20crmo Scm420 18crmo4/1.7243 ASTM 4118 Alloy Steel Round Bar

• Customization: Available
• After-sales Service: 24 Hours on Line
• Warranty: Three Years
• Model NO.: 4118
• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Black Surface
• Alloy: Alloy
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel
• Payment Term: 30% Tt Deposit, Balance Against Bl Copy
• Length: 3000-5800mm
• Delivery Date: 30 Days
• Ex-Stock: No
• Ut Standard: Sep 1921-84 D/D
• Grain Size: ASTM E112
• Non-Metallic Inclusiton: ASTM E45
• Form: Round Bars/ Flat Bar / Blocks/ Tube
• Process: Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
• Technology: Hot Rolled/ Forged/ Cold Drawn
• Heat Treatment: Normalized;Annealed ;Quenched ;Tempered
• Surface: Black; Peeled; Polished; Machined; Grinded; Turne
• Test: Ensile Strength, Yield Strength, Elongation
• Certificate: ISO/ Mill Certificate
• Transport Package: Seaworthy Package
• Specification: DIA 90-600
• Trademark: Qilu
• Origin: China
• HS Code: 7228400000
• Production Capacity: 400, 000ton/Year

Product Description

Product Description

20CrMo SCM420 18CrMo4/1.7243 ASTM 4118 Alloy Steel Round Bar

1: 4118 Steel Introduction
    4118 Steel one steel grade in ASTM A29 standard. ASTM 4118 steel is one of popular alloy steel used for engineering purpose, like fasteners, high pressure pipe and more advanced carburized parts, such as gear, shaft, etc. which work in the noncorrosive medium and temperature below 250 oC, working with nitrogen hydrogen mixture in the medium.
 
2: 4118 Steel Equivalent

Country	British	USA	Japan
Standard	DIN/EN10084	ASTM A29	JIS G4105
Grade	18CrMo4/1.7243	4118	SCM420

 
3: 4118 Steel Chemical Composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni
4118	0.18-0.23	0.15-0.35	0.7-0.9	0.035	0.035	0.4-0.6	0.08-0.15	/
18CrMo4	0.15-0.21	0.4	0.6-0.9	0.025	0.035	0.9-1.2	0.15-0.25	/
SCM420	0.18-0.23	0.15-0.35	0.6-0.85	0.03	0.03	0.9-1.2	0.15-0.30	/

 
4: 4118 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: 4118 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	4118 are used for  gear components of all kind and cog wheels. Open die steel forgings for general engineering purposes.

 

6: Heat Treatment
Normalizing
  Normalizing temperature: 860-900oC.
Hardening
  Harden AISI 4118 steel from a temperature of 850-880oC followed by oil or water quenching. Hardness after quenching is 39-47 HRC.
Tempering
  Tempering temperature: 595-700oC.

 

7: 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.
For hot forged plate, usually the delivery condition is hot forged, annealed/QT, milled surface

For hot rolled plate, 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.




Q1:Are you trading company or manufacturer ?
We are professional manufacturer for many years. we can provide a wide range of steel products.
Q2:What is alloy steel round bar export packing?
Usually bundling for large diameter,small diameter bars in bulk or as customer's demand.
Q3.What is your MOQ?
We accept small order,if it is stock,any quantities can be accepted.
Q4.What is your lead time?
Depends actual order,around 20-35 days,or negotiation.
Q5.Can you supply sample?
Yes,we can.Sample fee according to your size.
 Q6:What certificates do you have?
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Q7: How can I get your quotation as soon as possible?
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,we will work out a best price soon.


Any interests in our company and products, please feel free to contact us for quotation. We warmly welcome you to our factory.


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