What does SG2 mean for knives?

knife aficionados say that SG2 stands for Super Gold. SG-2 steel is a product of the Japanese Powder Metallurgy (PM) steel. The original producer was the Takefu steel company.

What is SG2 metal?

SG-2 is a powdered stainless steel that is well known for excellent wear resistance and is considered a great steel for high end, high quality kitchen knives. – Made up of Carbon: 1.25 – 1.45%, Vanadium: 1.80 – 2.20%, Chromium: 14.00 – 16.00%, Molybdenum: 2.30 – 3.30%, Manganese: . 40%, Phosphorus: .

Does SG2 steel rust?

SG2 / SGPS – Stainless powder steel Its fine structure and good distribution of the elements makes it possible to add more alloy elements than in ordinary stainless steel. That increases the hardness and cutting characteristics. Nevertheless, the rust resistance of SG2 / SGPS is higher than that of VG10 steel.

Is Sg2 hard to sharpen?

In my experience, SG2 is no harder to sharpen than any other PM steel.

Is SG2 hard to sharpen?

What is hap40 steel?

HAP-40 is a powder metallurgy High Speed Tool Steel from Hitachi Metals Ltd. It’s rich chemical composition and fine microstructure allows the production of knives that posses an outstanding balance of hardness, toughness and edge retention.

Does Vizient own SG2?

About Vizient, Inc The Vizient brand identity represents the integration of VHA Inc, University HealthSystem Consortium and Novation, which combined in 2015, as well as MedAssets’ Spend and Clinical Resource Management (SCM) segment, including Sg2, which was acquired in 2016.

How do you heat treat VG10 and SG2?

I heat treated the two steels using the approximate standard temperatures recommended on the Takefu website. I used a 1975°F austenitize for VG10 and a 2000°F austenitize for SG2, each for 20 minutes, plate quenched, liquid nitrogen, and then tempered twice for 2 hours at 400°F.

What is the percentage of VG to SG2?

In the patent, Takefu lists several steels that were analyzed to develop SG2 (1-7), and those were compared to the standard grades D2 and 440C: The patent does not describe much where these different alloy amounts came from. The 14-15% Cr probably came from their previous VG steels. VG1, VG2, and VG5 all have 14% Cr and VG10 15% Cr.

What are the advantages of SG2 and S90V?

The reduced Cr content in SG2, S90V, and S30V helps to reduce the amount of chromium carbides and therefore improve toughness. The vanadium leads to the formation of vanadium carbides and increases the hardness of the chromium carbides, and both of those improve wear resistance and edge retention.

What is the difference between Elmax and SG2?

Perhaps Elmax is a bit finer in its structure. I calculated SG2’s chromium carbide at 12.8% and its vanadium carbide at 0.5%. The vanadium carbide is relatively low because of the interactions with chromium which limit vanadium carbide formation.