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27SiMn Hydraulic Alloy Pipe

3 125

 Size:60.3mm-1016mm*8.5mm-80mm

Grade:20#,35#,45#,27SiMn,30CrMnSiA,30MnNbRe and other grades

Operative Standard:GB/T17396-1998 and other technical standard to the buyer’s need.

27SiMn Hydraulic Alloy Pipe

Name

Chemical composition (%)

C

Si

Mn

P

S

Cr

Ni

Cu

Nb

RE

20

0.17~0.24

0.17~0.37

O.35~0.65

0.035

0.035

0.25

O.25

0.20

 

 

35

0.32~0.40

O.17~O.37

O.50~O.80

O.035

O.035

O.25

O.25

O.20

 

 

45

0.42~0.50

O.17~O.37

O.50~O.80

O.035

0.035

0.25

O.25

0.20

 

 

27SiMn

O.24~O.32

1.10~1.40

1.10~1.40

0.035

0.035

0.030

0.030

0.030

 

 

30MnNBRE

0.27~O.36

O.20~0.60

1.20~1.60

0.035

0.035

0.030

0.030

0.030

0.020~0.050

0.02~O.04

Mechanical Property

 Name

 Sample thermal treatment

Tensile strength

ób/MPa

yield point

ó s/MPa

tensile stretch

δ 5(%)

reduction of area (%)

Akv

Aku2/J

HBS≤

20

 

400

245

20

 

 

 

35

51O

305

17

 

 

 

45

590

335

14

 

 

 

27SiNn

(920±20)°Cquench

(450±50)°Ctemper

refrigerant:oil and water

980

835

12

40

39

217

30MnNbRE

(880±20)°Cquench

(450±50)°Ctemper

refrigerant:AC

850

720

13

45

48

 

 
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