COLD FORMING MATERIALS

20MnB4 تشق الأسلاك

MATERIALSENGINEERINGCREATION GROUP

مركز المنتجات / معايير ايزو / ايزو 4954-المرفق ج

20MnB4 تشق الأسلاك

القطر: 0.40-46 مم

قوة الشد: الرجوع إلى المعلومات التقنية

Product Detail Technical Information Inspection Packaging

Shanghai Creation Groupهي مؤسسة قياسية تركز على أسلاك الفولاذ عالية الجودة على البارد في الصين. فريق الإدارة بأكمله لديه 20 عامًا من الخبرة في هذه الصناعة. نبني علاقات جيدة مع العديد من موردي الطبقة الأولى لصناعة السيارات ، يتم الحصول على جميع قضبان الأسلاك من مصانع الصلب ذات العلامات التجارية. جميع الطلبات قابلة للتتبع ٪.

شروط التسليم

: +AR أو +PE

: +AC أو +AC+PE

: +AR+C

: +AR+C+AC

: +AR+C+AC+LC

: +AC+C

جودة السطح

- : مستمر وسلس

- : خالية من طبقات ، تراكبات ، حفر ، خدوش وندوب رسم

- : خالية من الصدأ

تكميل

- : صناعة السيارات

- : صناعة البناء والتشييد

- : صناعة الآلات

- : صناعات أخرى

دراسة حالة

Products & Service

قضبان أسلاك فولاذية

التخليل والفوسفتة

السحب على البارد

التلدين الكروي

التفتيش

المنتج النهائي

1. مزيج من شروط التسليم

الجدول C.1-مجموعات من ظروف المعالجة الحرارية عند التسليم وأشكال المنتجات والمتطلبات المعمول بها

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. compostion الكيميائية

الجدول c3-التركيب الكيميائي (ينطبق على تحليل الصب) من درجات الصلب المصنوعة من سبائك البورون للتبريد والتلطيف

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. الخصائص الميكانيكية

الجدول C.6-الخصائص الميكانيكية لدرجات الصلب المصنوعة من سبائك البورون

Steel name	Diameter		Delivery condition
			+AR or +PE		+AC or +AC+PE		+AR+C		+AR+C+AC		+AR+C+AC+LC		+AC+C
			Mechanical properties
	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. %	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %
20MnB4	2	5				—			490	68	530	66		—
	5	10	580	60	500	66	680	55	480	68	520	66	600	61
	10	25	580	60	500	66	670	55	480	68	520	66	590	61
23MnB4	2	5							510	66	550	64	—
	5	10	600	60	520	64	700	55	500	66	540	64	620	59
	10	25	600	60	520	64	690	55	500	66	540	64	610	59
27MnB4	2	5					—	—	530	65	570	63
27MnB4	5	40	—		540	63		—	520	65	560	63	640	58
30MnB4	2	5	一	—			—		560	65	600	63	—	—
30MnB4	5	40	——	—	570	63		—	550	65	590	63	670	58
36MnB4	2	5	—	——	一		—	——	590	64	630	62		—
36MnB4	5	40	—	—	600	62	—	—	580	64	620	62	700	57
20MnB5	2	5						—			630	55	—
20MnB5	5	40		—		一	—	—	—		630	55	630	55
23MnB5	2	5	—	—	—	—	—	—	—	—	640	55		—
23MnB5	5	40	—		—	—		—	—	—	640	55	640	55
26MnB5	2	5	—		一	—		—		一	650	55	—	—
26MnB5	5	40	—			—	—	—			650	55	650	55
34MnB5	2	5	—	—	—	—	—		—	—	680	55	—	—
34MnB5	5	40	—	—	一		一	—		一	680	55	680	55
37MnB5	2	5						—	610	64	650	62		—
37MnB5	5	40	—		620	62	—	—	600	64	640	62	720	57
It should be recognized in the +AR condition that the tensile strength values are not compatible with the whole range of composition given in TableC.3 for a steel grade.Care should be taken that,depending on diameter and composition supplied,the tensile strength values are compatible with the hardenability requirements.

Steel name	Diameter		Delivery condition
			+AR or +PE		+AC or +AC+PE		+AR+C		+AR+C+AC		+AR+C+AC+LC		+AC+C
			Mechanical properties
	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. %	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %
30MoB1	2	5		—	——	—		—	530	64	570	62	—	—
30MoB1	5	40			530	62		一	510	64	550	62	630	57
32CrB4	2	5	—	—	—	一	—	—	550	64	590	62	—	—
32CrB4	5	40		—	550	62		—	530	64	570	62	670	57
36CrB4	2	5		—				—	570	63	610	61	—	—
36CrB4	5	40		—	570	61	—	—	550	63	590	61	690	56
31CrMoB2-1	2	5			—			——	570	63	610	61	——	—
31CrMoB2-1	5	40	一	—	570	61		—	550	63	590	61	690	56
It should be recognized in the +AR condition that the tensile strength values are not compatible with the whole range of composition given in TableC.3 for a steel grade,Care should be taken that,depending on diameter and composition supplied,the tensile strength values are compatible with the hardenability requirements.