COLD FORMING MATERIALS

20 NiCrMoS 6 -4 CHQ丝

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20 NiCrMoS 6 -4 CHQ丝

直径: 0.40-46mm

拉伸强度: 参考技术信息

Product Detail Technical Information Inspection Packaging

上海创造集团是中国专注于冷轧优质钢丝的标杆企业，整个管理团队拥有20年的行业经验。我们与多家汽车行业一级供应商建立了良好的关系，所有钢丝均来自品牌钢厂。所有订单均100%可追溯。

Specification

+AC

+FP

+AR+C+AC

+AR+C+AC+LC

+AC+C

Specification

- : 连续且平滑

- : 无接缝、重叠、坑坑、划痕和拉拔划痕

- : 不应有锈迹

Specification

- : 汽车产业

- : 建筑业

- : 机械行业

- : 其他行业

Case Study

Products & Service

盘条

酸洗与磷化

冷拉拔

球化退火

检查

成品

1.交货条款组合

表B.1 -交货时热处理条件、产品形式和适用要求的组合

Heat-treatment condition at delivery	Symbol	Products form a			Applicable requirements in cases where the steel concerned has been ordered with reference to the steel names indicated in
Heat-treatment condition at delivery	Symbol	Wire rod	Bar	Wire	TablesB.2,B.3,B.4 or B.5		TablesB.2,B.3,B.4,B.5,B.6 or B,7			Optional
As hot-rolled or peeled	+AR or +PE	X	X	X	Chemical composition as specified in Table B.2	Mechanical properties as specified in TablesB.3,B.4 and B.5	Chemical compositior as specified in Table B.2	Mechanical properties as specified inTablesB,3,B.4 and B.5	Values for hardenability according to Tables B.6 and B.7	Supplementa- ry or special requirements as specified in Annex Eh
Cold drawn	+AR+C	-	X	X
Cold drawn + spheroidized	+AR+C+AC	-	X	X
Cold drawn + spheroidized+skin passed	+AR+C+AC +LC	-	X	X
Spheroidized or spheroidized+peeled	+AC or +AC +PE	X	X	X
Spheroidized+cold drawn	+AC+C		X	X
Treated to ferrite- pearlite structure and hardness range	+FP	-	X	-
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.化学成分

表B.2 -表面硬化用钢的化学成分（适用于铸造分析）

Steel name b	% mass fraction a
Steel name b	C	Si c	Mn	P	S	Cr	Ni	Mo	B	Cu
Non-alloy steel grades
C10E2C	0,08 to 0,12	0,30	0,30 to 0,60	0,025	0,025		—		—	0,25
C15E2C	0,13 to 0,17	0,30	0,30 to 0,60	0,025	0,025		—	—	—	0,25
C17E2C	0,15 to 0,19	0,30	0,60 to 0,90	0,025	0,025		—	—	—	0,25
C20E2C	0,18 to 0,22	0,30	0,30 to 0,60	0,025	0,025	—	—		—	0,25
Alloy steel grades
18MnB4	0,16 to 0,20	0,30	0,90 to 1,20	0,025	0,025		—	—	0,0008 to 0,005	0,25
22MnR4	0,20 to 0,24	0,30	0,90 to 1,20	0,025	0,025	——	—	—	0,0008 to 0,005	0,25
17Cr3	0,12 to 0,20	0,30	0,60 to 0,90	0,025	0,025	0,70 to 1,25	—	—	—	0,25
17CrS3	0,12 to 0,20	0,30	0,60 to 0,90	0,025	0,020 to 0,040	0,70 to 1,25	—	—	—	0,25
20Cr4	0,17 to 0,23	0,30	0,60 to 0,90	0,025	0,025	0,90 to 1,20	—	—	—	0,25
20CrS4	0,17 to 0,23	0,30	0,60 to 0,90	0,025	0,020 to 0,040	0,90 to 1,20	—	—	—	0,25
16MnCr5	0,14 to 0,19	0,30	1,00 to 1,30	0,025	0,025	0,80 to 1,10		—	—	0,25
16MnCrS5	0,14 to 0,19	0,30	1,00 to 1,30	0,025	0,020 to 0,040	0,80 to 1,10	—	—		0,25
16MnCrB5	0,14 to 0,19	0,30	1,00 to 1,30	0,025	0,025	0,80 to 1,10	—	—	0,0008 to 0,005	0,25
20MnCrS5	0,17 to 0,22	0,30	1,10 to 1,40	0,025	0,020 to 0,040	1,00 to 1,30	—	—	—	0,25
12CrMo4	0,10 to 0,15	0,30	0,60 to 0,90	0,025	0,025	0,90 to 1,20	—	0,15 to 0,25	—	0,25
18CrMo4	0,15 to 0,21	0,30	0,60 to 0,90	0,025	0,025	0,90 to 1,20	—	0,15 to 0,25	—	0,25
18CrMoS4	0,15 to 0,21	0,30	0,60 to 0,90	0,025	0,020 to 0,040	0,90 to 1,20	—	0,15 to 0,25	—	0,25
20MoCr4	0,17 to 0,23	0,30	0,70 to 1,00	0,025	0,025	0,30 to 0,60		0,40 to 0,50		0,25
20MoCrS4	0,17 to 0,23	0,30	0,70 to 1,00	0,025	0,020 to 0,040	0,30 to 0,60	—	0,40 to 0,50	—	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 Tables B.6 and B.Z),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 Table 2 for the other elements. c A lower silicon content or a specific silicon range may be agreed at the time of ordering

3.力学性能

表B.5 -合金钢牌号的机械性能

Steel name	Diameter		Delivery condition
	Diameter		+AC		+FP		+AR+C+AC		+AR+C+AC+LC		+AC+C
	above mm	up to mm	Rm max. MPa	Za min %	HB Min.max.		Rm max. MPa	Z min %	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %
17Cr3 17CrS3	2	5					520	62	560	60
	5	10	520	60	140	187	500	62	540	60	630	57
	10	40	520	60	140	187	500	62	540	60	620	57
20Cr4 20CrS4	2	5
	5	10					540	60	580	60	640	55
	10	40	640	60	—	—	540	60	580	60	640	55
16MnCr5 16MnCrS5 16MnCrB5	2	5					550	64	590	62	—
	5	10	550	62	140	187	530	64	570	62	660	59
	10	40	550	62	140	187	530	64	570	62	650	59
20MnCrS5	2	5	一 —	—	—		570	62	610	60	—	—
	5	10	570	60	152	201	550	62	590	60	680	57
	10	40	570	60	152	201	550	62	590	60	670	57
12CrMo4	2	5					500				—
	5	10	500	62	135	185	480	64	520	62	—	一
	10	40	500	62	135	185	480	64	520	62
18CrMo4 18CrMoS4	2	5		一			550	62	590	60	一
	5	10	550	60	140	187	530	62	570	60	660	57
	10	40	550	60	140	187	530	62	570	60	650	57
20MoCr4 20MoCrS4	2	5	—	—			560	62	600	60		一
	5	10	560	60	140	187	540	62	580	60	670	57
	10	40	560	60	140	187	540	62	580	60	660	57
10NiCr5-4	2	5		—			520	64	560	62	—	—
	5	10	520	62	137	187	500	64	540	62	640	59
	10	40	520	62	137	187	500	64	540	62	630	59

4.硬化性要求

表B.6-具有标准硬化性的钢材牌号的硬度极限（+H级）

Steel name	Symbol	Austenitizing temperature ℃±5℃	Limits of range	Hardness HRC at a distance from quenched end of test piece(in mm)of
Steel name	Symbol	Austenitizing temperature ℃±5℃	Limits of range	1,5	3	5	7	9	11	13	15	20	25	30	35	40
18MnB4	+H	890	max.	46	45	44	41	39	35	32	28	21		—
18MnB4	+H	890	min.	40	38	37	30	21	—	—			—
22MnB4	+H	880	max.	49	48	47	45	42	39	35	32	24	20		—
22MnB4	+H	880	min.	43	41	40	32	23			—	—	—		—
17Cr3	+H	880	max	47	44	40	33	29	27	25	24	23	21	—	—
17CrS3	+H	880	min.	39	35	25	20	—	—	一		—		—	—
20Cr4	+H	900	max.	49	48	46	42	38	36	34	32	29	27	26	24	23
20CrS4	+H	900	min.	41	38	31	26	23	21-	—	—	—	—	—	—	—
16MnCr5	+H	870	max.	47	46	44	41	39	37	35	33	31	30	29	28	27
16MnCrS5	+H	870	min.	39	36	31	28	24	21		一	—				—
16MnCrB5	+H	870	max.	47	46	44	41	39	37	35	33	31	30	29	28	27
16MnCrB5	+H	870	min.	39	36	31	28	24	21			—				—
20MnCrS5	+H	870	max.	49	49	48	46	43	42	41	39	37	35	34	33	32
20MnCrS5	+H	870	min.	41	39	36	33	30	28	26	25	23	21	—	—
12CrMo4	+H	870	max.	44	43	41	38	34	30	28	27	23	21		一	—
12CrMo4	+H	870	min.	36	34	30	26	22	—	—	—	—			—	—
18CrMo4	+H	880	max.	47	46	45	42	39	37	35	34	31	29	28	27	26
18CrMoS4	+H	880	min.	39	37	34	30	27	24	22	21
20MoCr4	+H	910	max.	49	47	44	41	38	35	33	31	28	26	25	24	24
20MoCrS4	+H	910	min.	41	37	31	27	24	22			—				—
10NiCr5	+H	880	max.	41	39	37	34	32	30		—	—		—	—	—
10NiCr5	+H	880	min	32	27	24	22	一	一		—	—			—	—
12NiCr3-2	+H	870	max.	43	40	35	26	21			—	—	—	—	—	—
12NiCr3-2	+H	870	min.	37	32	25	—		—		一	—	—		—
17CrNi6-6	+H	870	max.	47	47	46	45	43	42	41	39	37	35	34	34	33
17CrNi6-6	+H	870	min.	39	38	36	35	32	30	28	26	24	22	21	20	20
20NiCrMo2-2	+H	880	max.	49	48	45	42	36	33	31	30	27	25	24	24	23
20NiCrMoS2-2	+H	880	min.	41	37	31	25	22	20