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SCNM439

 We are professional SCNM439 JIS SNCM439 Forged forging Steel Round Bars Rods Square rectangular rectangle Flat Hex Bars,SCNM439 Forged Forging Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tube tubings barrels Casing Cases Shells cylinders hubs housings,SCNM439 Seamless Rolled Steel Rings,SCNM439 Forged Forging Steel rings,SCNM439 Forged Forging Steel Blocks Discs Disks Plates,SCNM439 Forged Forging Steel Gear Shafts Pinion Shafts Spindles,and other SCNM439  forged forging parts Forged Products forged forging pieces forged forging steel components materials from china

 

For quenching and tempering.

Steel grade

Chemical contents [%]

C

Mn

Si

P

S

Cr

Ni

Mo

W

V

Ti

Cu

SCNM439 JIS SNCM439

0,32- 0,4

0,5 -0,8

0,17 -0,37

MAX 0,035

MAX 0,035

0,9-1,2

0,9- 1,2

0,15-0,25

MAX 0,2

MAX
0,05

MAX 0,05

MAX 0,25

 

 
Technological treatment processes

Possibility of application

Temperature, °C

Plastic forming Forging

+

850-1050

Rolling

+

850-1180

Heat treatment Heat hardening Hardening

+

820-860

Tempering

+

540-680

Annealing Normalizing

+

850-880

Annealing Softening

+

650-700



1.6511 Value
Mechanical properties
Tensile strength Rm (MPa) >=830
Elongation A5 (%) >=15
Reduction of area Z (%) >=55
Yield point Re (R0,2) (MPa) >=690
Notched bar impact work KU2 (J) >=96
 
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