PRODUCT NAME :
carbon tool steel
STANDARD:
GB/T1298-1986 ISO4957
GRADE COMPARISION:

GB	ASTM	BS	JIS	DIN
T10	T72301	1407	SK3	C105W1

ULTRASONIC STANDARD:
GB/T6402-2008 / SEP921-84.  ASTM A388

CHEMICAL COMPOSITION:

C	Si	Mn	P≤	S≤
0.95/1.04	≤0.35	≤0.40	0.035	0.03

HEAT TREATMENT SPECIFICATION:
Temperature for specimen quenching ℃: 760～780
Cooling medium for specimen quenching : water
Specimen quenching hardness ＞HRC: 62
MECHANICAL PROPERTIES:
Hardness HBS: ≤197
Impression diameter mm: ≥4.3
DELIVERY CONDITION :
annealed
DIMENSION : mm

ROUND STEEL BAR		COIL ROD	WIRE	SQUARE/ FLAT
FORGED BAR	ROLLED BAR	HOT ROLLED	COLD DRAW	FORGED	ROLLED
100-700	16-250	∮5.5-20	∮0.2-13	120-800×120-800	5-38×44-150 10-90×60-305

APPLIED RANGE:

REMARK：
Above listed parameters and sepcification only for reference . Specific parameters according to standard. Requirments beyond
standard will be negotiate by both sides .
Delivery state:annealed, spheroidal annealed, quenched & tempered ,bright bar, cold-drawn, etc.
Listed specifications are only typical grades; products of required specifications can be developed/produced per international,
Chinese or industry standards, or based on agreements with customers.