MAC 431 Se - Martensitic Chromium Nickel Super Freecutting Stainless
Products:

 

General


Colour Brown / Black
Bright Drawn BS 970: Part 4: 1991: 441S49 BS 970: 1955: En57 KE 431 Se

Chemical Compostition
C
Mn
Si
S
P Cr Mo Ni Se
Percentage 0.12-0.20 1.50 max. 1.00 max. 0.030 max. 0.040 max. 15.0-18.0 0.60 max. 2.00-3.00 0.15-0.30

Form of Supply
Centreless Ground Bars: Hardened and Tempered to 'T' Condition.

Tolerances for Stainless Centerless Ground Bar
Imperial Sizes:
Up to 7/32" dia ±0.0005".
Metric sizes:
(ISO h8)
>1mm to 3mm -0.014mm.
1/4" - 1 1/2" dia ±0.001"
>3mm to 6mm -0.018mm.
1 5/8"- 2" dia ±0.002".
>6mm to 10mm -0.022mm.
2 1/8" - 3" dia ±0.0025".
>18mm to 30 mm -0.033mm
>10mm to 18 mm-0.027mm.


 

Rounds Centerless Ground Stock Size Range


Size (ins dia.) 3/16 5/16 1/2 9/16 5/8 3/4 7/8 1 1 1/4 1 5/8
   

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