300M Alloy Round Bar

300M Alloy Round Bar

Product:Round Bar
Technique:Hot Rolled
Standard:ASTM JIS GB EN DIN
Tolerance:±1%
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Description
Technical Parameters

300M alloy round bar

 

Round Bar Products Description

 

AISI 300M round stock steel is a low alloy vacuum melted alloy steel. 300M is a modified version of AISI 4340 solid round bar with higher molybdenum and silicon content compared to AISI 4340 round rod.
 

300M round metal stock has high strength, good toughness, fatigue strength and ductility; this makes 300M solid steel round bar useful in aircraft landing gear, fuselage components, flap rails, missile components and some motorsport applications.

 

 300M Alloy Round Bar Products Details

 

Chemical Composition (Wt %)

  C Si Mn P S S+P Cr Mo Ni V
Min 0.39 1.5 0.6 0.7 0.3 1.65 0.05
Max 0.44 1.8 0.9 0.015 0.015 0.025 0.95 0.45 2 0.10

Typical Mechanical Properties

  0.2% Proof Stress Tensile Strength Elongation Reduction of area
  MPA MPA % %
  Min Min Max Min Min
Longitudinal 1550 1900 2100 8 30
Transverse 1550 1900 2100 5 20

 

Round Steel  Products Image

 

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