BT42 Stockist, BT42 Equivalent Steel
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BT42
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Material Technical Standard of BS 4659 - 1989 High Speed tool steel BS BT42 datasheet,BS BT42 Chemical compositions, BT42 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 - BS 4659-1989. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
TECHNICAL DATA SHEET - BS BT42

MATERIAL CATEGORY: Tungsten series High speed tool steel
MATERIAL SPECIFICATIONS: BS 4659-1989
CHEMICAL COMPOSITIONS (WEIGHT - %)
C (%):     1.25 ~ 1.40
Si (%):     ≤ 0.40
Mn (%):   ≤ 0.40
P (%)≤:   0.030

S (%)≤:   0.030
Cr (%):    3.75 ~ 4.50
Mo (%):   2.75 ~ 3.50
W (%):    8.50 ~ 9.50
V (%):     2.75 ~ 3.25
Co (%):   9.00 ~ 10.0 
HEAT TREATMENT PRACTICE AND HARDNESS
Annealing temperature /℃: 850 ~ 870
Annealed hardness, ≤ HB: 277
Quenching temperature /℃: 1220 ~ 1240
Cooling medium: Oil or Air
Tempering temperature /℃: 550 ~ 570
Hardness under tempered condition HV: 912 min.
MELTING PROCESS
This
alloy is generally smelt in Non-vacuum furnace + ESR, Electric Arc Furnace (EAF).
For a purpose of superior quality, it should be smelt via technology of Electroslag remelting or vacuum refining or by agreement.

PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 0.30 to 450mm
Square bar / Flat bar: THK 3 to 500mm X Width 3 ~ 1200mm
Wire rod (Diameter): 0.30 to 16mm
Steel strip: THK0.15 ~ 2.50 X W8.0 ~ 600mm
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 our resident team of qualified production engineers.
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lh.steel@hotmail.com

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