COLD FORMING MATERIALS

C20C CHQ line

MATERIALSENGINEERINGCREATION GROUP

product Center / C20C CHQ line

C20C 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 %.