Precision Seamless Steel Pipe Tube

Nm600 Wear Resistant Steel Plate

03/11/2024

42 Inch Seamless Steel Pipe

03/11/2024

Precision Seamless Steel Pipe Tube

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Honed Tube Material:C20 CK45 E355 ST52 SAE1026 4130 4140 STKM 13C
Honed Tube Size:I.D:30mm-400mm; O.D:40mm-480mm
Honed Tube Length:Fixed length, Random length or as requests of customers
Honed Tube Application: Hydraulic cylinder, Engineering machinery, Metallurgical machinery,Plastic machinery, Hoisting machinery, Road construction machinery, Textile machinery

Chemical Composition:
Steel grade	Chemical composition,%
	C	Si	Mn	P	S	Cr	Ni	V	Al
	C	Si	Mn	≤ ≥
C20	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.250	0.250	/	/
CK45	0.42-0.5	0.17-0.37	0.5-0.8	0.025	0.020	0.250	0.300	/	/
Q345B	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.030	0.250	0.080	/
Q345D	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.250	0.250	0.150	0.015
E355(ST52)	≤0.22	≤0.55	≤1.6	0.025	0.025	0.250	0.250	/	/
SAE1026	0.22-0.28	0.15-0.35	0.6-0.9	0.040	0.050	/	/	/	/
4130	0.28-0.33	0.15-0.35	0.40-0.60	0.040	0.040	0.80-1.10	/	/	/
4140	0.36-0.43	0.15-0.35	0.75-1.00	0.040	0.040	0.80-1.10	/	/	/

Mechanical Property:
Delivery condition	cold finished(hard)(BK)		Cold drawn and stress-relieved(BK+S)
Steel grade	Rm MPa	Elongation A5(%)	Rm MPa	ReH MPa	Elongation A5(%)
C20	≥550	≥5	≥520	≥375	≥15
CK45	≥645	≥5	≥600	≥520	≥10
Q345B	≥640	≥5	≥600	≥520	≥14
Q345D	≥640	≥5	≥600	≥520	≥14
E355(ST52)	≥640	≥5	≥600	≥520	≥14
SAE1026	≥640	≥5	≥600	≥520	≥15