45crmo4 8620 4340 Alloy Steel Sheet Plate

• Customization: Available
• Type: Steel Plate
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: 45crmo4 8620 4340
• Composition: Forging Steel
• Technique: Forged
• Shape: Plate
• Surface Treatment: Black Surface/Turned/Rough Machined/Peeled
• Special Use: Structural Steel Bar, Engineering Mechanical Steel
• Application: Structural Steel Bar, Engineering Mechanical Steel
• Certification: RoHS, CE, ISO
• Transport Package: Bulk Package
• Specification: ISO 9001-2000
• Trademark: Qilu
• Origin: China
• HS Code: 722840
• Production Capacity: 500, 000ton/Year

Product Description

45crmo4 8620 4340 Alloy Steel Sheet Plate

1: 8620 steel introduction
AISI 8620 Steel is a low alloy nickel, chromium, molybdenum case hardening steel, generally supplied in the as rolled condition with a maximum hardness HB 255max. SAE steel 8620 offers high external strength and good internal strength, making it highly wear resistant. AISI 8620 steel has a higher core strength than grades 8615 and 8617.SAE 8620 alloy steel is flexible during hardening treatments, thus enabling improvement of case/core properties. Pre hardened and tempered (uncarburized) 8620 can be further surface hardened by nitriding but will not respond satisfactorily to flame or induction hardening due to its low carbon content.

2: 8620 Steel equivalent

Country	Japan	Germany	Britain	USA
Standard	JIS G4103	DIN 1654	BS970	ASTM A29
Grade	SNCM220	21NiCrMo2/1.6523	805M20	8620

 
3: 8620 steel chemical composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni
8620	0.18-0.23	0.15-0.35	0.7-0.9	0.035	0.04	0.4-0.6	0.15-0.25	0.4-0.7
1.6523	0.17-0.23	0.4	0.65-0.95	0.035	0.035	0.4-0.7	0.15-0.25	0.4-0.7
805M20	0.17-0.23	0.1-0.4	0.6-0.9	0.03	0.03	0.35-0.65	0.15-0.3	0.4-0.7
SNCM220	0.17-0.23	0.15-0.35	0.6-0.9	0.03	0.03	0.4-0.65	0.15-0.25	0.4-0.7

 
4: 8620 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: 8620 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; C&F; etc..
Delivery time	30-45 days
Application	8620 alloy steels are used for  Arbors, Bearings, Bushings, Cam Shafts, Differential Pinions, Guide Pins, King Pins, Pistons Pins, Gears, Splined Shafts, Ratchets, Sleeves and other applications where it is helpful to have a steel that can be readily machined and carburized to controlled case depths.

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

Hunan Qilu Industrial Co., Ltd 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.



Hunan Qilu Industrial Co., Ltd 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 Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.

Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.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.

Qilu Industrial 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.




Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com