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Alloy Or Not: Non-alloy
Surface Treatment: chrome plated
Technique: ERW
Application: Hydraulic Pipe
Secondary Or Not: Non-secondary
Place of Origin: China (Mainland)
Section Shape: Round
Outer Diameter: 40-1000 mm
Thickness: 0.7-38.1 mm
Grade: Mo
Grade: 16Mo
Standard: ASTM
Standard: ASME B36.10M-2004,ASME B36.19M-1985,ASME B36.19M-2004,ASTM A1020-2002,ASTM A179-1990,ASTM A182-2001,ASTM A199,ASTM A213-2001,ASTM A213M-2001,ASTM A312-2001,ASTM A312M-2007
Technique: seamless
Inside diameter: from 40 to 1000mm
Straightness: 0.5/1000
Tolerance EXT: DIN2391
Tolerance INT: ISO H8
Roughness (Ra): 0.2 to 0.4um
OEM: yes
Material: alloy steel and special steel
Type: treatment,honing or skiving
Experience: 13 years

Specifications

 

Product : ISO H8 chrome plated honed pipe for hydraulic cyliders 

 

Grade

ST 52,stainless steel, alloy steel and special steel

Inside diameter 

40 to 1000mm (skiving tube ID max 500mm

Max length 

20m.

Straightness

0.5 /1000

Tolerance EXT

DIN 2391

Tolerance INT

ISO H8

Roughness(Ra)

0.2 to 0.4μ

Type

cold drawing, normalizing treatment, honing or skiving

 

  

CHEMICAL COMPOSITION (%)

 

Si

(Max)

Mn

(Max)

C

(Max)

P (Max.)

S

(Max)

0.55

1.60

0.22

0.025

0.025

 

 

MECHANICAL PROPERTIES

 

Tensile strength 

Min

Yield Point 

Min

Elongation 

% Min

630 N/mm2

560 N/mm2

10

OUR ADVANTAGES 

 

QUALITY

Raw Material

Bao Steel,Tianjin,Chendu etc famous fefinery steel mills

Certification

ISO 9001:2000 International quality system

Warranty Period

12 monthes Normally (Special important customer for 5 years)

Record of Production

keep inspection for 5 years

Production

Equipment

Honing machine at 10 sets,Two lathers machine,Deep hole boring

Honing machine

Producing:ID 38.1mm-600mm max length of 12m,Output 10tons per shift

Lather machine

Length at 5m and 8m separately,Max OD at 500mm

Deep hole boring

Machine length at 9m,OD at 500mm

Roughness of tube

0.2um

Skiving & burnishing machine

Max ID machined 530mm

Surface finish for bar

Plating on bar for Bosch Rexroth,also made chrome,nickel,ceramic,thickness 10um-100um etc.

High Precision

Honed tube(Roughness 0.2um,Straightness less than0.15/1000)

Piston rod(plating thickness 10-100microns,Roughness 0.2,straightness less than 0.15/1000)

Service

International Standard

Tube and rod cut flatly,no chrome marks on surface of rod.

Deliver time

Average deliver time within 25-30 days,Tube output 300tons per month,200tons for bars.

Package

Rod(cardboard that film attached inside,prevent scrath and oil rusting)

Tube(putted rusted oil in inside surface caped at both ends prevent from air rusted)

Any inquiry, please contact us for details.