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AISI 4140 Scm440 42CrMo4 1.7225 En19 709m40 Qt Hot Forged Alloy Round Bar Steel

Price $800.00
Min Order 5 Tons
Availability In Stock
Shipping From Hunan, China
Popularity 539 people viewed
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Model NO.:
4140/SCM440
After-sales Service:
24 Hours on Line
Warranty:
Three Years
Type:
Alloy Steel Bar
Standard:
AISI, ASTM, GB, JIS, DIN, BS
Technique:
Forged
Application:
Structural Steel Bar, Tool Steel Bar
Surface Treatment:
Polished
Alloy:
Alloy
Special Use:
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
Trademark:
Qilu
Transport Package:
Seaworthy Package
Specification:
DIA 90-600
Origin:
China
HS Code:
7228400000
Product Description
Product Description

AISI 4140 Scm440 42CrMo4 1.7225 En19 709m40 QT Hot Forged Alloy Round Bar Steel

1: AISI 4140 steel introduction
AISI 4140 is defined as a low alloy steel which has 1% Cr-Mo as strengthening alloy elements.Compared with AISI 4130, it has a higher carbon content with good balance of strength, toughness ,abrasion and impact resistance and heat treatment capabilities,but poor in weldability characteristics.AISI 4140 is generally supplied in quenched and tempered condition with hardness 28-32HRC
 
2: AISI 4140 Steel equivalent
CountryChinaJapanGermanyUSABritish
StandardGB/T 3077JIS G4105DIN (W-Nr.)
EN 10250		AISI/ASTM
ASTM A29		BS 970
Grade42CrMoSCM44042crmo4/1.72254140EN19/709M40
 
3: AISI 4140 steel chemical composition
GradeCSiMnPSCrMoNi
42CrMo 0.38-0.450.17-0.370.5-0.80≤0.035≤0.0350.9-1.20.15-0.25- 
SCM440 0.38-0.430.15-0.350.6-0.85≤0.035≤0.040.9-1.20.15-0.30 -  
42crmo4/1.7225 0.38-0.45≤ 0.4 0.6-0.9≤0.025≤0.0350.9-1.20.15-0.30 -  
4140 0.38-0.430.15-0.350.75-1.00≤0.035≤0.040.8-1.10.15-0.25 -  
EN19/709M400.35-0.450.15-0.350.5-0.80≤0.035≤0.0350.9-1.50.2-0.40-  
 
4: AISI 4140 steel mechanical properties(for guidance only)
GradeTensile strength
σb(MPa)		Yield strength
σs (MPa)		Elongation
δ5 (%)		Reduction
ψ (%)		Impact Value
Akv (J)		Hardness
4140 ≥1080≥930≥12≥45≥63  28-32HRC 
 
5: AISI 4140 steel overviews
SizeRoundDia 6-1200mm
Plate/Flat/BlockThickness
6mm-500mm
Width
20mm-1000mm
Heat treatmentNormalized ; Annealed ; Quenched ; Tempered
Surface conditionBlack; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery conditionForged; Hot rolled; Cold drawn
TestTensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. 
Payment termsT/T;L/C;/Money gram/ Paypal
Trade termsFOB; CIF; C&F; etc..
Delivery time30-45 days
ApplicationAISI 4140 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.
Typical applications for 4140 steel uses include:forged gears,spindles,fixtures,jigs,collars,Axles,conveyor parts,crow bars,logging parts,shafts,sprockets,studs,pinions,pump shafts, rams, and ring gears etc
6: Delivery condition
   For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
   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.


 
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 
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