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ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar

China ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar, Find details about China 5140, 41cr4 from ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar

Model NO.
ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 steel
Special Use
Mold Steel, Free Cutting Steel, Engineering Steel
Shape
Round/Flat/Block/Square/Tube
Length
3-5.8m, or as Per Request
Certificate
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Process
Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
Delivery Condition
Hot Rolled/Forged/Cold Drawn
Heat Treatment
Annealed/Normalized/Q+T
Quality Inspection
Ut, Chemical Composition, Physical Properties/SGS
Ut Standard
Sep 1921-84 D/D
Grain Size
ASTM E112
Non-Metallic Inclusion
ASTM E45
Technical Data
Ensile Strength, Yield Strength, Elongation
Stock
Available in Stock
Delivery Time
30-45 Days
Usage
Automotive, Aerospace, Power Generation, Oil & Gas
Experience
15 Years Manufacturer Experience
Trademark
QILU
Transport Package
20" or 40" Container
Specification
Dia 6-1200
Origin
China
HS Code
72284000
Model NO.
ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 steel
Special Use
Mold Steel, Free Cutting Steel, Engineering Steel
Shape
Round/Flat/Block/Square/Tube
Length
3-5.8m, or as Per Request
Certificate
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Process
Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
Delivery Condition
Hot Rolled/Forged/Cold Drawn
Heat Treatment
Annealed/Normalized/Q+T
Quality Inspection
Ut, Chemical Composition, Physical Properties/SGS
Ut Standard
Sep 1921-84 D/D
Grain Size
ASTM E112
Non-Metallic Inclusion
ASTM E45
Technical Data
Ensile Strength, Yield Strength, Elongation
Stock
Available in Stock
Delivery Time
30-45 Days
Usage
Automotive, Aerospace, Power Generation, Oil & Gas
Experience
15 Years Manufacturer Experience
Trademark
QILU
Transport Package
20" or 40" Container
Specification
Dia 6-1200
Origin
China
HS Code
72284000
AISI 5140 40Cr SCr440 41Cr4/1.7035 Rolled Forged Alloy Steel Round Bar
 

AISI 5140 Alloy steel manufacturers and suppliers, supplied in round rods, square/flat bars, rollers, shafts, blocks and forging pieces.

AISI 5140 alloy steel is a structural alloyed carbon steel according to AISI/ASTM standard which is widely used in Low and moderately stressed parts for vehicles, engines and machines where hard, wear resisting surface is needed. The hardness as surface hardened is about 54 HRC.

Chemical Composition
 CarbonManganeseSiliconChromiumMolybdenumPhosphorousSulphur
Min0.380.70.150.7   
Max0.430.90.350.90.060.0350.04
Mechanical Property( for guidance only)
Tensile strengthYield strengthElongationReduction of area
980Mpa745MPa1145
Related Specification
DIN: 41Cr4
W-Nr: 1.7035
JIS/KS: SCr440
Heat Treatment
Hardening&Tempering 
Hardening is used to meet specific mechanical properties which can make the material fit for use.
Tempering is used to remove the stresses and brittleness caused by quenching, develop the required mechanical properties,and improve dimensional stability and toughness.
Annealing
Annealing is a process used to soften the material,enhance the machinability and toughness,increase the ductility and improve the homogeneity in material.
Normalizing
Normalizing is used to make material softer , refine the grain size and improve the uniformity of microstructure and properties.
Delivery Condition
Shape:Round / Square / Flat Bars, Shafts, Rollers, Blocks.
Forged round bar 
Diameter: 80-1,200mm
Length: 3,000-10,000mm(can be customized)
Rolled round bar 
Diameter: 10-300mm
Length: 3,000-10,000mm(can be customized)
Forged square bar
Size: 150×150-600×600mm
Length: 3,000-8,000mm
Surface condition: Black/Peeled/Smooth Turned
Tolerance:As per customer requirement
Straightness:Max 3mm/m(Enhanced straightness may be available on request)
Structure & NDE
Grain size : ASTM 5 or finer
Forging ratio :minimum 3:1
Ultrasonic test: 100% ultrasonically tested As per SEP1921 Class C/c , D/d or ASTM A388
Quality Certification
A material test report will be provided, documenting the following:
1.Chemical analysis
2.Mechanical properties
3.Surface hardness
4.Grain size
5.Forging ratio
6.NDE test method/criteria
Application
Automotive, Aerospace, Power Generation, Oil & Gas, Coal, Energy, Transportation and Shipbuilding Industries


ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar

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.


ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar


ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar

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.

ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar



ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar

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.


ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar



ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar



ASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round BarASTM 5140 SCR440 41cr4/1.7035 40cr Gr. 8.8 Hot Rolled Forged Steel Round Bar
 
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 
 
 
 

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