Product Details

ABOUT OUR COMPANY I WANT TO SAY:

we are the manufacturer of seamless steel tube ,and we are the top 5 manufacturer in China ,our company mainly produces various specifications of seamless steel tube ,such as cold drawn/rolled seamless steel tube ,hot rolled seamless steel tube ,hydraulic cylinder steel tube ,SRB/honed steel tube and so on .ourcompany established in 1992 ,so we have more than 20 years in the steel tube .so you can trust us ,and welcome to our company to visiting and negotiate business .

ABOUT OUR PRODUCTS

Products name:	AISI 1045 Cold drawn 40mm diameter steel tubing With Competitive Price
Size:	OD	30mm-250mm
	Wall Thickness	2mm-30mm
Steel material	10#-45#,st35-st52,q345,16Mn
Standard	GB/T 8162,GB/T8163,DIN,JIS,ASTM
Payment:	T/T,L/C
Delivery time	7-30 days after we confirm your order
Packing	We usually bundle with steel strips ,branding parcel or wooden box outside or according to the customer’s acquirement
Tolerance	H8,H9,H10
Sample	we accept your sample requirement
Order	Small order is acceptable(1 ton)
Factory	welcome to our factory at anytime
Certification	ISO 9001-2008
Test	Eddy current test ultrasonic test

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 PROPETY 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