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Hydraulic Cylinder Honed Tube , Mechanical Tubing Corrosion Resistant

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Brand Name:HY

Certification:ISO9001:2008

Price:Negotiation

Payment Terms:L/C, T/T

Supply Ability:30tons a day

Delivery Time:30days

Company Data

Jiangsu New Heyi Machinery Co., Ltd

Verified Supplier

Contact Person Patty

Business Type: Manufacturer

Officials: Yangshan Industrial Park Huishan District Wuxi Jiangsu China

Quality: Quality Certifitation Available

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Product Details Company Profile

Product Details

Hydraulic Cylinder Honed Tube , Mechanical Tubing Corrosion Resistant

Detailed Product Description

Cold drawn seamless tubes for mechanical and automotive components have the precise tolerance

as per design purpose, especially for the small outside diameter and heavy wall tube which is beyond

the limit of the welded tube size range. By cold drawing, the mechanical properties get increased.

Specifications Comparison table

Items

China

Steel Grade

European

Uion

Steel Grade

American

Steel Grade

Germany

Steel Grade

Precision

Seamless

Tube

GB3639

30CrMo

42CrMo

EN 10305-1

E 215

E235

E355

C35E

C45E

30CrMo4

42CrMo4

AST M

A519

1010

1020

1026

1045

4130

4140

DIN2391

BK S

ST 35

ST 37

ST 45

ST 52

Chemical&mechanical properties

EN 10305/EN 10305-4								DIN2391
Chemical composition %(max)	Steel Gr,	C	Si	Mn	P		S	Chemical composition %(max)	Steel Gr.	C	Si	Mn	P	S
	E215	0.10	0.35	0.70	0.025		0.025		ST 35	0.10	0.35	0.40	0.025	0.025
	E235	0.17	0.35	1.20	0.025		0.025		ST 37	0.17	0.35	1.20	0.025	0.025
	E355	0.22	0.55	1.60	0.025		0.025		ST 52	0.22	0.55	1.60	0.025	0.025
Delivery Condition								Delivery Condition
+C	No heat treatment after the final cold drawing process							BK	Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation
+LC	After the final heat treatment there’s a suitable drawing pass							BKW	The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. Bending, expanding)
+SR	After the final cold drawing process there’s a stress relief heat treatment in controlled atmosphere							BKS	Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree
+A	After the cold drawing process the tubes are annealed in a controlled atmosphere							GBK	The last cold forming process is followed by a nnealing in a controlled atmosphere
+N	After the final cold drawing operation the tubes are normalized in a controlled atmosphere							NBK	The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere
Mechanical Properties								Mechanical Properties
	Steel Gr.	+C	+LC	+SR	+A	+N			Steel Gr.	BK	BKW	BKS	GBK	NBK
Tensile Strength (Rm)(MPa) Min	E215	430	380	380	280	290-430		Tensile Strength (Rm)(MPa) Min	ST 30AL	430	380	380	280	290-430
	E235	480	420	420	315	340-480			ST 37	440	370	380	315	340-470
	E355	640	580	580	450	490-630			ST 52	640	580	580	450	490-630
Yield Strength (ReH)(MPa) Min	E215	≥0.8Rm	≥0.7Rm	280	≥0.5Rm	215		Yield Strength (ReH)(MPa) Min	ST 30AL	≥0.8 Rm	≥0.7 Rm	280	≥0.5 Rm	215
	E235	≥0.8Rm	≥0.7Rm	280	≥0.5Rm	235			ST 37	≥0.8 Rm	≥0.7 Rm	280	≥0.5 Rm	235
	E355	≥0.8Rm	≥0.7Rm	450	≥0.5Rm	355			ST 52	≥0.8 Rm	≥0.7 Rm	420	≥0.5 Rm	355
Elongation %	E215	8	12	16	30	30		Elongation %	ST 30AL	6	10	16	25	25
	E235	6	10	16	25	25			ST 37	6	10	16	25	25
	E355	4	7	10	22	22			ST 52	4	7	10	22	22
a. ST 30Al with Aluminium composition min 0.025%
OD TOLERANCE
OVER		UP TO AND INCLUDING			TOLERANCE
MM		MM			MM+/-
		30			0.10
50		70			0.15
WALL TOLERANCE
The tolerance including ecentricity, shall be +/- 10% with a minimum of +/- 0.10mm

STRAIGHTNESS
Tubes shall not depart from straightness by more than 1.5 mm/m

Company Profile

Jiangsu New Heyi Machinery Co., Ltd

Jiangsu New Heyi Machinery Co., Ltd is specialized in producing precision long small diameter axes and hydraulic piston rod. The products are widely used in mine machinery industry, textile and printing machinery industry and so on. Hydraulic cylinder piston rods are also supplied as the OEM parts for many large and medium enterprises, such as Heli Forklift Ltd, Hangzhou Forklift Ltd, Sanyi Heavy Industry Ltd. We have enjoyed a good reputation with high quality and good after-sale service in recent years. Also our products are exported to USA, Canada, Southeast Asia, Austria, Australia and Brazil etc.

We have set up the principle of “high quality, good reputation”, carried out a series of rigorous quality

management system, and have already passed the ISO9001:2008 international quality system. Our inspection

apparatus and production equipment are advanced and superior, that ensure the product of high quality.

We have complete piston rod manufactured equipment covering all processes. The critical processes of heat

treatment and chrome plating are finished in our own company, which ensure the quality control of the key

technical requirements.

Our factory is located in Wuxi which is famous for the peaches. The transportation is very convenient, only

30 minutes to Wuxi Airport and railway station. About 1 kilometer from the entrance of the expressway access

to Shanghai. The factory covers an area of about 25000 square meters and has more than 200 employees,

among which more than 20 are technical engineers.

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