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250x266 pneumatic cylinder chrome plated inside honed tube

  • Brand BAIHENG
  • Product origin CHINA
These tubes are chrome plated after honing, chrome thickness depends on customer requirement.Name :honed tubes, honing pipe, hydraulic cylinder tubes, pneumatic cylinder tubes, honed pipe, honing tube, seamless honed steel tube, precision tubes, cold drawn honed tubes, skived tubes, skived and Email

These tubes are chrome plated after honing, chrome thickness depends on customer requirement.

Name : honed tubes, honing pipe, hydraulic cylinder tubes, pneumatic cylinder tubes, honed pipe, honing tube, seamless honed steel tube, precision tubes, cold drawn honed tubes, skived tubes, skived and roller burnished tubes, skived pipes, SRB tube, SRB pipe, hydraulic SRB tube, hydraulic cylinder skived tubes

Popular standard and steel grade:

EN10305-1

E355 E235 E410 E470 C45E

DIN2391-1

ST52 ST45 ST52.3

ASTM A519

SAE1020 SAE1045 SAE1026

GB/T

20# 45# 16Mn Q345B Q345D Q345E 42CrMo 27SiMn

 

Application: hydraulic cylinder, pneumatic cylinder,Jack, cylinder barrel

Manufacture Method: cold drawn, cold rolled, Hot rolled+Deep Hole Boring 

Heat Treating Method/Delivery Condition:

 

BK

BKS

GBK

NBK

Q+T

+C

+SR

+A

+N

Q+T

Cold drawn

Stress relieved

Annealed

Normalized

QUENCHED + TEMPERED

 

 Hydraulic & pneumatic tube size and parameters:

 

 

Manufacture

method

Cylinder ID mm

Length

(m

Straightness

(mm/m

Tolerance

on ID

Tolerance

on WT

Roughness

(μm

 

Cold drawn

40-420

≤16M

0.2-0.5

Depends on

 requirement

±8%

0.8-1.6

 

Cold rolled

30-100

≥14M

0.2-0.5

Depends on

requirement

±5%

0.8-1.2

cold drawn-

honed

40-420

14M

0.2-0.3

H8-H9

±8%

0.2-0.8

Cold drawn-skived & burnished

40-300

9M

0.2-0.3

H8-H9

±8%

≤0.4

Deep hole

boring- honed

50-1000

12M

0.2-0.3

H8-H9

±8%

≤0.8

Deep hole

boring- skived

50-300

9M

0.2-0.3

H8-H9

±8%

≤0.4


Mechanical property:

 

Final Supply

Condition

Cold finished

(Hard)(BK

Cold drawn and stress-relieved BK+S or + SR

Hardness HB

Parameters

T.S

obN/mm2

Elongation

δ5%

T.S

obN/mm2

Y.S

OsN/mm2

Elongation

δ5%

20# (A106B, ST45, E255)

≧550

≧8

≧520

≧375

≧12

175

45#(CK45)

≧650

≧5

≧600

500

10

190

Q345B(ST52, E355)

≧640

≧5

≧600

≧520

≧15

190

25Mn

≧640

≧5

≧600

≧510

≧15

195

27SiMn

≧840

≧5

720

600

≧10

210

Chemical Properties:

 

Material

C%

Mn%

Si%

S%

P%

20#

0.17-0.23

0.35-0.65

0.17-0.37

≤0.035

≤0.035

ST45

≤0.21

≥0.4

≤0.35

≤0.025

≤0.025

E255

≤0.21

0.4-1.1

≤0.35

≤0.025

≤0.025

45#

0.42-0.50

0.50-0.80

0.17-0.37

≤0.035

≤0.035

Q345B

≤0.20

≤1.70

≤0.50

≤0.035

≤0.035

E355

≤0.22

≤1.6

≤0.55

≤0.025

≤0.025

ST52

≤0.22

≤1.6

≤0.55

≤0.04

≤0.04

25Mn

0.22-0.29

0.70-1.0

0.17-0.37

≤0.035

≤0.035

27SiMn

0.24-0.32

1.10-1.40

1.10-1.40

≤0.035

≤0.035

 

Tolerance on ID:

ID

Tolerance for ID  (μm)

H7

H8

H9

H10

30

+21

0

+33

0

+52

0

+84

0

>30-50

+25

0

+39

0

+62

0

+100

0

>50-80

+30

0

+46

0

+74

0

+120

0

>80-120

+ 35

0

+ 54

0

+87

0

+140

0

>120-180

+40

0

+63

0

+100

0

+160

0

>180-250

+46

0

+72

0

+115

0

+185

0

>250-315

+52

0

+81

0

+140

0

+210

0

>315-400

+57

0

+89

0

+170

0

+230

0

 

Part of size list (ID*OD)

40*50


100*127


240*273

40*55


110*130


250*266

50*60


120*140


250*280

50*63


120*145


250*300

60*70


125*140


280*323

60*73


125*145


280*325

63*73


140*165


300*320

63*76


140*168


300*356

70*80


150*180


320*340

70*82


160*184


320*356

70*85


160*194


320*370

80*90


170*200


350*370

80*92


180*210


400*420

80*95


200*216



80*100


200*220



90*102


200*232



90*105


200*245



100*114


220*250



100*121


220*273




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