Product Details

DIN 2391 ST52 seamless steel honed tube for hydraulic cylinder

Honed tube for hydraulic cylinder
Standard	DIN2391
Material	ST45, ST52, E355, E355SR, STKM13C, SAE1026, 20#, Q235B, CK45...
Heat treatment	BK+S
Specification	Outer diameter(mm)	Inner diameter(mm)
	50-300mm	40-250
I.D Tolerance	H8-H9
Length	3-9m (Customers usually choose the 4~5.8m)
Straightness	1/1000
ID roughness	RA 0.4micron(max)
Technology	Honed & SRB(SKIVED AND ROLLER BURNISHED )
Scope	Honed tube for hydraulic cylinder, swivel crane, injection machine and construction machine application

Material	C	Si	Mn	S(≤)	P(≤)	Cr	Ni	Mo	other
C20#	0.17—0.23	0.17—0.37	0.35—0.65	0.035	0.035	≤0.25	≤0.30		Cu≤0.25
CK45#	0.42—0.50	0.17—0.37	0.50—0.80	0.035	0.035	≤0.25	≤0.30		Cu≤0.25
Q345B	≤0.20	≤0.55	1.00—1.60	0.040	0.040	V:0.02-0.15	Nb:0.015-0.06	Ti:0.02-0.20	Alt≥0.015
ST52 E355 16Mn	≤0.20	≤0.55	1.00—1.60	0.045	0.045	V:0.02-0.15	Nb:0.015-0.06	Ti:0.02-0.20	16Mn
25Mn	0.22—0.30	0.17—0.37	0.70—1.00	0.035	0.035	≤0.25	≤0.25
27SiMn	0.24—0.32	1.10—1.40	1.10—1.40	0.030	0.030
42SiMn	0.39—0.45	1.10—1.40	1.10—1.40	0.030	0.030
42CrMo	0.38—0.45	0.17—0.37	0.50—0.80	0.025	0.025	0.90—1.20		0.15—0.25

Processiong form	I.D	length	straightness	I.D tolerance	I.D rounghness
Cold rolled	20-100	≤10M	0.3-1.0	H7-H9	0.4-1.6
Cold drawn	76-245	≤12M	0.3-1.0	H7-H9	0.8-1.6
honed	40-180	≤7M	1000	H7-H9	0.4-0.8
SRB	63-180	≤7M	1000	H7-H8	0.1-0.4

Comapny profiles:

Liaocheng Kuncheng Pipe Co.,Ltd is an professional china supplier of steel pipe,We specialized in producing all kinds of steel pipes,including SS and MS steel pipe,alloy steel pipe etc,Round ,square and rectangular steel pipe,galvanized steel pipe etc.Which are all well sold in domestic and overseas markets.

We also provide all kinds of hot rolled or cold drawn steel plates,coil and other steel goods.

If you have any steel pipe inquiry,pls inform me freely.My contact information is following:

Amy(Ms.)

Mob:+86 15954925206(wechat)

Fax:+86 635 2112698

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Website: http://kcsteelpipe.en.china.cn