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O1 1.2510 SKS3

Početna>Proizvodi>Alat za hladni radni čelik>O1 1.2510 SKS3

Cold Working Tool Steel O1 1.2510 SKS3 wire rod

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Specifikacije

Type O1 oil-hardening cold-work steel consists of chromium, manganese, and tungsten and is relatively inexpensive.


Aplikacije:

O1 steels are mainly used for short run tooling for cold forming dies, blanking dies, and cutting tools operating at ambient temperature.


SASTAV

CMnSi
Cr
W
0.94
1.200.30
0.50
0.50


Specifikacije:

Koeficijent toplinske ekspanzije (63-64 HRC)
Temperatura︒Fin/in︒F×10-6Temperatura︒Cmm/mm︒C×10-6
100-5005.9638-260
10.73
100-8007.1438-42712.85
100-10007.8438-53814.11
100-12008.0238-64914.44


Fabrication and Heat Treatment:

Obradivost:

The machinability of O1 steels is very good with a rating of 90% that of water hardening low alloy steels.


Formiranje:

O1 steels can be easily formed in the annealed condition using conventional methods.


Stvrdnjavanje:

O1 steels should be heated uniformly to 780-820°C (1436-1508°F) until completely heated through. 

If needed, the steels can be preheated at 300-500°C (572-932°F). About 30 min/per 25 mm of ruling 

section is to be provided and then the steels should be immediately quenched in oil.


Zavarivanje:

O1 steels are weldable but run the risk of crack formation but this can be avoided with certain specifications.


1. During welding of soft annealed O1 tool steel, the steel should be preheated to 300 - 500°C (572-932°F), 

welded at same temperature and finally the stress should be relieved immediately. 

The Cr-Mo alloy electrode is preferable for welding structural steel.

2. While welding in order to harden soft annealed O1 tool steel, the steel should be heated to hardening temperature, 

cooled to 500°C (932°F) and welded at same temperature. Finally quenching is performed. 

The hard-facing electrode is the preferable choice of electrode.

3. When repair welding of the O1 tool steel in hardened and tempered condition, the steel should be preheated to 

a minimum tempering temperature of 200°C (93°F) and welded at the same tempering temperature.

Finally, it should be heated immediately to a maximum tempering temperature of 300°C (572°F) and soaked for 2 sati. 

The hard-facing electrode is the preferable choice of electrode.


Termičku obradu:

The heat treatment requires O1 steels to be slowly preheated to 649°C (1200°F) and then heated at 788-816°C (1450-1500°F). 

Then these steels should be held at the same temperature for 10 to 30 minutes and finally oil quenched.


Kovanje:

Forging of O1 steels can be performed at 1038°C (1900°F) down to 857°C (1575°F) but not below 816°C (1550°F).


Cold Work:

O1 steels can be easily cold-worked in the annealed condition using conventional methods.


Annealing:

Annealing should be performed at 788°C (1450°F) followed by slow furnace cool at a temperature less than 4°C (40°F) per hour.


Kaljenje:

Tempering of O1 steels is performed at 177-260°C (350-500°F) to realize Rockwell C hardness of 62 to 57.


Martempering:

Martempering is a substitute hardening procedure which can be used along with suitable salt bath equipment.


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