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  • 1.8070/21CrMoV5-11 21crmov511 21crmov5.11 CNC Machined Turning Milling Grinding Casting Steel Dummy Bars Heads

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 We are professional 1.8070/21CrMoV5-11 21crmov511 21crmov5.11 CNC Machined Machining Turning Turned Milling Milled Grinding Casting Steel Dummy Bars Heads from china

Chemical Composition (in weight %)

C

Si

Mn

Cr

Mo

Ni

V

W

Others

0.21

0.45

0.45

1.35

1.10

max. 0.30

0.30

-

-


Description
Special structural steel.

Applications
Screws and nuts and forged components for staem engines up to working temperatures of maximum 539
oC. 

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10
3 x N/mm2]: 210 
Density [g/cm
3]: 7.80

 


Soft Annealing
Heat to 650-740
oC, cool slowly.

Hardening
Harden from a temperature of 900-950
oC followed by oil or air quenching.

Tempering
Tempering temperature: 680-740
oC.

Mechanical Properties in Quenched and Tempered Condition

Diameter (mm)

0.2 proof stress (N/mm2)

Tensile stregth (N/mm2)

Elongation (%)

Reduction (%)

Notch impact energy (ISO-V) (J)

Up to 160

540

690-830

16

-

55


0.2 Proof Stress (N/mm2) vs. Temperature (oC)

200oC

300oC

400oC

500oC

510

481

431

373


1% Creep Limit (N/mm2) vs. Temperature (oC)

Hours

450oC

500oC

540oC

10 000

353

235

120

100 000

275

167

68


Creep Rapture Strength (N/mm2) vs. Temperature (oC)

Hours

450oC

500oC

540oC

10 000

441

304

180

100 000

343

211

102

 


Forging
Hot forming temperature: 1100-850
oC. 

Hits:  UpdateTime:2016年12月13日 21:06:49  【Printing】  【Close
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