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 | 
		
		
			| 
				15CrMo | 
			
				15XM | 
			
				A-387Cr . B | 
			
				1653 | 
			
				STC42 | 
			
				12CD4 | 
			
				16CrMo44 | 
		
	
	ULTRASONIC STANDARD:
	GB/T6402-2008 / SEP921-84.  ASTM A388
	CHEMICAL COMPOSITION:
	
		
			| 
				C | 
			
				Si | 
			
				Mn | 
			
				P≤ | 
			
				S≤ | 
			
				Cr | 
			
				Mo | 
		
		
			| 
				0.12/0.18 | 
			
				0.17/0.37 | 
			
				0.40/0.70 | 
			
				0.035 | 
			
				0.035 | 
			
				0.80/1.10 | 
			
				0.40/0.55 | 
		
	
HEAT TREATMENT SPECIFICATION & MECHANICAL PROPERTIES:
	
		
			| 
				Grade  | 
			
				Tensile strength MPa | 
			
				Yeild strength MPa | 
			
				elongation(%) | 
		
		
			| 
				15CrMo | 
			
				440~640 | 
			
				235 | 
			
				21 | 
		
	
	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:
15CrMo is pearlitic structure heat resistant steel .in high temperature have higher hot strength and oxidation resistance.
Used in petroleum ,petrifaction , high pressure boiler. Specialized purpose of seamless tube .
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 industry standards,or
based on agreements with customers.