Small Keris, dagger

JamesKelly · 15th October 2013, 10:41 PM

Back to former workplace Oct 10, got to use an X-ray fluoroscope, one that seems good on non-ferrous, not so sure about steel.

The little/oversize "brass" hilt ring analysis is:
67.6% copper; 20.84% zinc; 4.51% silicon; 3.25% tin; 2.33% lead; 1.21%iron and 0.18% phosphorus.

Perhaps a copper-alloy metallurgist can make something of this. If he studies copper alloys of Indonesia. The silicon surprises me, guess it would make the alloy fairly hard. Lead is usually added to make castings more sound, iron & phosphorus just residual impurities.

The blade is of course a mix of at least two different steel grades, some part of it is about 1% nickel, 0.13% phosphorus.

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15th October 2013, 10:41 PM	#5
JamesKelly Member Join Date: Aug 2013 Location: Michigan, U.S.A. Posts: 108	Back to former workplace Oct 10, got to use an X-ray fluoroscope, one that seems good on non-ferrous, not so sure about steel. The little/oversize "brass" hilt ring analysis is: 67.6% copper; 20.84% zinc; 4.51% silicon; 3.25% tin; 2.33% lead; 1.21%iron and 0.18% phosphorus. Perhaps a copper-alloy metallurgist can make something of this. If he studies copper alloys of Indonesia. The silicon surprises me, guess it would make the alloy fairly hard. Lead is usually added to make castings more sound, iron & phosphorus just residual impurities. The blade is of course a mix of at least two different steel grades, some part of it is about 1% nickel, 0.13% phosphorus.