Product Details

About our products

Commodity	Hydraulic Parts Using Non Alloy CK45 Cold Drawn Tube
Items	Seamless steel tube	Cold drawn/rolled tube	Honed tube
Length	According to the customer’s need
Tolerance	H8 H9,H10 or as customer’s need
Surface roughness	Ra0.2-0.8µm
Standard	Round pipe: GB/8163-2008, GB 8162-2008, ASTM A 106, DIN2391, 1 ASTMA519
Grade	Q345,10#-45#,ST35-ST52,16Mm
Application	Hydraulic cylinder, automobile, oil drilling, textile machinery,etc.
Inspection	With hydraulic testing, eddy current and infrared test.
Normal Seaworthy Packing	1. Bundle packing. 2. Beveled end or plain end or varnished as per buyer's requests. 3. Marking: as per customer's requests. 4. Painting varnish coating on the pipe. 5. Plastic caps at ends or according to your request.
Delivery Time	Less than 25days after the advanced payment
Payment Terms	T/T or L/C
Outer diameter	30-250mm
Finally condition	BK BKS BKW NBK GBK

Chemical composition of Material:

Steel grade	Chemical composition,%
	C	Si	Mn	P	S	Cr
				P	S	Cr
				≤
St45 (20#)	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	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	/
STKM 13C	≤0.25	≤0.35	0.3-0.9	0.04	0.04	/
Q345B	≤0.2	≤0.5	1.0-1.6	0.03	0.03	0.30
CK45	0.42-0.50	0.17-0.37	0.5-0.8	0.035	0.035	0.25

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(%)
St45	≥550	≥5	≥520	≥375	≥15
20#	≥550	≥8	≥520	≥375	≥15
St52 (E355)	≥640	≥5	≥600	≥520	≥14
SAE1026	≥640	≥5	≥600	≥510	≥15
STKM 13C	≥550	≥8	≥520	≥375	≥15
Q345B	≥640	≥5	≥600	≥520	≥14
CK45	≥640	≥5	≥600	≥520	≥10

ABOUT OUR COMPANY

we are the top 5 manufacture of precision seamless steel tube in China ,and we have past ISO 90012008 verified certification ,our company mainly produces various specifications cold finished steel tube which are widely used in hydraulic cylinder ,automobile ,oil drilling ,engineering machinery ,and so on ,so welcome to our comay to visting and negotiate business .

SIZE OF XINPENG

our packaging and shipping

Our Services

1. 24hours service via phone ,wechat alibaba trade manager.

2. Good package and best container method.

3. Professional explanation with professional online service

4. Factory manufacturer can assure the best quality.

5. Good delivery time as 15-30 days .

6. 3 years product assurance after usuage.

7. Good quality process in our own factory,

each lot tube have their own 5 years'life card.

we always do our best to make deal with any clients, welcome to inquiry at any time!