Skived&roller burnished tube

Skived&roller burnished tube

Skiving&roller burnishing technology is a new technology for production of hydraulic cylinder barrels. It provides us more efficiency,much better roughness of bore,and internal surface hardness through full automatic operation. Our skiving&roller burnishing machine is of US version and can ensure better straightness of tubes and bore roughness of 0.2um max. In our company, only metric sizes with ID like 70mm,80mm,90mm,100mm,till 300mm can be skived&roller burnished. 

Size Range:

ID	Wall Thickness(MM)
MM	4	5	6	6.5	7.5	8.5	10	10.5	12.5	14	15	20	25
70
80
90
100
110
120
130
140
150
160
170
180
190
200

Technical Specifications:
Specifications&material:DIN2391-2 ST52、ST52.3、ST52.4；EN10305-1 E355、C45E、34CrMo4、42CrMo4； ASTM A519 SAE1020、SAE1026、SAE1045、SAE4130、SAE4140；

Tolerance of ID of skived&roller burnished tubes:

ID / MM	H7	H8	H9	H10
30<ID≤50	+0.025/-0	+0.039/-0	+0.062/-0	+0.100/-0
50<ID≤80	+0.030/-0	+0.046/-0	+0.074/-0	+0.120/-0
80<ID≤120	+0.035/-0	+0.054/-0	+0.087/-0	+0.140/-0
120<ID≤180	+0.040/-0	+0.063/-0	+0.100/-0	+0.160/-0
180<ID≤250	+0.046/-0	+0.072/-0	+0.115/-0	+0.185/-0
250<ID≤315	+0.052/-0	+0.081/-0	+0.130/-0	+0.210/-0
315<ID≤400	+0.057/-0	+0.089/-0	+0.140/-0	+0.230/-0
400<ID≤500	+0.063/-0	+0.097/-0	+0.155/-0	－

Chemical Composition:

Material	Chemical composition
	C  (%)	Si  (%)	Mn  (%)	P  (%)	S  (%)	Cr (%)	Mo (%)
SAE1020/AISI1020	0.17-0.24	0.17-0.37	0.4-0.7	0.030 max	0.025 max	－	－
SAE1026/25Mn	0.22-0.28	0.15-0.35	0.6-0.9	0.030 max	0.030 max	－	－
SA1045/S45C,CK45,C45E	0.42-0.50	0.17-0.37	0.5-0.8	0.030 max	0.025 max	－	－
ST52/ST52.3/ST52.4/E355	0.22 max	0.55 max	1.60 max	0.025 max	0.025 max	－	－
27SiMn (Chinese steel grade)	0.24-0.32	1.1-1.4	1.1-1.4	0.035 max	0.035 max	－	－
SAE4130/34CrMo4	0.28-0.33	0.15-0.35	0.4-0.6	0.035 max	0.035 max	0.9-1.2	0.15-0.30
SAE4140/42CrMo4	0.38-0.45	0.4 max	0.6-0.9	0.035 max	0.035 max	0.9-1.2	0.15-0.30

Mechanical Properties:

Material	Requirement of mechanical  properties
	BK		BKW		BKS			Normalized
	T.S / Mpa Mpa min	E / % % min	T.S /Mpa Mpa min	E / % % min	T.S / Mpa Mpa min	Y.S / Mpa Mpa min	E / % % min	T.S /.Mpa Mpa min	Y.S / Mpa Mpa min	E / % % min
A106 B/SAE1020	580 Min	5 Min	520 Min	8 Min	As per requirement			As per requirement
SAE1026/25Mn	640 Min	5 Min	－	－	600 Min	520 Min	14 Min	680 Min	570 Min	18 Min
SA1045/S45C,CK45	645 Min	4 Min	630 Min	5 Min	As per requirement			As per requirement
ST52/ST52.3/E355	640 Min	4 Min	580 Min	7 Min	580 Min	420 Min	10 Min	As per requirement
27SiMn	800 Min	5 Min	－	－	760 Min	610 Min	10 Min	As per requirement
SAE4130/34CrMo4	－	－	－	－	720 Min	580 Min	10 Min	As per requirement
SAE4140/42CrMo4	－	－	－	－	855 Min	689 Min	10 Min	As per requirement

Contact:

Ms Alice Chen 

Tel:0086 22 26625616;

Fax:0086 22 26631216;

Mobile:0086 15822528401;

Skype:honghong6085;

Viber/Wechat:15822528401;