High Tensile Strength Structural Scm445 Carbon Alloy Steel Bar with Construction

• After-sales Service: Yes
• Warranty: Three Years
• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Forged
• Application: Structural Steel Bar, Tool Steel Bar
• Model NO.: SCM445
• Surface Treatment: Polished
• Alloy: Non-alloy
• Special Use: Engineering Steel
• Heat Treatment: Annealed, Qt
• Payment Term: 30% Tt Deposit, Balance Against Bl Copy
• Length: 3000-5800mm
• Ex-Stock: No
• Delivery Date: 30 Days
• Ut Standard: Sep 1921-84 D/D
• Grain Size: ASTM E112
• Non-Metallic Inclusiton: ASTM E45
• Transport Package: Seaworthy Package
• Specification: Dia 6-1200
• Trademark: Qilu
• Origin: China
• HS Code: 722840
• Production Capacity: 500, 000tons/Year

Product Description

High Tensile Strength Structural SCM445 Carbon Alloy Steel Bar with Construction

1: 4145 steel introduction
 4145 is a direct hardening chromium-molybdenum low alloy steel that may be readily forged, machined and welded. It may be heat treated to a wide range of strength and ductility levels.

 

2: 4145 Steel equivalent

Country	Japan	USA
Standard	JIS G4105	ASTM A29
Grade	SCM445	4145

 

3: 4145 steel chemical composition

Grade	C	Si	Mn≤	P≤	S≤	Cr	Mo
4145	0.43-0.49	0.10-0.35	0.65-1.10	0.035	0.040	0.80-1.10	0.15-0.25
SCM445	0.43-0.48	0.15-0.35	0.60-0.85	0.03	0.03	0.90-1.20	0.15-0.30

 

4: 4145 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: 4145 steel overviews

Size	Round	Dia 6-1200mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
Process	EAF+LF+VD+Forged+Heat treatment(optional)
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	This alloy is used in the oil and gas industry as forged down-hole drilling tools such as drill collars. Other applications are forged gears, shafts for hydraulic presses, rolls for paper mills, pump shafts and tool holders.

 

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.
For Cold Drawn bar, usually the delivery condtion is cold drawn, annealed/QT, peeled/black surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, milled/black surface
For hot forged plate, usually the delivery condition is hot forged, normalized/annealed, milled/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