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AISI H42

2018-04-18 19:57:28
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Steel Grade: AISI H42| UNS: T20842

CHEMICAL COMPOSITION(AISI H42): 
C(%) :        0.60
Si(%) :        0.20~0.40
Mn(%) :        0.20~0.40
Cr(%) :        4.00
Mo(%) :        5.00
V(%) :        2.00
W(%) :        6.00
Other(%) :        —
HARDNESS AND HEAT TREATMENT (AISI H42):
Initial Forging Temperature/℃:        1040~1120
Finish Forging Temperature/℃:        930
Annealing/℃:        840~900
Hardbess HBS|After Annealing :        207~235
Quenching/℃:        1120~1220
Quenching Medium :        Saline、Oil or Air
Tempering/℃:        570~650
Hardbess HBC|After Tempering :        60~50
Remark(AISI H42): 
①, The temperature is after carburization.
②, It is surface hardness after carburization.
③, Aging treatment.
Please find the PDF for AISI H42  
Introduction Alloy Tool Steel (AISI H42)
Alloy tool steel, carbon tool steel with Si, Mn, Ni, Cr, Mo, V, W and other alloy elements in order to improve the hardenability and toughness, wear resistance and heat resistance of steel.Add Cr and Mn can improve the hardenability of tool steel, according to the requirements, selectively to join or add other elements (adding amount is generally not more than 5%), that is, to form a series of alloy tool steel.It is mainly used in the manufacture of measuring tools and cutters, shock resistant and cold and hot mould and some special purpose tools.


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