AISI/ASTM 4330V 30crnimo16-6/1.6747 Alloy Seamless Steel Pipe

• Customization: Available
• After-sales Service: Lifetime Warranty
• Type: Seamless
• Model NO.: Seamless Pipe
• Technique: Forged/Hot Rolled/Cold Drawn
• Material: Carbon Steel/Alloy Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Certificate: ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
• Quality Inspection: Ut, Chemical Composition, Physical Properties/SGS
• Length: 2.5-12mm or Customized
• Outside Diameter: 4-914mm or Customized
• Heat Treatment: Quenched, Tempered, Annealed
• Surface Require: Black, Grinding, Bright, Polish
• Transport Package: Seaworthy Packing/Wooden Box or at Client′s Requir
• Specification: Customized
• Trademark: OEM & ODM
• Origin: China
• HS Code: 7228400000
• Production Capacity: 1000 Ton/Month

Product Description

Product Description

1. EN30B steel introduction
    EN30B is a 4% nickel air/oil hardening steel. It achieves a good through hardness with high strength and toughness. It is capable of taking a good polish and is widely used as drill bit material

2. EN30B Steel equivalent

Country	Germany	British
Standard	EN10250	BS970
Grade	30NiCrMo16-6/1.6747	EN30B/835M30

 
3. EN30B steel chemical composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni
1.6747	0.26-0.33	0.4	0.5-0.8	0.025	0.025	1.2-1.5	0.3-0.6	3.3-4.3
EN30B	0.28-0.33	0.1-0.35	0.4-0.6	0.025	0.015	1.1-1.24	0.2-0.4	4-4.3

 
4. EN30B steel mechanical properties  

    The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

 

5. EN30B steel overviews

Size	Round	Dia 6-1000mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
Heat treatment	Normalized ; Annealed ; Quenched ; Tempered
Surface condition	Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition	Forged; Hot rolled; Cold drawn
Test	Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms	T/T;L/C;/Money gram/ Paypal
Trade terms	FOB; CIF; C&F; etc..
Delivery time	30-45 days
Application	EN30B alloy steels are used for Down-hole tools, heavy duty construction tools, rock drilling bit bodies, highly stressed gears and transmission components, heavy duty shafts and rolls.

 

6. Heat Treatment 

Forging - Commence 1200ºC (2190ºF) Max.
Double Annealing - Austenitize 850ºC to 865ºC (1560ºF to 1590ºF)Quench and tempered
Machinability: Double Anneal at 635ºC to 650ºC (1175ºF to 1200ºF)Do not exceed 660ºC (1220ºF)
    A Hardness of 269 HB Max is achievable
Normalize, Temper & Stress Relieve - Austenitize 850ºC to 865ºC (1560ºF to 1590ºF).Air cool to room temperature
    Temper 530ºC (990ºF), air cool
    Stress Relieve 500ºC (930ºF), air cool
Hardened & Tempered Austenitize 850ºC to 865ºC (1560ºF to 1590ºF) Forced air cool or oil quench. Temper at 200ºC (400ºF), air cool.

 

7. Delivery condition
    For hot forged rolled bar, usually the delivery condition is hot forged or rolled, annealed/QT, rough turned/Black surface.
    For hot forged or hot rolled bar, usually the delivery condition is hot rolled, annealed/QT, Black surface.
    For hot forged plate, usually the delivery condition is hot forged, annealed/QT, milled surface/Black surface
    For hot rolled plate, usually the delivery condition is hot rolled, annealed/QT, black surface.

Main Products

 

STYLE	MATERIAL	STANDARD	APPLICATION	SIZE
ALLOY STEEL PIPE	12Cr1MoV P22(10CrMo910)  T91,P91,P9,T9,WB36 Cr5Mo(P11,P12,STFA2) 13CrMo44,Cr5Mo,15CrMo,	DIN17175-79 JISG3467-88 JISG3458-88 GB5310-95 GB9948-88 ASTMA335/A335M ASTMA213/A213M	Petroleum, Chemical, Electric power, boiler and other industries of high temperature and low temperature corrosion resistance	16-824*2-100
Oiled Casing tube	J55  N80	API SPEC 5CT	Oil Well Tube, Coupling Pipe	60-630*1.53-40
High Pressure Boiler Tube	20G, A106C,ST45.8/3	GB531095 ASTMA106-99 DIN17175-79	Heat resistant seamless tube for high pressure boiler tube	16-824*2-65
Low and Medium Pressure Boiler Tube	10 #, 20#	GB3087-1999	Low and medium pressure boiler, superheated pipe, boiling water pipe	10-530*2-40
Petroleum cracking tube	20#,12CrMo,15CrMo	GB9948-88	Seamless tubes for furnace tubes, heat exchanger tubes and pipes for petroleum refining plants	10-530*1.5-36
chemical fertilizer equipment	20#,16Mn,Q345	GB6479-2000	chemical fertilizer equipment	25-426*6-40
Hydraulic prop tube	27SiMn	GB/T17396-1998	Hydraulic support	70-377*9-40
Marine Pipe	410	GB/T5312-1999	Special pressure pipe for ship	14-426*1.5-4.5
Line Pipe	B	API	Oil,Gas	60-630*1.53-40
Fluid Pipe	20#,Q345	GB/T8163-1999	Fluid, Water	8-630*1.5-40
Structural Tube	10#,20#,35#,45#,16Mn,Q345B	GB/T8162-1999	General structural use	6-610*1.5-40
Precision Tube	St35,St37.4(10#),St45(20#), St55(35#),Ck45(45#),St52 (16Mn),CH8Ni9Ti,35Cr0	GB/T3639-2000,DIN2391	Used inautomobile, motorcycle, engineering machinery, Jack, electric tools, sports equipment	4-89

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