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seamless steel honing pipe

Honing seamless steel pipes produced by undergo cold forcing and annealing for a cured tensile strength reaching over 52kg/cm2,before the pipes are milled by precision machinery,regulating the tolerance in inner diameter at an H8-H9 level,with surface roughness at between Ra 0.2μm-Ra 0.8μm,which helps to extend the life cycle of the cylinder,and reduces the wear and tear of the seal.The maximum inner diameter of the cylinders produced by our factory reaches 1000mm,with maximum buffing reaching ID length 13000mm.

Product Details

seamless steel honing pipe

Products Description

Product Name

Standard

DIN2391, EN10305, ASTM A519, GB/T 3639-200

Material

Q355B Q355D C20,ST52,E355 SAE1026.CK45 4130 4140 STKM 13C

Heat treatment

BK+S

Specification

 Outer diameter(mm) : 40-480mm

I.D Tolerance

H8-H9

Length

Fixed Length, Random Length(3--9m)or as requests of customers

Straightness

0.5-1/1000

ID roughness

RA 0.1-0.8micron(max)

Payment term

FOB, CFR, CIF ,EXW, FCA and so on

MOQ

3 tons

Technology

Honed & SRB(SKIVED AND ROLLER BURNISHED )

Application:

 hydraulic cylinder, swivel crane, injection machine and so on 

Conservation

anti rust oiled inside and outside surface, plastic caps in both ends

Package

 bundle with steel strip and knitting strip, or wooden case

seamless steel honing pipe

Steel Grade

C

SI

Mn

P

S

Cr

Ni

Cu

20#

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.250

0.250

45#

0.42-0.50

0.17-0.37

0.50-0.80

0.035

0.035

0.250

0.250

Q345B

≤0.2

≤0.5

1.00-1.60

0.030

0.030

0.030

0.250

0.08

Q345D

≤0.2

≤0.5

1.00-1.60

0.030

0.030

0.250

0.250

0.15

25Mn

0.22-0.29

0.17-0.37

0.70-1.00

0.035

0.035

27SiMn

0.22-0.32

1.10-1.40

1.10-1.40

0.035

0.035

0.300

0.300

E355

≤0.2

≤0.55

≤1.6

0.025

0.025

SAE1026

0.22-0.28

0.15-0.35

0.60-0.90

0.040

0.050

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