Performance Characteristics:
Cold work mould steel, similar to ASTM A2,it is a kind of widely used steel in A. Good wear resistance, minimal distortion, good quench-hardening ability, high pressure strength.
Applications:
Air hardening tool steel which is easier to machine than D2 or D3 but offers high abrasion resistance with good toughness. steel for pressing mold and cutting knife with heavy-loading and complex shape.
Chemical Composition (%):
|
C
|
Si
|
Mn
|
V
|
Ni
|
Cr
|
Cu
|
S
|
P
|
|
0.95~1.05
|
≤0.50
|
≤1.00
|
0.15~0.50
|
≤0.25
|
4.75~5.50
|
≤0.30
|
≤0.030
|
≤0.030
|
Mechanical properties:
Hardness: annealing,less than or equal to 255 HB, creasing diameter is more than or equal to 3.95 mm ; quenching is more than or equal to 60 HRC.
Delivery Condition:
Annealed