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41Cr4 / 5140 / 40Cr Round Forged Steel Bar 1-12 M Length 80 Mm-1200 Mm Diameter

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41Cr4 / 5140 / 40Cr Round Forged Steel Bar 1-12 M Length 80 Mm-1200 Mm Diameter

Country/Region china
City & Province shanghai shanghai
Categories Mining Machinery Parts

Product Details

41Cr4 / 5140/40Cr round bar steel hot forged , forged steel bar, Small MOQ

 

1.Application:

Used to manufacture medium speed and medium load parts after quenched and tempered, such as gear, shaft, worm, spline shaft, centre sleeve, etc.
Used to manufacture high hardness surface and wear resistance parts after high frequency case hardening and tempered, such as gear, main shaft, bent axle, mandrel, sleeve, pin, connecting rod, screw, nut, etc.
Used to manufacture high load and medium speed impact parts after quendced and medium temperature tempered, such as pump rotor, slider block, main shaft, lantern ring, etc.
Used to manufacture high load, low speed impact and wear resistance parts after quenched and low temperature tempered, such as shaft, main shaft, worm, lantern ring, etc.
Used to manufacture big size and high low-temperature impact toughness driving parts after carbonitriding, such as shaft, gear, etc.

 

Material:41Cr4 / 5140/40Cr round bar steel hot forged , forged steel bar, Small MOQ
Diameter:80mm-1200mm
Length:1000mm-12000mm Straightness: 3mm/M max
Process:EAF + LF + VD + Forged + Heat Treatment (optional)
Delivery condition:Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)
Delivery Time:10-45 days
MOQ:2-3 tons
Heat treatment:Normalized / Annealed / Quenched / tempered
Technical Data:According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing
Test:Ultrasonic test according to SEP 1921-84 G3 C/c
Marking:Grade, heat NO. length will be stamped one each bar with required color
Payment:30% advance by TT; Balance pay before the shipment against shipping documents or irrevocable LC at sight
Application:Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2, Chemical Composition

CSiMnPSCr
0.38 - 0.45max 0.40.6 - 0.9max 0.035max 0.0350.9 - 1.2

 

3,Properties:

Nominal diameter (mm):to 1616 - 4040 - 100
Rm - Tensile strength (MPa) (+QT)1000-1200900-1100800-950
Nominal thickness (mm):to 88 - 2020 - 50
Rm - Tensile strength (MPa) (+QT)1000900800


 

Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60;to 1616 - 4040 - 100
Re - Upper yield strength or
Rp0.2 - 0.2% proof strength (MPa) (+QT)
800660560


 

Temperature ° C+20
KV - Impact energy (J) (+QT)30-35
Temperature ° C+20
KV - Impact energy (J) transverse, (+QT)22


 

Nominal thickness (mm):to 1616 - 4040 - 100
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products111214


 

Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60;to 1616 - 4040 - 100
Z - Reduction in cross section on fracture (%) (+QT)303540


 

Brinell hardness (HBW): (+S)255
Brinell hardness (HBW): (+A)241
 
4. Related Steel grades:
USA: AISI 5140,ASTM 5140 ,
JIS: JIS SCr440 JIS(SCr4),
GB: 40Cr
 
Product Description

applicationpackage of round bar

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