Specifications

pipe manufacturer in china
1. ID 30-550mm
2. Max length 12 meters.
3.Technology:Cold drawn
4.High reputation

asian tube

Product Description:

 

Honed tube for hydraulic cylinder and pneumatic cylinder
Manufacturer	Yantai Xinpeng Steel Pipe Co.,Ltd
Standard	DIN2391 EN10305
Material	ST44 ST45 ST52 E355 STKM13C
Heat treatment	BK+S
Specification	Outer diameter(mm)		Inner diameter(mm)
	50-300mm		40-250
I.D Tolerance	H8-H9
Length	3-9m
Straightness	1/1000
ID roughness	RA 0.4micron(max)
Technology	Honed & SRB(SKIVED AND ROLLER BURNISHED )
Contact	SKYPE:judy_gao1108
	Mobile phone: 0086-535- 6835398

 

 

Main Production Progress:

 

Raw material

→

Cold drawn

→

Heat treatment BK+S

→

Honed & SRB

→

Packing

 

 

Chemical composition of Material:

 

 

Steel grade	Chemical composition,%
	C	Si	Mn	P	S	Cr
				≤
20#	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.25
16Mn	≤0.2	≤0.5	1.00-1.60	0.03	0/03	0.25
ST52(E355)	≤0.22	≤0.55	≤1.6	0.025	0.025	0.25
SAE1026	0.22-0.28	0.15-0.35	0.6-0.9	0.04	0.05	/

 

 

Mechanical Property of Material:

 

Delivery condition	cold finished(hard)(BK)		Cold drawn and stress-relieved(BK+S)
Steel grade	Rm MPa	Elongation A5(%)	Rm MPa	ReH MPa	Elonggation A5(%)
20#	≥550	≥8	≥520	≥375	≥15
16Mn	≥640	≥5	≥600	≥520	≥14
ST52	≥640	≥5	≥600	≥520	≥14
SAE1026	≥640	≥5	≥600	≥510	≥12

 

Finished Products

 

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