4140 Annealed Cold Rolled Round Bar | Coremark Metals

4140 Annealed Cold Rolled Round Bar

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Description

4140 cold rolled round bars are an excellent candidate for most processing techniques.  4140 annealed cold roll bars is a high strength and abrasion resistant alloy. Extreme size accuracy, straightness and concentricity combine to minimize wear in high speed applications. Commonly used in gears, shafts, axles, bolts, studs and machine parts. Found within the automotive, defense, agriculture, aerospace, and oil and gas industries.

Features

ASTM

ASTM A108

Characteristics

4140 (Annealed)
High strength. Good wear & abrasion resistance. Heat treatable.

Alloy

4140

Specifications

CHEMICAL COMPOSITION

Element Percentage
C 0.38 - 0.43
Cr 0.8 - 1.1
Fe 96.785 - 97.84
Mo 0.15 - 0.25
Mn 0.7 - 1
P 0.035 max
Si 0.15 - 0.3
S 0.04 max

 

MECHANICAL INFORMATION

  Imperial Metric
Density 0.284 lb/in3 7.85 g/cc
Ultimate Tensile Strength 165,000psi 1,140 MPa
Yield Tensile Strength 140,000psi 965 MPa

 

Hardness Brinell 228
Hardness Rockwell B98
Temper Annealed
Production Method Cold Finish
The provided chemical compositions and mechanical properties are general approximations. Please contact our Customer Service Department for material test reports.
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Available Sizes

AVAILABLE SIZES

Size Length Weight
(lbs/ft)
3/16" 144.00" 0.094
1/4" 144.00" 0.167
3/8" 144.00" 0.376
1/2" 144.00" 0.668
9/16" 144.00" 0.840
5/8" 144.00" 1.043
3/4" 144.00" 1.502
7/8" 144.00" 2.045
15/16" 144.00" 2.347
1" 144.00" 2.670
1-1/4" 144.00" 4.173
1-1/2" 144.00" 6.008
1-3/4" 144.00" 8.178
2" 144.00" 10.680
3" 144.00" 24.030


 

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