COLD FORMING MATERIALS

C17 GC CHQ line

MATERIALSENGINEERINGCREATION GROUP

product Center / C17 GC CHQ line

C17 GC CHQ line

diameter: 0.40-46mm

tensile strength: refer to technical information

Shanghai Chuang Group is a benchmark company in China focusing on cold-rolled high-quality steel wire. The entire management team has 20 years of industry experience. We have established good relationships with many first-level suppliers in the automotive industry, and all steel wires come from brand steel mills. All orders are 100% traceable.

Specification

+AR or +AR+PE

+AC or +AC+PE

+AR+C

+AR+C+AC

+AR+C+AC+LC

+AC+C

Specification

-:continuous and smooth

-:No seams, overlaps, pits, scratches and drawing scars

-:free from rust

Specification

-:automobile industry

-:construction industry

-:machinery industry

-:other industries

Case Study

Products & Service

Wire rod

Pickling and phosphating

Cold drawing

Spheroidizing annealing

check

finished product

1. Delivery terms combination

Table A.1 -Combination of heat treatment conditions, product form and applicable requirements at the time of delivery

Delivery condition		Symbols	Product form a			Applicable requirements
Delivery condition		Symbols	Wire rod	Bar	Wire	Applicable requirements
Untreated (as hot-rolled)		+AR	X	X	-	Chemical composition as specified inTable A.2	Mechanical properties as specified inTable A.3	Supplementa- ry or special requirements as specified in Annex Eb
peeled Untreatd+	peeled	+AR+PE	X	X	-
	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
Annealed to achieve spheroidized carbides +	As treated or peeled	+AC or AC+PE	X	X	-
Annealed to achieve spheroidized carbides +	cold drawn	+AC+C	-	X	X
Other			Other delivery conditions may be agreed at the time of ordering
a X=applicable,—=not applicable b Ifagreed at the time of enquiry and order.

2. chemical composition

Table A.2-Chemical composition of steel not intended to be heat treated after cold working (applicable for casting analysis)

Steel name	%mass fraction a
Steel name	C	Si	Mn	P	S	Cr	Ni	Mo	Al b	Cu	Cr+Ni+Mo
Non-alloy steel grades
C2C	0,03	0,10	0,20 to 0,40d	0,020	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C4C	0,02 to 0,06	0,10	0,25 to 0,40	0,020	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C8C	0,06 to 0,10	0,10	0,25 to 0,45	0,020	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C10C	0,08 to 0,12	0,10	0,30 to 0,50	0,025	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C10GC	0,08 to 0,12	0,15 to 0,25c	0,30 to 0,50	0,025	0,025	0,30	0,30	0,10		0,30	0,50
C15C	0,13 to 0,17	0,10	0,35 to 0,60	0,025	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C15GC	0,13 to 0,17	0,15 to 0,25c	0,35 to 0,60	0,025	0,025	0,30	0,30	0,10	c	0,30	0,50
C17C	0,15 to 0,19	0,10	0,65 to 0,85	0,025	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C17GC	0,15 to 0,19	0,15 to 0,25c	0,65 to 0,85	0,025	0,025	0,30	0,30	0,10		0,30	0,50
C20C	0,18 to 0,22	0,10	0,70 to 0,90d	0,025	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C20GC	0,18 to 0,22	0,15 to 0,25c	0,70 to 0,90d	0,025	0,025	0,30	0,30	0,10	c	0,30	0,50
C25C	0,23 to 0,27	0,10	0,80 to 1.00d	0,025	0,025	0,30	0,30	0,10	0,020 to 0,060	0,30	0,50
C25GC	0,23 to 0,27	0,15 to 0,25c	0,80 to 1,00d	0,025	0,025	0,30	0,30	0,10	—	0,30	0,50
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 elements from scrap or other material used in the production process.However,residual elements may be present provided that they do not affect the mechanical properties and applicability a Maximum values unless otherwise indicated. b Aluminium may be replaced by another element or elements having a similar effect C Grade C10GC,C15GC,C17GC and C20GC can be delivered in two qualities:a)with an aluminium content of Al max.0,015 %,or b)without aluminium and a silicon content of 0,15 %to 0,25 %for hot dip zinc coating d For grades C2C,C20C,C20GC and C25C,a lower manganese content may be specified with a range of 0,20 %.

3. mechanical properties

Table A.3 -Mechanical properties of wires, rods and steel wires not used for heat treatment after cold working

Steel name	Diameter		Delivery Condition
	Diameter		+AR or +AR+PE		+AC or+AC+PE		+AR+C		+AR+C+AC		+AR+C+AC+LC		+AC+C
	above mm	up to mm	Rm max. MPa	Z a min. %	R max. MPa	Z min. %	Rm max MPa	Zmin %	Rm max MPa	Zmin. %	Rmax MPa	Zmin. %	R max. MPa	Zmin. %
C2C	2	5	—	—	——	——	—	—	310	80	350	75	—	——
	5	10	360	75			450	70	300	80	340	75
	10	40	360	75			440	70	300	80	340	75
	40	100	360	75			440	68	300	80	340	75
C4C	2	5							320	77	360	73
	5	10	390	70	330	75	470	66	310	77	350	73	410	70
	10	40	390	70	330	75	460	66	300	77	350	73	400	70
	40	100	390	70	330	75	—				—		—
C8C	2	5	—	—		—	——	—	350	72	390	68		——
	5	10	410	65	360	70	490	63	340	72	380	68	450	65
	10	40	410	65	360	70	480	63	340	72	380	68	440	65
	40	100	410	65	360	70	—	—		—	—		——
C10C C10GC	2	5				一			370	72	410	68
	5	10	430	60	380	70	520	58	360	72	400	68	470	63
	10	40	430	60	380	70	510	58	360	72	400	68	460	63
	40	100	430	60	380	70			—	—		—
C15C C15GC	2	5	——			—			390	70	430	66
	5	10	460	58	400	68	550	56	380	70	420	66	490	63
	10	40	460	58	400	68	540	56	380	70	420	66	480	63
	40	100	460	58	400	68	——	——	—	—	—	—	——	——
C17C C17GC	2	5	—	—	—	—	—	—	430	67	470	63	—	—
	5	10	520	58	440	65	610	56	420	67	460	63	530	60
	10	40	520	58	440	65	600	56	420	67	460	63	520	60
	40	100	520	58	440	65				—
a The values are given only for information.