Compared the composition of the AISI S1 tool steel against SAE J438b standard code, found considerable discrepancies, one of the oldes entries in the database. Fixed according to standard code. While at it, checked the rest of the S series shock resistant tool steels in the database. S5 tool steel composition was also off slightly, fixed that one too.
Monday, March 28, 2011 18:53:24
Fixed AISI L6 steel and AISI L7 steel compositions according to SAE J438b standard code. For L6 steel added corresponding footnotes from standard code regarding Mn content and presence of Mo and V in the alloy, apparently those two are optional.
Sunday, March 27, 2011 11:13:56
I've known about Takefu COS-3 steel a little over a year. Finally I got the composition :) From Spyderco forums. Used in Spyderco mule for now.
Thursday, March 24, 2011 20:43:21
W4Mo3Cr4VSi steel - high speed Tungsten/Molybdenum tool steel. Somewhat close to AISI M2, but has higher Mo and W content, with a little less Carbon. Some dealers claims it performs better than D2 steel, but composition is way different.
Wednesday, March 23, 2011 21:47:07
Continued adding/adjusting high speed and other tool steel compositions from GB/T standard specification. And working on Steel Chart for android 2.0...
Tuesday, March 22, 2011 22:35:27
Updated existing and added compositions for Chinese GBT 9943 High speed steel standard code. Most of the GB high speed tool steels now have exact compositions as per the standard. Working on further enhancements.
Monday, March 21, 2011 21:40:03
Custom made, small paring knife. I asked Shinichi to make it for me, according to my specs, for quite specific tasks, basically for veggie prep. Specific tasks, but there's several of them, so it demands rather versatile knife, and so far, this small knife is holding up just about perfect. Chilsel grind edge, to maximize cutting ability and reduce drag, wider than standard paring knife, but about the same length. Can't say it outperforms dedicated knives for harsher cuts, but its holding its own, and I only have to use one knife for preparation of about 20 different vegetables.
Sunday, March 20, 2011 16:43:35
I think that one has been around for few months, if not more than that. Value table for elements starting with 0 were not displayed on the graph, although correct value was properly displayed in the table or legend. All displayed properly now.
Friday, March 18, 2011 20:49:51
Kitchen knife superstar in western knives, X55CrMoV15 steel, just got exact specs from the DIN standard. Also, form the same standard, exact specs for the X55CrMo14 steel. I had X55CrMoV15 very close to standard specs, but X55CrMo14 was missing Vanadium, P and S contents. Well, we have exact info now.
Thursday, March 17, 2011 21:17:35
Chromium ball bearing steels, from SUJ 1 to SUJ 5 added. Two of them were already in the database, fixed their composiiton according to JIS standard spec. In case you are wondering, thay're closer to very popular AISI 52100 bearing steel, and some closer to 51100 steel.
Wednesday, March 16, 2011 14:14:44