cold heading,it is possible to add Al:0,020 %to 0,050 %.

a b

Maximum values unless otherwise indicated. In the case of steels with hardenability requirements (see Table C.8),minor deviations from the specified limits are permitted (with the exception of sulfur and phosphorus) c Lower silicon contents may be agreed at the time of ordering,in which case due consideration should be given to the effects that could result for what concerns the specified properties such as,for example,hardenability. d Where a maximum chromium content of 0,30 %is specified,a minimum level may also be agreed at the time of enquiry and order e In order to obtain a core hardening for the steel grade 30MoB1,the lower limit of Cr shall be 0,15 %and may be agreed at the time of enquiry and order.For certain applications, the higher limit for Cr may also be lowered by agreement at time of enquiry and order.

Steel name b	% mass fraction a
Steel name b	C	SI c	Mn	P	S	Cr d	Mo	B	Cu
32CrB4	0,30 to 0,34	0,30	0,60 to 0,90	0,025	0,025	0,90 to 1,20	—	0,0008 to 0,005	0,25
36CrB4	0,34 to 0,38	0,30	0,70 to 1,00	0,025	0.025	0,90 to 1,20		0,0008 to 0,005	0,25
31CrMoB2-1	0,28 to 0,33	0,30	0,90 to 1,20	0,025	0,025	0,40 to 0,55	0,10 to 0,15	0,0008 to 0,005	0,25
Elements not quoted in this table should not be intentionally added to the steel without the agreement of the purchaser,except those intended for finishing the heat.All reasonable precautions shall be taken in order to prevent the addition of such elements from scrap or other materials used in the production process,which can affect the hardenability, mechanical properties and applicability To improve the performance of cold heading,it is possible to add Al:0,020 %to 0,050% a Maximum values unless otherwise indicated b In the case of steels with hardenability requirements (see Table C.8),minor deviations from the specified limits are permitted (with the exception of sulfur and phosphorus) provided that they do not exceed 0,01 %for carbon and the values indicated in Table2 for the other elements. c Lower silicon contents may be agreed at the time of ordering,in which case due consideration should be given to the effects that could result for what concerns the specified properties such as,for example,hardenability. d Where a maximum chromium content of 0,30 %is specified,a minimum level may also be agreed at the time of enquiry and order e In order to obtain a core hardening for the steel grade 30MoB1,the lower limit of Cr shall be 0,15 %and may be agreed at the time of enquiry and order.For certain applications the higher limit for Cr may also be lowered by agreement at time of enquiry and order

3. Propriétés mécaniques

Tableau C.4-Propriétés mécaniques des nuances d'acier non allié sans bore

Steel name	Diameter		Delivery condition
	Diameter		+AC or +AC+PE		+AR+C+AC		+AR+C+AC+LC		+AC+C
	above mm	up to mm	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %
C30EC C30RC	2	5	—	—	—	—	620	55	—	—
	5	10	—	—	—		620	55	620	55
	10	40	590				620	55	620	55
C35EC C35RC	2	5			550	62	590	60		—
	5	10	560	60	540	62	580	60	670
	10	40	560	60	540	62	580	60	660	—
C45EC C45RC	2	5		—	590	62	630	60	—	—
	5	10	600	60	580	62	620	60	720	—
	10	40	600	60	580	62	620	60	710	—

4. Exigences de trempage

Tableau C.7-Limites de dureté pour les nuances d'acier sans bore avec trempabilité spécifiée (normale) (nuances H)

Steel name	Sym- bol	Austenitizing temperature °℃±5℃	Limits of range	Hardness HRC at a distance from quenched end of test piece(in mm) of
Steel name	Sym- bol	Austenitizing temperature °℃±5℃	Limits of range	1	2	3	4	5	6	7	8	9	10	11	13	15	20	25	30
C35EC	+H	870	max.	58	57	55	53	49	41	34	31	28	27	26	25	24	23	20	—
C35RC	+H	870	min.	48	40	33	24	22	20		一				—				—
C45EC	+H	850	max.	61	60	59	57	53	47	39	34	31	30	29	28	27	26	25	24
C45RC	+H	850	min	51	46	35	27	25	24	23	22	21	20	—	—	—		—	—
				at a distance from quenched end of test piece(in mm) of
				1,5	3	5	7	9	11	13	15	20	25	30	35	40	45	50
37Mo2	+H	850	max.	59	57	53	47	41	36	32	29	27	25		—		—	—	—
37Mo2	+H	850	min.	51	48	41	33	27	26	22	20			一
38Cr2	+H	850	max.	59	57	54	49	43	39	37	35	32	30	27	25	24	23	22	—
38Cr2	+H	850	min.	51	46	37	29	25	22	20					—
46Cr2	+H	850	max.	63	61	57	52	46	42	40	38	35	33	31	29	28	27	26
46Cr2	+H	850	min	54	49	40	32	28	25	23	22	20	—
34Cr4	+H	850	max.	57	57	56	54	52	49	46	44	39	37	35	34	33	32	31
34Cr4	+H	850	min.	49	48	45	41	35	32	29	27	23	21	20	—	—
37Cr4	+H	850	max.	59	59	58	57	55	52	50	48	42	39	37	36	35	34	33	—
37Cr4	+H	850	min.	51	50	48	44	39	36	33	31	26	24	22	20
41Cr4	+H	850	max.	61	61	60	59	58	56	54	52	46	42	40	38	37	36	35
41CrS4	+H	850	min,	53	52	50	47	41	37	34	32	29	26	23	21	—	—
25CrMo4	+H	850	max.	52	52	51	50	48	46	43	41	37	35	33	32	31	31	31
25CrMoS4	+H	850	min.	44	43	40	37	34	32	29	27	23	21	20	—	—		一	—
34CrMo4	+H	850	max.	57	57	57	56	55	54	53	52	48	45	43	41	40	40	39
34CrMo4	+H	850	min.	49	49	48	45	42	39	36	34	30	28	27	26	25	24	24	—
37CrMo4	+H	850	max	60	60	60	59	58	56	55	54	51	48	46	45				——
37CrMo4	+H	850	min.	52	50	49	47	45	43	40	37	34	32	31	30
42CrMo4	+H	850	max.	61	61	61	60	60	59	59	58	56	53	51	48	47	46	45
42CrMoS4	+H	850	min	53	53	52	51	49	43	40	37	34	32	31	30	30	29	29

Steel name	Sym- bol	Austenitizing temperature C±5℃	Limits of range	Hardness HRC at a distance from quenched end of test piece(in mm) of
Steel name	Sym- bol	Austenitizing temperature C±5℃	Limits of range	1	2	3	4	5	6	7	8	9	10	11	13	15	20	25	30
41CrNiMo2	+H	850	max.	60	60	60	59	58	57	55	54	48	42	40	38	37	37	36	—
41CrNiMoS2	+H	850	min.	53	53	52	50	47	42	38	35	30	28	26	25	24	24	23	—
34CrNiMo6	+H	850	max.	58	58	58	58	57	57	57	57	57	57	57	57	57	57	57
34CrNiMo6	+H	850	min.	50	50	50	50	49	48	48	48	48	47	47	47	46	45	44	—
41NiCrMo7-3-2	+H	860	max.	60	60	60	60	60	60	60	59	59	58	58	57	57
41NiCrMo7-3-2	+H	860	min.	54	54	54	54	54	54	54	54	53	52	52	51	50	—	—	—