Product Description

Specifications/Special Features:

Usages: applicable to hydraulic pressure, pneumatic cylinder.
Quality standard: DIN 2391, DIN EN 10305

E355+SR (EN 10305-1) / St52-3 BK+S (DIN 2391) The seamless tube for hydraulic cylinders, obtained from high quality cold drawn tubes, available in a wide dimensional range.
Process: raw materials-cold drawn/rolled-heat treatment (BKS)
Dimensions:
Outer diameter: 6-720mm
Wall thickness: 5-40mm
Length: not more than 12 meters
Delivery condition: cold worked, stress relieved, annealed, normalized
Packing:
With anti-rust oil on inner diameter of each pipe, tube caps on both ends, hexagonal bundles of max 3000kg with several steel strips, nylon bag and waterproof paper packing each bundle
Of course, customers can customize other packing way.
Protection:
AISI 1020 honed tube is supplied with caps at the ends and protected internally and externally with oil that provides temporary protection against oxidization
Special surface protection can be agreed upon
Our services:
Third party inspection acceptable
Certifications: SGS, BV

Size
Processing	Cylinder diameter	Length /mm	Straightness	Size accuracy	Wall thickness/mm	Inner bore roughness
Cold drawn/rolled	ID28-400	≤12M	0.3-1.0m m/m	H8-H11	±5%	0.4-1.6um
Honed/SRB	ID30-800	≤12M	0.3-1.0m m/m	H8	±5%	0.1-0.4um

Technical Specifications
Steel Grade	E355 (EN 10305-1) / St52-3 (DIN 2391)
Heat Treatment	+SR (EN 10305-1) / BK+S (DIN 2391)
Inside diameter range	Ø40 to Ø250 mm
Tolerance Class	ISO H8
Standard Lengths	5 – 8 meter (can be supplied in special lengths upon request.)
Inside Surface Roughness	Ra ≤ 0.22 µm
Local Deviation	max. 1 mm : 1000 mm
Total Deviation	Tubes with length ≤ 6 m: max. 3.5 mm : 1000 mm
Tubes with length > 6 m: for each meter over 6 m the tolerance must be increased by 0.5 mm

Chemical Composition

C	Mn	Si	P	S
max. 0.22	max. 1.60	max. 0.55	max. 0.025	max. 0.025

Mechanical Properties

Rm – Tensile Strength (N/mm2)	Rp0.2 – Yield Point (N/mm2)	A5 –Elongation (min. %)
min. 580	min. 435	10

Primary Competitive Advantages:

Country of Origin
Form A /FORE E
Packaging
Price
Product Features
Quality Approvals
Reputation
Service
Small Orders Accepted

We are an international distributor of honed ID tubing, chrome plated OD/ID tubing, heavy wall mechanical tubing,and hydraulic fluid line tubing, DOM Steel honed tubing. All tubing can be cut to any specified length and shipped the same day. Special order sizes are available upon request.
The honed tubes suitable for various kinds of Precision Mechanical Tubes, honed cylinder tubing and Hydraulic Cylinder, Construct use Multi Joint Tubes, Steel Axis Pipe, Injection Machine and Robotic Arm.

Liaocheng Kuncheng steel pipe CO., Ltd.

Mobile:+8613184174934(wechat,whatsapp)

Skype:live:mrhrc

Place of Origin	Shandong, China
Certification	CE
Thickness	0.5, 5
Application	Hydraulic Pipe
Surface Treatment	Chrome Plated Tubing
Technique	Cold Drawn
Standard
Alloy Or Not	Non-alloy
Grade
Outer Diameter	50 - 273 mm
Secondary Or Not	Non-secondary
Special Pipe	honed tubing
Section Shape	Round

DOM CDS St52-3 BK+S (DIN 2391) seamless honed tube for Dump Hoist

Product Features

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