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Re: GR 55 Anchor Bolts

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----- Original Message -----
From: Bob Lea <bob.lea(--nospam--at)arup.com>
To: <RainCat1(--nospam--at)aol.com>; <Seaint(--nospam--at)seaint.org>
Sent: Friday, October 08, 1999 9:30 AM
Subject: Re: GR 55 Anchor Bolts


> It is possible  that your HD bolt is to a British Standard BS4360.  Steel
grade 55 to this standard is generally used in the fabrication of rolled
steel sections, flat bars and round and square bars.  It is not a bolt
material specification but it is not unknown for contactors to manufacture
long bolts from this material for specific uses, eg lattice tower holding
down bolts.
>
> Mechanical properties for round bars are:
>
> Grade       Tensile                            Yield Strength
>                  Strength     <=16mm     >16 to     >25 to    >40 to
>                                                        25mm     40mm
63mm
>
> 55C         550/700        450               430         415        -
> 55E         550/700        450               430         415       400
>
> Units are MPa.
>
> I hope this helps.
>
>
>