PRODUCT NAME :Carbon steel round bar ( forged ,rolled )
	STANDARD:
	GB/T699-1999 EN10083-2 ISO683-1 EN10250-2
	GRADE COMPARISION:
	
		
			| 
				GB | 
			
				ГОСТ | 
			
				ASTM | 
			
				BS | 
			
				JIS | 
			
				NF | 
			
				DIN | 
		
		
			| 
				45 | 
			
				45 | 
			
				1045 | 
			
				080M46 | 
			
				S45C | 
			
				XC45 | 
			
				C45,CK45 | 
		
	
ULTRASONIC STANDARD:
GB/T6402-2008 / SEP921-84.  ASTM A388
CHEMICAL COMPOSITION:
	
		
			| 
				C | 
			
				Si | 
			
				Mn | 
			
				P≤ | 
			
				S≤ | 
		
		
			| 
				0.42/0.50 | 
			
				0.17/0.37 | 
			
				0.50/0.80 | 
			
				0.035 | 
			
				0.035 | 
		
	
HEAT TREATMENT SPECIFICATION:
Tensile strength >686Mpa
yeild strength >490Mpa
enlongation δ5>17%
reducttion ψ>45%
impact >78J/cm2
hardness 201~269HB
MECHANICAL PROPERTIES:
DELIVERY CONDITION :
normalized ,annealed, black surface ,rough machined or quenched & tempered , should be indicated in contract .
DIMENSION : mm
length : forged bar free length 4-5.8M,rolled bar 5.8M. for customers special requirment, the bar length can do 20 meters long.
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.