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普莱儿机械
Prior Machinery (Shanghai) Co., Ltd
Ready to hone tube
    Publish time 2018-04-03 16:13    

         

Products: Ready to hone tube / precision cold-drawn steel tube

Standard: EN10305-1, DIN2391, GB/T 3639

Steel grade: ST52/16Mn, 20#, 45#, 25Mn, 27SiMn

Description: precision cold drawn seamless steel tube is used for mechanical machinery and hydraulic equipment, with high accuracy and cleaning & smooth surface. Choosing this precision cold drawn seamless tube to produce mechanical machinery and hydraulic equipments, which can greatly save machining time, improving material usage and reduce the costs, thus it is an efficient way to increase the enterprises profits.


Chemical Composition 

 

C

Si

Mn

S

P

Cr

Ni

20#

0.17-0.23

0.17-0.37

0.35-0.65

0.035

0.035

0.25

0.30

45#

0.45-0.5

0-0.37

0.50-0.80

0.035

0.035

0.25

0.30

16Mn/ST52

0.20

0.55

1.0-1.60

0.045

0.045

 

0.015-0.06

25Mn

0.22-0.30

0.17-0.37

0.70-1.00

0.035

0.035

0.25

0.30

27SiMn

0.24-0.32

1.10-1.40

1.10-1.40

0.03

0.03

 

 


Tolerance:

ID (mm)

WT (mm)

OD(mm)

Length (m)

straightness 

0.08-0.30 

±5% - ±7% 

±0.30 

≤13.5 

≤0.3mm/1000mm 


Mechanical Properties:

 

BK

BK+S

T.S

E

T.S

Y.S

E

Hardness

δb N/mm²

δ5%

δb N/mm²

δb N/mm²

δ5%

HB

20#

≥580

5

≥550

≥470

10

175

45#

≥645

4

≥600

≥520

10

207

16Mn/ST52

≥640

4

≥580

≥420

10

190

25Mn

≥640

5

≥600

≥520

14

195

27SiMn

≥800

5

≥760

≥510

10

230

 














 



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