AMS 6491
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Descriptions AMS 6491 datasheet, AMS 6491 Chemical, AMS 6491 Properties from Steelmaking, Blooming, Hot forging, Hot rolling, Heat treatment,
TECHNICAL DATA SHEET - AMS 6491
MATERIAL CATEGORY 4.1Cr-4.2Mo-1.0V series High speed tool steel
MATERIAL SPECIFICATIONS - AMS 6491E - 2014
CHEMICAL COMPOSITIONS (mass weight - %)
Carbon, C (％): 0.75 ~ 0.85
Carbon, C (％): 0.75 ~ 0.85
Silicon, Si (％): ≤ 0.25
Manganese, Mn (％): 0.15 ~ 0.35
Phosphorus, P (％) ≤: 0.015
Sulfur, S (％) ≤: 0.005
Manganese, Mn (％): 0.15 ~ 0.35
Phosphorus, P (％) ≤: 0.015
Sulfur, S (％) ≤: 0.005
Chromium, Cr (%): 4.00 ~ 4.50
Molybdenum, Mo (%): 4.00 ~ 4.50
Tungsten, W (%): ≤ 0.25
Vanadium, V (%): 0.90 ~ 1.10
Cobalt, Co (%): ≤ 0.25
HEAT TREATMENT PRACTICE AND HARDNESS
Annealing temperature /℃: 830 ~ 850
Annealed hardness, ≤ HB: 248
Quenching temperature /℃: 1120 ~ 1140
Cooling medium: oil
Tempering temperature /℃: 520 ~ 550
Hardness under tempered condition ≥HRC: 63 ~ 61
Tempering temperature /℃: 520 ~ 550
Hardness under tempered condition ≥HRC: 63 ~ 61
MELTING PROCESS
This alloy is generally smelt in VIM + ESR. For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
PRODUCT PROFILE AND DIMENSIONS
Round bar (Diameter): 5.50 to 450mm
Square bar / Flat bar: T8 to 500mm X W8 ~ 1000mm
This alloy is generally smelt in VIM + ESR. For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
PRODUCT PROFILE AND DIMENSIONS
Round bar (Diameter): 5.50 to 450mm
Square bar / Flat bar: T8 to 500mm X W8 ~ 1000mm
Wire rod (Diameter): 0.30 to 13mm
Steel strip: THK0.15 ~ 2.50 X W8.0 ~ 185mm
Length: Fixed length or random length or based on the customer's special requirement.
Steel strip: THK0.15 ~ 2.50 X W8.0 ~ 185mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
