SAE T8 / T12008 datasheet,SAE T8 / T12008 chemical,SAE T8 / T12008 heat treatment
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SAE T8 / T12008
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Material Technical Standards ASTM A600-2004 high speed tool steel SAE T8 datasheet,UNS T12008 Chemical compositions, SAE T8 & T12008 Mechanical properties from Steelmaking, ESR melted, Hot blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw test, Cold working, Peeled or rough turned machining. Technical specification - ASTM A600 - 2004. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
TECHNICAL DATA SHEET:  SAE T8 & T12008

MATERIAL CATEGORY: Tungsten series High speed tool steel
MATERIAL SPECIFICATIONS: ASTM A600 - 2004
CHEMICAL COMPOSITIONS (WEIGHT - %)
C (%):     0.75 ~ 0.85
Si (%):     0.20 ~ 0.40
Mn (%):   0.20 ~ 0.40
P (%)≤:   0.030
S (%)≤:   0.030
Cr (%):    3.75 ~ 4.50
Mo (%):   0.40 ~ 1.00
W (%):    13.25 ~ 14.75
V (%):     1.80 ~ 2.40
Co (%):   4.25 ~ 5.75
HEAT TREATMENT PRACTICE AND HARDNESS
Annealing temperature /℃: 870 ~ 900
Annealed hardness, ≤ HB: 228 ~ 255
Quenching temperature /℃: 1260 ~ 1300
Cooling medium: oil, air
Tempering temperature /℃: 540 ~ 600
Hardness under tempered condition ≥HRC: 65 ~ 60
MELTING PROCESS
This
alloy is generally smelt in Non-vacuum furnace + ESR, Electric Arc Furnace  (EAF), EAF+LF+VD, LF + ESR.
For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.

PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 0.50 to 450mm
Square bar / Flat bar: T3 to 500mm X W3 ~ 1200mm
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.
Other different shapes based on OEM.

TECHNICAL SALES ASSISTANCE & SERVICE
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