BS BO 2 / BO 1
PREMIUM 1.2842 / 1.2510
AISI / SAE O2 / O1

SPECIFICATIONS:

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Technical datasheet (PDF) Technical datasheet
PFS PFS
-flat-
500 mm 1,000 mm
           
Steel Guide Information in the STEEL GUIDE
Alternatives in the STEEL GUIDE
PFS/BA PFS / BA
-flat-
500 mm 1,000 mm
           
    Hart-Präz
-flat-
250 mm 500 mm
           
    PRS PRS
-round-
  1,000 mm
           
    PRS/BA PRS / BA
-round-
500 mm 1,000 mm
   
Standard values to PREMIUM 1.2842 / 1.2510 Standard values (BS BO 2)
Chemical designation: 90MnCrV8/100MnCrW4
Working hardness: 57-62 HRC
hardness (deliv. cond.): max. 229 HB

Chemical composition

CSiMnPSCrV
0.85
-
0.95
0.1
-
0.4
1.8
-
2.2
0
-
0.03
0
-
0.03
0.2
-
0.5
0.05
-
0.2
   
Technical properties Technical properties
Alloyed oil hardener with focus on cold work; can be used for a wide range of applications: full hardenability, high degree of dimensional stability, good cutting power and good toughness. Its technical properties and its applications are similar to those of BS BO 1.
   
Applications Applications
The Tool Steel BS BO 2 / BO 1 is suitable for the following applications: Blanking tools and stamping tools (up to 6 mm thickness), shear knives, threading tools, thread dies, reamers, chasers, measuring tools, plastic moulds, rubber moulds, calibres, guide rails, dies, punches, woodworking tools, machine knives.
   

The Tool Steel BS BO 2 / BO 1 is available as Precision flat steel with or without machining allowance, as Hart-Präz® and as Precision round steel with or without machining allowance.

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