Product Details

Company Information

bicycle steel pipes SAE4130 4140 BKS cold drawn tube

Yantai Xinpeng Steel Pipe Co., Ltd,established in Dec 1992, with

registered capital of 5 million Yuan, we have more than 20 years

experience in manufacturing and exporting steel pipe. Our company is equipped with JLB250T hydraulic cold drawn

machine set,LD120 precision cold rolled machine set,multple precision straightening

machine,box heat treat furnaces(8000-10000mm).

USED

Our company mainly produces various specifications of cold drawn,rolled

precision steel tube,hydraulic cylinder tube and SRB Tube, which are widely

used in such industries as hydro-cylinder, automobile, engineering machinery,

textile machinery, printing machinery, oil drilling, etc. Our company is also the

distributor of several domestic well-known steel tube plants in Shandong, and

mainly distributes seamless steel tubes of all kinds of materials.

USED FOR HYDRAULIC CYLINDER TUBE

Chemical composition

Mechanical property

Mechanical Property
Delivery Condation	Cold draw+stress-relieved(BK+S)(SR)			Cold finished (hard)(BK)
Steel Grade	Rm Mpa	ReH Mpa	Elongation	Rm Mpa	Elongation
20#	≥520	≥375	≥15	≥550	≥8
45#	≥600	≥520	≥10	≥640	≥5
16Mn(Q345B Q345D)	≥600	≥520	≥14	≥640	≥5
25Mn	≥600	≥510	≥15	≥640	≥5
27SiMn	≥760	≥610	≥10	≥800	≥5
St45	≥520	≥375	≥15	≥550	≥5
E355(ST52)	≥600	≥520	≥14	≥640	≥5
SAE1026	≥600	≥510	≥15	≥640	≥5