45X2N4MA / AISI 6F7
2017-03-11 15:16:35 Origin： Remark：0 Click：
Technical specifications of cold work alloy tool steel 45X2N4MA/AISI 6F7 datasheet, 45X2N4MA / AISI 6F7 Chemical compositions, 45X2N4MA/AISI 6F7 Mechanical properties from Steelmaking, 6F7 ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working or rough turned machining. We also possess the advanced precision machining equipments for catering for your different special requirements.
Technical Data Sheet - Grade 45X2N4MA & AISI 6F7
OFFICIAL TEST REPORT: issued by TUV - SGS - BV
MATERIAL CATEGORY: Cold work alloy tool steel
CHEMICAL COMPOSITION (WEIGHT - %)
C (％): 0.40 ~ 0.50
Si (％): 0.10 ~ 0.40
Mn (％): 0.20 ~ 0.50
P (％)≤: 0.030
S (％)≤: 0.030
Mn (％): 0.20 ~ 0.50
P (％)≤: 0.030
S (％)≤: 0.030
Cr (%): 1.20 ~ 1.50
Mo (%): 0.15 ~ 0.35
Ni (%): 3.80 ~ 4.30
HEAT TREATMENT PRACTICE AND HARDNESS
Hot working tenperature ℃ /Starting: 1050
Hot working tenperature ℃ /Starting: 1050
Hot working tenperature ℃ /Ending: 850
Annealing temperature ℃: 610 ~ 650
Hardness after annealing ≤HBW: 260
Quenching temperature ℃: 840 ~ 870
Cooling medium: Air or oil cooled
Annealing temperature ℃: 610 ~ 650
Hardness after annealing ≤HBW: 260
Quenching temperature ℃: 840 ~ 870
Cooling medium: Air or oil cooled
Tempering temperature ℃: 150 ~ 250
Hardness value after tempered /≥ HRC: 46 ~ 56
MELTING PROCESS
This alloy is generally smelt in electric arc furnace ( EAF ) or IFF + VD, LF + Electroslag remelting (ESR).
Hardness value after tempered /≥ HRC: 46 ~ 56
MELTING PROCESS
This alloy is generally smelt in electric arc furnace ( EAF ) or IFF + VD, LF + Electroslag remelting (ESR).
For a purpose of higher quality, it should be smelt via technology of vacuum refining.
HEAT TREATTMENT PRACTICE
The preheating of measuring and cutting tool steel is spheroidizing annealing, final heat treatment is quenching + low temperature tempering and hardness after heat treatment can reach 60~65HRC. When heat treat tool steel grades consideration should be given to hardening temperature, including ratio of heating, cooling and soaking times which will differ due to factors such as the shape and size of each chemical component. Other considerations during heat treatment include the type of furnace, quenching medium and work piece transfer facilities.
The preheating of measuring and cutting tool steel is spheroidizing annealing, final heat treatment is quenching + low temperature tempering and hardness after heat treatment can reach 60~65HRC. When heat treat tool steel grades consideration should be given to hardening temperature, including ratio of heating, cooling and soaking times which will differ due to factors such as the shape and size of each chemical component. Other considerations during heat treatment include the type of furnace, quenching medium and work piece transfer facilities.
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 0.50mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineer. - Email us: lh.steel@hotmail.com
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