• 42CrMo Forged Quenched and Tempered Machined Alloy Round Bars
  • 42CrMo Forged Quenched and Tempered Machined Alloy Round Bars
  • 42CrMo Forged Quenched and Tempered Machined Alloy Round Bars
  • 42CrMo Forged Quenched and Tempered Machined Alloy Round Bars
  • 42CrMo Forged Quenched and Tempered Machined Alloy Round Bars
  • 42CrMo Forged Quenched and Tempered Machined Alloy Round Bars

42CrMo Forged Quenched and Tempered Machined Alloy Round Bars

Type: Alloy Steel Bar
Standard: AISI, ASTM, GB, JIS, DIN, BS
Technique: Forged
Application: Structural Steel Bar, Engineering Mechanical Steel Bar
Surface Treatment: Black Surface/Turned/Rough Machined/Peeled
Alloy: Alloy
Samples:
US$ 1/Piece 1 Piece(Min.Order)
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Basic Info.

Model NO.
42CrMo4
Special Use
Mold Steel, Free Cutting Steel, Cold Heading Steel, Machining Steel
Length
3-5.8m, or as Per Request
Stock
Available in Stock
Certificate
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Quality Inspection
Ut, Chemical Composition, Physical Properties/SGS
Heat Treatment
Annealed/Normalized/Q+T
Smelting Workmanship
Eaf + Lf + Vd
Delivery Condition
Forged/Hot Rolled/Cold Drawn
Shape
Round/Flat/Block/Square
Grain Size
ASTM E112
Non-Metallic Inclusiton
ASTM E45
Ut Standard
Sep 1921-84 D/D
Delivery Time
30-45 Days
Transport Package
Standard Seaworthy Packing
Specification
Dia 16-1200
Trademark
Qilu
Origin
China
HS Code
722830
Production Capacity
500, 000ton/Year

Product Description

Alloy Steel Round Bar for Engineering 4140

42CrMo Forged Quenched and Tempered Machined Alloy Round Bars

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
Country China Japan Germany USA British
Standard GB/T 3077 JIS G4105 DIN (W-Nr.)
EN 10250
AISI/ASTM
ASTM A29
BS 970
Grade 42CrMo SCM440 42crmo4/1.7225 4140 EN19/709M40
 
3: AISI 4140 steel chemical composition
Grade C Si Mn P S Cr Mo Ni
42CrMo  0.38-0.45 0.17-0.37 0.5-0.80 ≤0.035 ≤0.035 0.9-1.2 0.15-0.25 - 
SCM440  0.38-0.43 0.15-0.35 0.6-0.85 ≤0.035 ≤0.04 0.9-1.2 0.15-0.30  -  
42crmo4/1.7225  0.38-0.45 ≤ 0.4  0.6-0.9 ≤0.025 ≤0.035 0.9-1.2 0.15-0.30  -  
4140  0.38-0.43 0.15-0.35 0.75-1.00 ≤0.035 ≤0.04 0.8-1.1 0.15-0.25  -  
EN19/709M40 0.35-0.45 0.15-0.35 0.5-0.80 ≤0.035 ≤0.035 0.9-1.5 0.2-0.40 -  
 
4: AISI 4140 steel mechanical properties(for guidance only)
Grade Tensile 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
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 AISI 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.



42CrMo Forged Quenched and Tempered Machined Alloy Round Bars

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.


42CrMo Forged Quenched and Tempered Machined Alloy Round Bars


42CrMo Forged Quenched and Tempered Machined Alloy Round Bars

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.

42CrMo Forged Quenched and Tempered Machined Alloy Round Bars



42CrMo Forged Quenched and Tempered Machined Alloy Round Bars

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.



42CrMo Forged Quenched and Tempered Machined Alloy Round Bars



42CrMo Forged Quenched and Tempered Machined Alloy Round Bars



42CrMo Forged Quenched and Tempered Machined Alloy Round Bars 42CrMo Forged Quenched and Tempered Machined Alloy Round Bars
 
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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Diamond Member Since 2009

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Manufacturer/Factory
Registered Capital
2000000 RMB
Plant Area
1001~2000 square meters