Can you oil quench stainless steel?

Cooling and Quenching
Martensitic stainless steels have high alloy content and, hence, high hardenability. Full hardness can be achieved through air-cooling at the austenitising temperature, but hardening larger sections may sometimes require oil quenching.
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Can you water quench stainless steel?

In general duplex stainless steel is water quenched immediately after solution annealing. The faster the cooling rate the higher the hardness (in steels). Water-quenched steels will generally be harder than oil-quenched steels.
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Can stainless steel be quench hardened?

Types of stainless steel

Austenitic stainless steels cannot harden via heat treatment. Instead, these steels work harden (they attain hardness during their manufacture and formation). Annealing these stainless steels softens them, adds ductility and imparts improved corrosion resistance.
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Can you use any oil to quench steel?

Mineral and transmission oils are a suitable alternative for engine oils. They don't normally contain additives that can interfere with the quenching process. Mineral oil quenchants are excellent for oil-hardened steels and steels that require a fast quench rate.
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What oil do blacksmiths use to quench?

Blacksmiths also use oils to quench. While commercial quenching oil is the best quality and the most specific oil, motor oil, mineral oil, and even vegetable oil can yield positive results when quenching.
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Stainless Steel Heat Treatment: Oil vs. Plate Quench



What did medieval blacksmiths quench their blades in?

The smith then heats the metal so that both the iron and steel are molten and join. The blade is tempered—transformed from soft, workable metal into a hard blade—by holding the blade over a fire and then quenching the blade in a vat of oil or brine.
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Can you make a knife out of 304 stainless steel?

Low carbon versions of austenitic stainless steel, such as 304L, should be avoided when making knives unless corrosion resistance is the main concern and blade life is secondary. There are also precipitation-hardening stainless steels that have excellent corrosion resistance and hardenability properties.
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Can you make a knife out of 316 stainless steel?

Kitchen Knives

Typical stainless steel used in knife-making includes 420 (cutlery grade stainless steel), 440 (higher grade cutlery stainless steel that has more hardness and edge retention) and 316 (a common food and surgical grade stainless steel).
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Can 304 stainless steel be hardened?

304 stainless steel cannot be hardened by heat treatment. Solution treatment or annealing can be done by rapid cooling after heating to 1010- 1120°C.
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What happens if you quench stainless steel?

Austenitic stainless steels are not hardenable by heat treating, and therfore there is no problems with things like quench cracking.
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Why SS is not heat treated?

With sufficient quantities of nickel, stainless steel remains austenite at room temperature, creating the austenitic steels. They are nonmagnetic and cannot be heat treated for through hardening like carbon steels because the phase transformation to martensite does not occur in these alloys.
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Is stainless steel good for knife making?

Carbon and stainless steel are both capable of making excellent knives that are durable and can get very sharp. When purchasing a new knife, we suggest thinking about how you work and how much you want to care for your knife while using it, because in the end, the right knife is the one that you're going to use.
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Do you have to temper stainless steel?

Parts should be tempered as soon as they have cooled to room temperature, particularly if oil quenching has been used, to avoid delayed cracking. Tempering at temperatures above 950°F (510°C) should be followed by relatively rapid cooling to below 750°F (400°C) to avoid embrittlement at 885°F (475°C).
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Can you stress relief stainless steel?

1. Low-temperature, that is, 450-750ºF (230-400ºC) stress relief results in modest reduction of internal stress and is especially useful when austenitic stainless steels have been cold worked to develop high strength since it will also increase the proportional limit and (compressive) yield strength. 2.
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Are lawn mower blades hardened?

Yes, lawnmower blades are tempered. Tempering is used to make the blade durable, stronger, and tougher. However, the temperature of doing so often depends on the type of metal. Steel is the preferred metallic material for making lawnmower blades.
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Why should knives have a full tang?

A full tang increases the overall weight of a knife. It also creates balance. Without the tang, there's only the handle to compensate for the weight of the knife's blade. Even held firmly, the knife would have a tendency to tip forward, so its point would always want to head towards the cutting board.
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What is the hardest steel for knives?

W2 Steel: W2 Steel is highly preferred for outdoor knives due to its extreme hardness and durability. W2 Steel is some of the toughest steel you can find and is excellent for outdoor knives.
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Is Damascus steel stronger than stainless steel?

As we will see later, when it comes to sharpness and durability, there is no difference between Damascus steel and stainless steel. The different elements that go into making stainless steel combine to make it strong and long-lasting. It can thus be made into a very thin blade with long edge retention.
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Can stainless steel make Damascus?

Stainless damascus of course has the benefit of being stain resistant. Making stainless damascus offers many difficulties over producing carbon steel damascus. Carbon steel damascus is much more commonly produced. When using the proper stainless steels compromises do not have to be made with corrosion resistance.
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Can stainless steel be used in Damascus?

Today, the term “Damascus” has come to mean any steel with a visible grain pattern. Modern methods for making stainless Damascus result in a laminated effect, with many layers of folded steel comprising the blade. This process, known as pattern welding, requires two types of steels, one with a high content of nickel.
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Why are there no titanium swords?

Titanium is not a good material for swords or any blades. Steel is far better. Titanium cannot be heat treated sufficiently to gain a good edge and will not retain edge.
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Can you use used motor oil for quenching?

Motor oils are a common type of quenching oil used in both blacksmithing and bladesmithing applications. New and used motor oils can be used for quenching and are both widely available. New motor oil is typically cheaper to use than commercial quenching oils.
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Can you forge rebar?

Cons of Forging with Rebar

A first major con of using rebar for blacksmithing is its unpredictable nature. Most rebar is not made of quality metals and can even contain dangerous fumes when worked. What is this? You can never be sure what the rebar is made of, so final projects can end up brittle.
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