BS 1.1730: Unalloyed tool steel with excellent machining properties for unhardened parts (e.g. fixture construction), due to its carbon proportion (0.45 %) it can be hardened, but has a low depth of hardening. Shallow depth case-hardening steel with a hard surface and a tough core. Working hardness: approx. 190 HB (annealed) up to 54 HRC (surface hardness).
BS 1.1730: Mechanical engineering, construction materials, jigs, base plates, moulding frames, small dies, hand tools, simple knives, sledges, pliers, forks, hatchets, axes, shears, screwdrivers, chisels.
|C||042||up to||05||Ni||-||up to||-|
|Si||015||up to||04||V||-||up to||-|
|Mn||06||up to||08||W||-||up to||-|
|P||-||up to||003||Cu||-||up to||-|
|S||-||up to||003||N||-||up to||-|
|Cr||-||up to||-||Ti||-||up to||-|
|Mo||-||up to||-||Co||-||up to||-|
Data given should to be taken as a guideline value.
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