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Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Specifications
Brand Name :
takford
Model Number :
4140/42crmo/scm440/1.7225
Place of Origin :
china
MOQ :
1 pieces
Price :
USD 1-2/KG
Payment Terms :
L/C, T/T, Western Union
Supply Ability :
1000 TONS PER MONTH
Delivery Time :
5-8 DAYS
Packaging Details :
Standrad export seaworthy package/ wooden box package
products name :
4140 alloy structure steel round bar for machine shafts
technology :
hot rolled
steel grade :
4140/42crmo/scm440/1.7225
shape :
steel round bar
surface :
bright
application :
machine, industry
Description

Bright Surface 4140 Alloy Structure Steel Round Bar For Machine Shafts

SAE 4140 Steel round bar

1. 4140 alloy steel is a 1% chromium - molybdenum medium hardenability general purpose high tensile steel - generally supplied hardened and tempered in the tensile range of 850 - 1000 Mpa (condition T).4140 is now available with improved machinability, which greatly increases feeds and/or speeds, while also extending tool life without adversley affecting mechanical properties.

Pre hardened and tempered 4140 can be further surface hardened by flame or induction hardening and by nitriding.

4140 is used extensively in most industry sectors for a wide range of applications such as:

Adapters, Arbors, Axle Shafts, Bolts, Crankshafts, Connection Rods, Chuck Bodies, Collets, Conveyor Pins & Rolls, Ejector Pins, Forks, Gears, Guide Rods, Hydraulic Shafts & Parts,Lathe Spindles, Logging Parts, Milling Spindles, Motor Shafts, Nuts, Pinch Bars, Pins Various, Pinions, Pump Shafts, Rams, Sockets, Spindles, Sprockets, Studs, Tool Holders, Torsion Bars, Worms etc..

2. Common 4140 Steel Specifications

Country USA German British Japan China Australia
Standard ASTM A29 DIN 17200 BS 970 JIS G4105 GB/T 3077 AS 1444
Grades 4140 1.7225/
42crmo4		 42CrMo4 SCM440 42CrMo 4140

3. 4140 Steel Bar Chemical Composition

Standard Grade C Mn P S Si Ni Cr Mo
ASTM A29 4140 0.38-0.43 0.75-1.00 0.035 0.040 0.15-0.35 – 0.8-1.10 0.15-0.25
EN 10250 42CrMo4/
1.7225		 0.38-0.45 0.6-0.9 0.035 0.035 0.4 – 0.9-1.2 0.15-0.30
JIS G4105 SCM440 0.38-0.43 0.60-0.85 0.03 0.03 0.15-0.35 – 0.9-1.2 0.15-0.30

4. Mechanical Properties of AISI Alloy 4140 Steel Bar, Plates, Square

Properties Metric Imperial
Tensile strength 655 MPa 95000 psi
Yield strength 415 MPa 60200 psi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 25.70% 25.70%
Hardness, Brinell 197 197
Hardness, Knoop (converted from Brinell hardness) 219 219
Hardness, Rockwell B (converted from Brinell hardness) 92 92
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 13 13
Hardness, Vickers (converted from Brinell hardness) 207 207
Machinability (based on AISI 1212 as 100 machinability) 65 65

5. Forging

Preheat the steel carefully, heat to 1150 oC – 1200 oC maximum, hold until temperature is uniform throughout the section.
Do not forge below 850 oC.Following forging operation the work piece should be cooled as slowly as possible.

Machine Shafts Bright Surface 4140 Alloy Tool SteelMachine Shafts Bright Surface 4140 Alloy Tool SteelMachine Shafts Bright Surface 4140 Alloy Tool SteelMachine Shafts Bright Surface 4140 Alloy Tool SteelMachine Shafts Bright Surface 4140 Alloy Tool SteelMachine Shafts Bright Surface 4140 Alloy Tool Steel

Product tags

machining h13 tool steel

,

machining m2 tool steel

,

lathe tool steel
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Machine Shafts Bright Surface 4140 Alloy Tool Steel

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Product Detail
Brand Name :
takford
Model Number :
4140/42crmo/scm440/1.7225
Place of Origin :
china
MOQ :
1 pieces
Price :
USD 1-2/KG
Payment Terms :
L/C, T/T, Western Union
Contact Supplier
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel
Machine Shafts Bright Surface 4140 Alloy Tool Steel

DONGGUAN MISUNG MOULD STEEL CO.,LTD

Verified Supplier
5 Years
guangdong, dongguan
Since 2003
Business Type :
Manufacturer, Distributor/Wholesaler, Trading Company
Main Products :
Mold Tool Steel, Cold Work Tool Steel, Hot Work Tool Steel
Total Annual :
1500000-2000000
Employee Number :
80~150
Certification Level :
Verified Supplier
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