Product Details

company detail

DIN 2391-1 St52 Honed Seamless Steel Tube For Hydraulic Cylinder

YanTai XinPeng Steel Pipe Co.,Ltd located in Yantai, a beautiful coastal city in Jiaodong Peninsula, our company is in the (APEC) Science & Technology Industrial Park, urban area of Yantai, with convenient transportation. Established in December 1992, with registered capital of 5 million yuan .

Our company mainly produces various specifications of cold drawn,rolled precision steel tube,hydraulic cylinder tube and SRB Tube, which are widely used in such industries as hydro-cylinder, automobile, engineering machinery, textile machinery, printing machinery, oil drilling, etc. Our company is also the distributor of several domestic well-known steel tube plants in Shandong, and mainly distributes seamless steel tubes of all kinds of materials.

cylinder tube

Hydraulic cylinder tube

The hydraulic cylinder tube is the main part of the hydraulic cylinder.The inner
hole of the hydraulic cylinder tube usually precision processed by boring,reaming,rolling

or honing.By these process can ensure the piston,sealing elements and the support
elements move smoothly,then ensure the sealing effect and reduce the abrasion.The
hydraulic cylinder tube will bear big pressure,so need high strength and stiffness.

Chemical Component:

Steel Grade	Chemical Composition (%)
	C	Si	Mn	P	S	Cr
	C	Si	Mn	≤
St45	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.250
ST52(E355)	≤0.22	≤0.55	≤1.6	0.025	0.025	0.25
SAE1026	0.22-0.28	0.15-0.35	0.60-0.90	0.040	0.050	/
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	0.035	0.035	0.300
20#	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.250

Mechanical property

Delivery condition	BKS Cold Drawn & Stress-Relieved
Steel Grade	Rm MPa	ReH MPa	Elongation (%)
ST45	≥520	≥375	≥15
ST52(E355)	≥600	≥520	≥14
SAE1026	≥600	≥510	≥15
16Mn	≥600	≥520	≥14
20#	≥520	≥375	≥15