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MMC Silver Steel
Rounds 78 ins / 2 m
 

General

Reference
BS 1407: 1970

Chemical Compostition
C
Mn
Si
S
 P Cr
Percentage 1.10-1.20 0.25-0.45 0.40 max. 0.035 max. 0.035 max. 0.35-0.50

Form of Supply
Round Bars centreless ground: (Sizes below 1/8" (3mm) are bright drawn).
Lengths: 13"/333mm, 78"/2 metres and 118"/3 metres.
1 metre lengths are available cut to length.
Hardness: Annealed to HB 285 max.

Tolerances - Rounds
Imperial Sizes
Below 1" dia.
±0.00025"
1" dia. and over
±0.0005"
Metric Sizes
25 mm. dia. and under
+0.000 mm./-0.010 mm.
Over 25 mm. dia.
+0.000 mm./-0.020 mm.


 

Rounds 13 ins / 333 mm Lengths Stock Size Range

Size (ins dia) 1/16 3/32 1/8 5/32 3/16 7/32 1/4 9/32 5/16 3/8 7/16 1/2 9/16 5/8
11/16 3/4 7/8 1 1 1/8 1 1/4 1 1/2 1 3/4 2          
Size (mm dia.) 2.0 2.5 3.0 3.5 4.0 4.5 5.0 6.0 7.0 7.5 8.0 9.0 9.5 10.0
12.0 13.0 14.0 15.0 16.0 17.0 18.0 20.0 22.0 24.0 25.0 28.0 30.0 40.0
45.0 50.0                        

 

Rounds 78 ins / 2 m Lengths Stock Size Range

Size (ins dia) 1/16 3/32 1/8 5/32 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4
13/16 7/8 1 1 1/8 1 1/4 1 1/2                
Size (mm dia.) 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5
9.0 10.0 10.5 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 20.0 22.0 24.0
25.0 26.0 30.0                      


 

Rounds 118 ins / 3 m Lengths Stock Size Range

Size (ins dia) 1/4 3/8 1/2 5/8 3/4      
Size (mm dia.) 6 8 10 12 14 16 20 25
 

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