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450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel

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450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel

450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel
450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel 450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel 450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel 450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel

Large Image :  450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel

Product Details:
Place of Origin: china
Brand Name: takford
Model Number: 4140/42crmo/scm440/1.7225
Payment & Shipping Terms:
Minimum Order Quantity: 1 pieces
Price: USD 1-2/KG
Packaging Details: Standrad export seaworthy package/ wooden box package
Delivery Time: 5-8 DAYS
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000 TONS PER MONTH

450mm Black Surface 1.7225 Round Bar Forged Alloy Tool Steel

Description
Products Name: 1.7225 Forged Tool Steel Round Bar 450mm Diameter Black Surface Technology: Forged
Steel Grade: 4140/42crmo/scm440/1.7225 Shape: Steel Round Bar
Surface: Black Application: Machine, Industry
High Light:

1.7225 Alloy Tool Steel

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1.7225 450mm Forged Tool Steel

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450mm Alloy Tool Steel

1.7225 Forged tool steel round bar 450mm diameter black surface

 

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.

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Contact Person: Merain Pan

Tel: +8613537200896

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