
	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.