PRODUCT NAME :
	alloy structure steel
	STANDARD:
	GB/T3077-1999 EN10083-1 EN10083-3   ISO 683-1
	GRADE COMPARISION:
	
		
			| 
				GB | 
			
				ГОСТ | 
			
				ASTM | 
			
				BS | 
			
				JIS | 
			
				NF | 
			
				DIN | 
		
		
			| 
				35Mn2 | 
			
				35Г2 | 
			
				1335 | 
			
				150M36 | 
			
				SMn438(H) | 
			
				35M5 | 
			
				36Mn5 | 
		
	
	ULTRASONIC STANDARD:
	GB/T6402-2008 / SEP921-84.  ASTM A388
	CHEMICAL COMPOSITION:
	
		
			| 
				C | 
			
				Si | 
			
				Mn | 
			
				P | 
			
				S | 
		
		
			| 
				0.32-0.39 | 
			
				0.17-0.37 | 
			
				1.40-1.80 | 
			
				≤0.035 | 
			
				≤0.035 | 
		
	
 HEAT TREATMENT SPECIFICATION & MECHANICAL PROPERTIES:
Quenching temperature (℃):840;
Yeild strength (σs/MPa):≥685tem
Elongation (δ5/%):≥12
Reduction area (ψ/%):≥45
Impact (Aku2/J):≥55
DELIVERY CONDITION :
normalized ,annealed, black surface ,rough machined or quenched & tempered , should be indicated in contract .
DIMENSION : mm
	
		
			| 
				ROUND STEEL BAR  | 
			
				COIL ROD | 
			
				WIRE | 
			
				SQUARE/ FLAT | 
		
		
			| 
				FORGED BAR | 
			
				ROLLED BAR | 
			
				HOT ROLLED  | 
			
				COLD DRAW | 
			
				FORGED  | 
			
				ROLLED  | 
		
		
			| 
				80-650 | 
			
				16-250 | 
			
				∮5.5-20 | 
			
				∮0.2-13 | 
			
				120-800×120-800 | 
			
				5-38×44-150 10-90×60-305 | 
		
	
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:
Ordinary used in quenched and normalized status . In heavy duty ,and middle sized machinery used as connecting rod , mandreal , axle shaft .
REMARK:
Above listed parameters and sepcification only for reference . Specific parameters according to standard. Requirments beyond standard will
be negotiated 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 as per international, Chinese or i
ndustry standards,orbased on agreements with customers.