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USALOY 4140 / USEN 4140 - 1% Chromium Molybdenum Steel
Rounds Bright Drawn
Rounds Hot Rolled
 

General

Colour Yellow / White
Bright Drawn AISI/SAE 4140
Hot Rolled AISI/SAE 4140

Chemical Compostition
C
Mn
Si
S
 P Cr
Mo
Percentage 0.38-0.43 0.75-1.00 0.15-0.35 0.040max 0.035max 0.80-1.10 0.15-0.25
NB. AISI/SAE specifications do not specify mechanical

Form of Supply
Bright Bars: Hardened & Tempered
Sizes up to 65mm/2-1/2" dia.
Supplied in T condition
Hot Rolled Bars: Hardened & Tempered
Sizes up to 70mm/2-3/4" - 100mm/4" dia.
Supplied in S condition
Inclusion Modified
Sizes 105mm - 240mm dia.
Supplied in R condition

 

Rounds Bright Drawn / Turned Stock Size Range - IQ


Size (ins) 1/4 5/16 3/8 7/16 1/2 1 5/8 11/16 3/4 1 1 1 1 1/4 1 3/8
1 1/2 1 5/8 1 3/4 1 7/8 2 2 1/4 2 1/2 2 3/4 3          
Size (mm) 16 20 22 25 30 32 40 45            

 

Rounds Hot Rolled Stock Size Range - IQ


Size (mm) 25 32 35 38 40 45 50 55 60 65 70 75 80 85
90 95 100 105 110 115 120 125 130 140 150 160 170 180
190 200 220                      
 

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