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Norme · 01-15-2014, 11:58 AM

Hi Ben, The #30 is the hardness number on the Böhler Scale, a proprietary system devised by the eponymous Austrian steel company. It's similar to the Brinell scale used here in the US.
Regards, Norm

01-15-2014, 11:58 AM	#18
Norme Always A Lifetime Forum Patron Join Date: Jul 2009 Location: Colorado Posts: 2,417 Thanks: 226 Thanked 2,607 Times in 933 Posts	Hi Ben, The #30 is the hardness number on the Böhler Scale, a proprietary system devised by the eponymous Austrian steel company. It's similar to the Brinell scale used here in the US. Regards, Norm