Company Details

  •  [Shandong,China]
  • Business Type:Manufacturer
  • Main Markets: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:71% - 80%
  • Certs:ISO9001, Test Report, API, CE, TUV
  • Description:4140 Steel Bar,4140 Steel Round Bar Specifications,4140 Round Bar
SHANDONG LE REN SPECIAL STEEL CO., LTD. 4140 Steel Bar,4140 Steel Round Bar Specifications,4140 Round Bar

aisi 4140 round bar

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    Unit Price: USD 600 / Metric Ton
    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Min. Order: 5 Metric Ton
    Delivery Time: 15 Days

Basic Info

Model No.aisi 4140


TypeAlloy Steel Bar


TechniqueHot Rolled

ApplicationStructural Steel Bar

Surface TreatmentPolished


Special UseMold Steel

Additional Info

PackagingAnti-rusty packages

Productivity3000 per month


Place of OriginLAIWU, CHINA

Supply Ability3000 per month


HS Code72283090


Payment TypeL/C,T/T,D/P,Paypal,Money Gram,Western Union


Delivery Time15 Days

Product Description

aisi 4140 Round Bar

Our company is a factory to produce Cold Drawn Steel Bar such as Cold Drawn Steel Round Bar, cold drawn Square Steel Bar , cold drawn flat steel bar and cold drawn hex steel bar, heat treated steel bar such as Annealed Steel Bar, Normalized Steel Bar, Quenched And Tempered Steel Bar . One of our major product is Aisi 4140 Round Bar , we can produce aisi 4140 hot rolled Steel Round Bar , aisi 4140 cold drawn steel round bar, aisi 4140 annealed steel round bar and aisi 4140 quenched & tempered steel round bar. aisi 4140 round bar specification is as below:

4140 steel specicification:

1. 4140 equivalent steel material: 42CrMo, 42CrMo4, 4140, scm440, 42cd, as 4140

2. 4140 steel chemical composition: C: 0.38-0.48, Si: 0.15-0.35, Mn: 0.75-1.00, S/P: 0.035 max, Cr: 0.90-1.20, Mo: 0.15-0.25

3. 4140 steel grade: Astm A193 grade B7, ISO grade 8.8, 10.9, 12.9, Astm F1554 Grade 105

4. 4140 steel common mechanical properties:

Tensile Strength: 860MPa min

Yield Strength: 720MPa min

Elongation: 16% min

Reduction of Area: 52% min

Hardness: 35HRC max

5. 4140 steel bar shapes:

4140 Round Steel Bar , 4140 square steel bar, 4140 flat steel bar, 4140 hexagonal steel bar

6. 4140 technical parameters:

A.4140 steel bar diameters: 10mm to 100mm

B. 4140 steel bar diameter tolerance: 0.025 mm min

C. 4140 steel bar length: 100mm min per piece

D. 4140 steel bar length tolerance: +/-1mm

E. 4140 steel bar surface roughness: 0.4um min

F. 4140 steel bar straightness: 0.5mm/m min

G. 4140 steel bar ovality: 75% of diameter tolerance

7. 4140 steel bar applications:

high strength stud bolt, Threaded Rods , wind power bolt, prestressed anchor bolts, post stressed anchor bolt, Steel Tie Rod , tie bar, tension rod, Tension Bar etc. Shaft, axle shaft, crankshaft, shaft for sleeve, linear shaft, pump shaft, rotor shaft, sensor shaft, spline shaft, drive shaft, mandrel shaft, transmission shaft, screw rod etc. CNC machines, precision CNC machines etc. Ejector pins and Ejector rods

Product Categories : Bright Steel Bar > Ground And Polished Steel Bar

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  • aisi 4140 round bar
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