• Name: 1.2738/P20Ni


DIN
AISI
JIS
GB
1.2738
P20Ni
-
3Cr2NiMnMo

Chemical Composition(DIN 17350)


C

Si

Mn

P≤

S≤

Cr

Mo

Ni

0.35

0.20

1.30

0.035

0.035

1.80

0.15

0.90

0.45

0.40

1.60

2.10

0.25

1.20

 

Steel Properties

It is supplied hardened and tempered to 950-1100 N/mm2. Good machinability, excellent polishability, suitable for texturing.Improved through hardenability compared to DIN 1.2311.


Applications

Synthetic plastic moulding dies,for large moulds.


Heat Treatment


Soft Annealing(℃)

Cooling

Hardness(HB)

Hardening( ℃ )

In

Hardness(HRC)

710-740

Furnace

Max.235

830-880

air,oil,thermal
bath 180-220℃

52 HRC



Tempering ( ℃)

100

200

300

400

500

600

700

HRC

52

51

49

46

42

36

28

N/mm2

1790

1730

1620

1480

1330

1140

920

Key words :

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Mr. Tom Liu

Email: tom@zxspecialsteel.com
Tel: 86-714-6556161
Fax: 86-714-6556161
Mobile:86-15972351113 (WhatsApp,Wechat)  Skype:zhiyongliu1022

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  • Machining Sevice:
  • Grinding,Turning,Milling,Peeling and other machining sevice is available.
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  • Heat Treatment Sevice:
  • Steel Annealing,Normalizing,Hardening,Quenching + Tempering and other heat treatment sevice is available.
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