Company Details
  • SHANDONG LE REN SPECIAL STEEL CO., LTD.

  •  [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 Ht Qt Round Steel Bar,4140 Pre Heat Treat Round Steel Bar,4140 Round Steel Bar Preheard Hardness
SHANDONG LE REN SPECIAL STEEL CO., LTD. 4140 Ht Qt Round Steel Bar,4140 Pre Heat Treat Round Steel Bar,4140 Round Steel Bar Preheard Hardness

4140 pre heat treated steel bar

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    Unit Price: USD 600 / Metric Ton
    Payment Type: D/A
    Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,DDP,DDU,Express Delivery
    Min. Order: 5 Metric Ton

Basic Info

Model No.4140

BrandLE REN

StandardAisi, Astm, Bs, Din, Gb, Jis

Place Of OriginChina

Production ProcessCold Drawn

ApplicationStructural Steel Bar, Die Steel Bar, Tool Steel Bar

Whether AlloyIs Alloy

Special SteelCold Heading Steel

SpeciesAlloy Steel Bar, Carbon Steel Bar

Tolerance±1%

Processing ServiceCutting

Additional Info

PackagingCarton + Wooden Box

Productivity50000 tons

TransportationOcean,Land,Air,Express,Express

Place of OriginChina

Supply Ability3000 pices per month

CertificateISO9001

HS Code72283090

PortQingdao,Shanghai,Tianjin

Payment TypeD/A

IncotermFOB,CFR,CIF,EXW,FCA,CPT,DDP,DDU,Express Delivery

Product Description

4140 pre heat treated steel bar 


4140 pre heat treated steel bar is 4140 steel bar after quenching and tempering before using, it can also be called as 4140 hardened steel bar or 4140 quenched & tempered steel bars, 4140 qt steel bar and 4140 ht steel bar. 4140 pre hardened steel bar has high hardness and good mechanical properties. We can produce 4140 pre heat treated steel bar with difference hardness mechanical properties according to customers different technical requirements. We can supply various 4140 pre heat treated steel bar such as 4140 tg&p steel bar, 4140 peeled & polished steel bar, 4140 cold drawn and QT steel bar etc.

Img 20201113 152119

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 : Heat Treated Steel Bar And Tube > Quenched And Tempered Steel Bar

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  • 4140 pre heat treated steel bar
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