AISI 4340 36CrNiMo4 1.6511 En24 Sncm439 Alloy Steel Bar

• Standard: DIN, JIS, AISI, ASTM, GB, BS
• Technics: Forged
• Application: Tool Steel Bar
• Surface: Polished
• Alloy: Alloy
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Model NO.: AISI 4340 36CrNiMo4 1.6511 En24 Sncm439 Steel Bar
• Heat Treatment: Annealed
• Length: 3000-5800mm
• Non-Metallic Inclusiton: ASTM E45
• Grain Size: ASTM E112
• Process: Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
• Technology: Hot Rolled/ Forged/ Cold Drawn
• Usage: Automotive, Aerospace, Power Generation, Oil & Gas
• Ex-Stock: Yes
• Service: 24 Hours on Line
• Other Type: Engineering Steel, Cold Work Tool Steel
• Test: Ensile Strength, Yield Strength, Elongation
• Other Type 1: Engineering Steel, Cold Work Tool Steel
• Other Type 2: Hot Work Tool Steel, Plastic Mold Steel
• Other Type 3: Spring Steel, High Speed Steel, Stainless Steel
• Other Type 4: Mold Steel, Free Cutting Steel, Cold Heading Steel
• Transport Package: Seaworthy Package
• Specification: DIA 60-600
• Trademark: zayi
• Origin: China
• HS Code: 72284000
• Production Capacity: 48000tons/Month

Product Description

Product Description

 

AISI 4340 36CrNiMo4 1.6511 En24 Sncm439 alloy Steel Bar

1: 4340 steel introduction
AISI 4340 steel is a medium carbon, low alloy steel known for its toughness and strength in relatively large sections. AISI 4340 is also one kind of nickel chromium molybdenum steels. 4340 alloy steel is generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa. Pre hardened and tempered 4340 steels can be further surface hardened by flame or induction hardening and by nitriding. The 4340 steel has good shock and impact resistance as well as wear and abrasion resistance in the hardened condition. AISI 4340 steel properties offer good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible with our 4340 alloy steel. ASTM 4340 material is often utilized where other alloy steels do not have the hardenability to give the strength required. For highly stressed parts it is excellent choice. AISI 4340 alloy steel can also be machined by all customary methods 
2: 4340 Steel equivalent

Country	USA	Germany	Britain	Japan
Standard	ASTM A29	EN 10250	BS 970	JIS G4103
Grades	4340	36CrNiMo4/ 1.6511	EN24/817M40	SNCM 439/SNCM8

 
3: 4340 steel chemical composition

Standard	Grade	C	Mn	P	S	Si	Ni	Cr	Mo
ASTM A29	4340	0.38-0.43	0.60-0.80	0.035	0.040	0.15-0.35	1.65-2.00	0.70-0.90	0.20-0.30
EN 10250	36CrNiMo4/ 1.6511	0.32-0.40	0.50-0.80	0.035	0.035	<=0.40	0.90-1.20	0.90-1.2	0.15-0.30
BS 970	EN24/817M40	0.36-0.44	0.45-0.70	0.035	0.040	0.1-0.40	1.3-1.7	1.00-1.40	0.20-0.35
JIS G4103	SNCM 439/SNCM8	0.36-0.43	0.60-0.90	0.030	0.030	0.15-0.35	1.60-2.00	0.60-1.00	0.15-0.30

 
4: 4340 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: steel overviews

Size	Round	Dia 6-1200mm
	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; CNF
Delivery time	20-25 days
Application	D2 used for Blanking Dies, Forming Dies, Coining Dies, Slitting Cutters, Heading Tools, Long Punches, Forming Rolls, Edging Rolls, Master Tools, Beading Rolls, Intricate Punches, Extrusion Dies, Drawing Dies, Lamination Dies, Thread Rolling Dies, Shear Blades, Burnishing Tools, Gauges, Knurls, Wear Parts.

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




Shandong Zayi has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.



We were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels,  including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Shandong Zayi also has their own heating treatment shop and machining shop to provide heating and cutting service.

Since 2008 year, Shandong Zayi has the right to export all FORGED STEEL .The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.

Shandong Zayi is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.







The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.

FAQ

Q: Are you trading company or manufacturer ?
A: We are professional manufacturer for plate, and our company also is a very professional a trade company for steel products.we can also provide a wide range of steel products.

Q: Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.

Q: Do you provide samples ? is it free or extra ?
A: The sample could can provide for customer with free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?
A: Yes absolutely we accept.

Q: How could you guarantee your products?
A: Each piece of products is manufactured by certified workshops, inspected by worker piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Q: How can I get your quotation as soon as possible?
A: The email and fax will be checked within 24 hours,meanwhile,the Skype,Wechat and WhatsApp will be online in 24 hours.Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will work out a best price soon.