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4140 hexagonal steel bar
4140 hexagonal steel bar
4140 hexagonal steel bar

4140 hexagonal steel bar

$800-1100 /Metric Ton

Min. Order:5 Metric Ton
Product Attributes

Place Of OriginChina

Packaging & Delivery
Selling Units : Metric Ton
cold drawn steel bar.mp4
Product Description

4140 Hex Steel Bar


4140 hex steel bar is 4140 Hexagonal Steel Bar, it is usually cold drawn by 4140 Hot Rolled Steel Round Bar to 4140 cold drawn hexagonal steel bar. We can supply 4140 annealed and cold drawn hex steel bar, 4140 cold drawn and annealed hex steel bar and also 4140 ht hex steel bar. 4140 steel is a Chromium-Molybdenum through-hardening steel of medium hardenability. It is a general purpose high-tensile steel with medium strength level and good impact properties.


Cold finished steel is cold drawn or cold rolled by hot rolled steel. It is typically produced as turned bars or cold drawn bars. Cold Drawn Steel Bar is accomplished by cold drawing a bar through a mould. By cold drawing, the dimensional tolerances, the straightness and the surface roughness of the bars will be improved. In the meanwhile, the mechanical properties will be enhanced, too.


4140 cold drawn steel bar we supply includes following advantages:

Consistent mechanical properties

Deep mechanical properties (from surface to the center according to your requirement)

Even hardness on the whole bars/Tougher and Increased strength

No brittle, UT testing/Precision size tolerance/Good straightness

Good Roughness/Professional technical service/Competitive price/Fast delivery


Specification of 4140 cold drawn steel bar we supply:

Sizes

Wide range from 14mm to 100mm

Tolerances

Precision to h9, h10, h11 or even small to 0.02mm

Roundness

75% of diameter tolerance

Straightness

Good straightness to 0.5mm/m

Surface roughness

Smooth to 0.8um

Mechanical properties

Yield strength and tensile strength can be improved

Machining

Suitable for machining and welding


1. 4140 steel equivalent material:

GB 

ASTM/SAE/AISI 

DIN 

SCM

AS /NZS1444

42CrMo

Aisi 4140 / sae 4140 / astm 4140

42CrMo4 / 42CrMoS4

SCM440

AS 4140

2. 4140 steel chemical composition:

Materail

Chemical Composition %

ASTM/SAE/AISI 

C

Si

Mn

S

P

Cr

Mo

Aisi 4140 / sae 4140 / astm 4140

0.38-0.43

0.15-0.35

0.75-1.00

0.035 max

0.035 max

0.80-1.10

0.15-0.25

 3. 4140 steel mechanical properties:

Mechanical Properties

Yield Strength (MPa)

Tensile Strength (MPa)

Elongation

Reduction of area

AKV (J)

930 min

1080 min

12% min

45% min

63 min

4. 4140 steel 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

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