Product Details, Specifications, and Technical Information

Alloy Steel Rectangle Bar 4140, also referred to as Chromoly Steel, is known for strength, resistance to fracturing, abrasion, and impact in high stress applications. 4140 is popular for a wide range of applications and is ductile and easily machined in the annealed state. It is commonly used for gears, shafts, spindles, fixtures, bolts, valves, sprockets, pistons, and collars in various high-stress and heavy-duty applications.
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Dimension Name Specification
Thickness 0.25
Width 4
Brand MSP Metals
MTR Availability Yes
Material Alloy Steel
Shape Bar-Rectangle
Domestic false
Specs: ASTM ASTM A193 B7
Rockwell Hardness Rc 28-32
Alloy 4140
Temper Heat Treated
Production Method Decarb Free
DFAR false
Weight/Lineal Foot
3.5 pounds
Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.
Chemistry Information: 4140 Alloy Steel
Element Percentage
C 0.38 - 0.43
Cr 0.8 - 1.1
Fe 96.785 - 97.84
Mn 0.7 - 1
Mo 0.15 - 0.25
P 0.035 max
S 0.04 max
Si 0.15 - 0.3
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