Product Details

Product Name	cylinder using seamless steel pipe
Outer Diameter	30-250mm
Wall Thickness	2-30mm
ID tolerance	H7 H8 H9
Material Grade	20# 45# Q345 25Mn 27SiMn E355
Package	Standard packing or as client’s request
Delivery Condition	BK/BKW/BKS/GBK/NBK
Delivery Time	Within 20-30 days after receiving downpayment or as client’s request
Trade Terms	FOB Yantai, Qingdao, or as client’s request
Payment Terms	T/T or L/C or as client’s request
Supply Ability	500 metric tons/per month

1.Hydraulic Cylinder Tube------Main products of Xinpeng

Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts.

We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.

2.Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.

3.SRB tube ----- used in Elevatorbuffer and Hydraulic Cylinder .

This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.

Technique and tolerance

Working Method	Range	Size of ID	Tolerance
			ID tolerance			WT(mm)	Ovality	Curvature
			H8	H9	H10	WT(mm)	Ovality	Curvature
Cold Drawn	25-250	>30-50	+0.0390	+0.0620	+0.1000	±5% to 7.5% ID>210mm ±10%	≤0.10-0.20	0.3
Cold rolling	25-150	>50-80	+0.0460	+0.0740	+0.1200
Cold drawn-hone	40-250	>80-120	+0.0540	+0.0870	+0.1400
Cold drawn-SRB	50-250	>120-180	+0.0630	+0.1000	+0.160
Cold drawn-polish	40-250	>180-250	+0.0720	+0.1150	+0.1850
Cold drawn-polish-SRB	50-250	Other size and technique parameter upon request

Mechanical Property

Delivery Condition	Cold drawn+stress-relieved(BK+S)(SR)			Cold finished(hard)(BK)
Steel Grade	Tensile strength (Rm Mpa)	Yield strength (ReH Mpa)	Elongation A5%	Tensile strength (Rm Mpa)	Elogation A5%
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

Our Company

We produce all kinds of specification seamless steel tube , such as cold drawn/rolled precision seamless steel tube ,honed tube ,SRBtube ,etc. And these products are application for hydraulic cylinder, automobile, oil drilling and so on.

Our Product Process

Application

Widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machiner...

Certification

Passing Verified System ISO9001, all of our products are in tight tolerance and high quality control to make sure to satisfy every client.

Our Service

1.passing ISO9001 system verified and in high quality control

2.with more than 20 years trading experience

3.alibaba trade assurance supplier

ducts with superior quality and competitive price

5.treating every client sincerely to satisfy them

Waiting for your contact!