STC 6 Stockist, STC 6 Equivalent Steel
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STC 6
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Technical Specification of KS D3751 - 1999 Carbon tool steel STC 6 data sheet,KS STC 6 Chemical compositions, STC 6 Mechanical properties from Steelmaking,ESR melted, Hot blooming,STC 6 Hot forging, Hot rolling, STC 6 Heat treatment, Straightening, 100% Ultrasonic flaw test, Cold working, Peeled or rough turned machining. Technical specification KS D3751 - 1999. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
TECHNICAL DATA SHEET - KS STC 6

MATERIAL CATEGORY: Carbon tool steel
MATERIAL SPECIFICATIONS: KS D3751 - 1999
CHEMICAL COMPOSITIONS (WEIGHT - %)
C (%):     0.70 ~ 0.80
Si (%):     ≤ 0.35
Mn (%):   ≤ 0.50
P (%)≤:   0.030

S (%)≤:   0.030
Cr (%):    ≤ 0.30
Ni (%):    ≤ 0.25
Cu (%):   ≤ 0.25 
HOT WORKING AND HEAT TREATMENT PRACTICE
Annealing temperature /℃: 730 ~ 760
Annealed hardness, ≤ HB: 201
Quenching temperature /℃: 760 ~ 820
Cooling medium: water
Tempering temperature /℃: 150 ~ 200
Hardness under tempered condition HRC: 57 
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 manufacturing technology by agreement.

PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 5.50 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.

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