Manufacturing & Distributing Hot Rolled & Bright Steel Bar Worldwide

Carbon Key Steel – Square

Finish: Bright Drawn


USAKEY – Carbon Key Steel – Colour: Red/Yellow
Bright: BS 46: Part 1: 1958, BS 4235: Part 1: 1972


 

Characteristics:

USAKEY is supplied in the form of Bright Drawn Steel Bars to dimensions and tolerances stipulated in BS 46: Part 1: 1958 ‘Keys and Keyways’ for imperial sizes and BS 4235: Part 1: 1972 ‘Parallel and Taper Keys’ for metric sizes. All imperial bars are supplied to the chemical analysis 0.45% Carbon maximum, 0.60/1.00% Manganese, whilst metric bars are supplied to 0.42/0.50% Carbon, 0.50/0.80% Manganese.

 

Form of Supply:

Bright bars: As drawn with a tensile strength 540-700 N/mm²

Tolerances:

Imperial Squares (plus tolerances)  
Up to and incl. 7/8” +.002”
Over 7/8” Up to and incl. 1.1/4” +.003”
Over 1.1/4” +.004”

 

Metric Squares (minus tolerances)  
4mm Up to and incl. 6mm -.030mm
Over 6mm Up to and incl. 12mm -.036mm
16mm -.043mm

 

Stocked sizes – Squares – Inches

1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1.1/4 1.1/2
x x x x x x x x x x x x x x

 

Stocked sizes – Squares – mm.

4 5 6 8 10 12 16
x x x x x x x

 

Lengths – Standard bar lengths are 3/3.5 metres


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