Roll Ring Cold Rolling Ribbed Bar

Technical details
The three-dimensional roll of cold-rolled ribbed bar is a kind of steel bar with three sides crescent shaped, which is formed by hot-rolled wire rod after multi-channel cold-rolled reducing, one rib pressing and internal stress relieving. Cold rolled ribbed steel bar in prestressed concrete members is the replacement product of cold drawn low carbon steel wire. In cast-in-place concrete structure, it can replace grade I steel bar to save steel. It is a better kind of cold-worked steel of the same kind.

Brand list

分类	牌号	粘结剂	硬度/HRA	密度（g/cm3)		抗弯强度Mpa		抗压强度Mpa
Classification	Grade	Binder(wt%)	Hardness	Density		TRS		Compressive Strength
	HY07	6	88.5	14.9		2800		4300
	DG1X	8	88.0	14.7		2850		4100
	DG06	10	86.5	14.5		2850		3800
	DG1A	10	87.0	14.5		2800		3900
	DG2	13	58.0	14.2		2700		3700
DG-series	DG2A	15	84.5	14.0		2650		3500
(Co-Ni-Cr)	DG4	18	83.5	13.7		2580		3300
	DG5	20	82.0	13.6		2580		3100
	DG6	25	80.0	13.1		2500		2900
	DG7	27	78.5	12.9		2400		2700
	DG9	30	77.5	12.7		2300		2600
	DG2-M	13	86.7	14.2		2750		3900
M-series	DG2A-M	15	85.3	14.1		2750		3800
(Cobalt)	DG4A-M	18	84.5	13.7		2800		3500
	DG5A	22	81.5	13.4		2650		3000
	DG5-M	20	83.5	13.5		2600		3300
	DG6-M	25	82.5	13.1		2600		3100

Other information

Grade		Cerametal	Sandvik	Kennametal	Sintermet	Mistubishi		Saramant	Taegutec		ZCC
old	new					old	new		old	new
DG1F	HY07	CE3(CTC12A)	H6T	MN0				VG07	KHR01	T065
DG1X					SM80	GA5210	GX210
DG1A		CE51(CTC20A)	C10C	MN04	SM63	GA5315	GX315	VN10	KHR05	T11L	YGR20
DG06
DG2		CE65(CTC20A)				GA5320	GX320		KHR30	T14L	YGR25
DG2A		CE79(CTC30A)	C15C	MN2	SM59	GA5328	GX330	VN40	KHR10	T15M	YGR30
DG2-M											YGH25
DG2A-M											YGH30
DG4		CE103(CTC35A)				GA5335	GX335	VN45	KHR40	T17L	YGR40
DG4-M											YGH40
DG5		CE107(CTC40A)	C20C	MN4	SM60	GA5540	GX540	VN50	KHR60	T20M	YGR45
DG5A	HY22	CE112(CTC44A)				GA5250			KHR70
DG5-M											YGH45
DG5A-M											YGH50
DG6		CE114(CTC50A)	C25C	RCV5	SM61	GA5350	GX350		KHR75	T25H	YGR55
DG6-M											YGH55
DG7				G55		GA5355			KHR80
DG7-M
DG9		CE115(CTC60A)	C30T	RCV5	SM62	GA7365	GX365	VN77	KHR90	T30M	YGR60
DG9A	HY30		H30P	MN6				VN76	KHR90A
DG9-M											YGH60