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AISI L4

2018-04-21 16:18:04
We are a professional manufacturer of AISI L4, we can provide the third party inspection report and datasheet of AISI L4 as round bar, square bar, flat steel and so on. Please send the inquiry to us if you are if you are interested in AISI L4. We will serve you with honesty, integrity, and professional. The detail data as below follow: 
Steel Grade: AISI L4| UNS: —

CHEMICAL COMPOSITION(AISI L4): 
C(%) :        0.90~1.10
Si(%) :        0.10~0.40
Mn(%) :        0.50~0.70
Cr(%) :        1.45~1.55
Mo(%) :        —
V(%) :        0.20~0.30
W(%) :        —
Other(%) :        —
HARDNESS AND HEAT TREATMENT (AISI L4):
Initial Forging Temperature/℃:        980~1090
Finish Forging Temperature/℃:        840
Annealing/℃:        770~800
Hardbess HBS|After Annealing :        179~207
Quenching/℃:        800~870
Quenching Medium :        Oil or Water
Tempering/℃:        150~320
Hardbess HBC|After Tempering :        64~56
Remark(AISI L4): 
①, The temperature is after carburization.
②, It is surface hardness after carburization.
③, Aging treatment.
Please find the PDF for AISI L4  
Introduction Alloy Tool Steel (AISI L4)
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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