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USALOY 351 / USEN 351 - 3/4% Nickel Chromium Case-Hardening Steel

 

General


Colour Bright Drawn: White / Black Hot Rolled: Yellow / Green
Bright Drawn BS 970: Part 3: 1991: 635M15 BS 970: 1955: En351
Hot Rolled BS 970: Part 1: 1983: 635M15

BS 970: 1955: En351


Chemical Compostition
C
Mn
Si
S
P
Cr
Ni
Percentage 0.12-0.18 0.60-0.90 0.10-0.40 0.050max* 0.040max** 0.40-0.80 1.50-2.00
The above composition applies to both parts of BS 970: 1991 except :
* Sulphur content for BS 970: Part 1 is 0.040% max.
** Phosphorus content for BS 970: Part 1 is 0.035% max.

 

Rounds Bright Drawn / Turned Stock Size Range - IQ


Size (ins) 1/2 5/8 3/4 7/8 1 1 1/8 1 1/4 1 1/2 1 5/8 1 3/4 1 7/8 2 2 1/4 2 1/2
3                          

 

Rounds Hot Rolled Stock Size Range - IQ


Size (mm) 35 40 45 50 55 60 65 70 75 80 85 90 95 100
105 110 120 130 140 150 180              
 

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