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Properties of steel grade HY-GK60 required

Properties of steel grade HY-GK60 required

Properties of steel grade HY-GK60 required

(OP)
Hi all,

Does anybody know the yield stress and ultimate tensile stress of grade HY-GK60 steel?  I have not been able to find and reference to this grade but we think the 60 may refer to 60,000psi yield stress.

Thanks

RE: Properties of steel grade HY-GK60 required

I believe th HY is high yeild.  The only Hy reference i've seen is HY80 which is 80ksi min yield

RE: Properties of steel grade HY-GK60 required

In the UK, GK-60 used to stand for Guest Keen & Nettlefolds (South Wales Limited) bars manufatured from grade 60 steel with the minimum guaranteed yield stress of 60,000psi (described also by the manufacturer as Hot Rolled High Yield Deformed bars). The tensile strenght is at least 15% above the measured yield load.The guaranteed minimum elongation is 12%.

It is aslo claimed by the manufacturer that it has enhanced (by 40%) bond stresses. For the designs according to the CP114 (UK permissible stresses based code)the anchorage lengths should be between 40 and 50 diameters, depending on the bar diameters, stresses in the bars and the concrete mixture.

Above is based on the GK&N (South Wales) Ltd. brochure from 1965. Hope this helps.

RE: Properties of steel grade HY-GK60 required

(OP)
Thanks bkal,

An indented bar ties in with the drawings.

For those who are interested; the bars are 32mm dia with a M30 thread each end and used as holding down bolts for a tower.

Regards,
   Wahmit

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