Good quality 100% L6 Tool Steel | 1.2714 | 55NiCrMoV7 | SKT4 | BH224/5 Wholesale to Tajikistan
In ASTM A681 standard, L6 steel grade is in L-type for special purpose tool steels. AISI L6 tool steel is in the general class of alloy, oil-hardening tool steel that is characterized by good toughness. ASTM L6 tool steel is suitable for use as tools, dies, and machine parts, which require a good combination of hardness and toughness. Due to its lower carbon content and relatively high nickel content, L6 tool steel has slightly better shock-resistance than more highly alloyed types and shoul...
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is in the general class of alloy, oil-hardening tool steel that is
characterized by good toughness. ASTM L6 tool steel is suitable for use
as tools, dies, and machine parts, which require a good combination of
hardness and toughness.
Due to its lower carbon content and
relatively high nickel content, L6 tool steel has slightly better
shock-resistance than more highly alloyed types and should be used where
some wear-resistance can be sacrificed for increased toughness.
1. Relevant Steel Specification of L6 Tool Steel
2. AISI L6 Steel Chemical Composition and Steel Equivalents
|L6/T61206||0.65||0.75||0.25||0.80||0.03||0.03||0.10||0.50||0.60||1.20||. . .||. . .||. . .||0.50||1.25||2.00|
|DIN ISO 4957||C||Mn||P||S||Si||Cr||V||Mo||Ni|
|BH224/5||0.49||0.57||0.70||1.00||0.03||0.025||. . .||0.35||0.70||1.10||. . .||. . .||0.25||0.40||1.25||1.80|
3. ASTM L6 Tool Steel Mechanical Properties
Steel L6 Physical Properties
Modulus of elasticity [103 x N/mm2]: 215
Density [g/cm3]: 7.84
Thermal conductivity [W/m.K]: 36.0
Electric resistivity [Ohm mm2/m]: 0.30
Specific heat capacity[J/g.K]: 0.46
Mechanical Properties of L6 Steels
|Poisson’s ratio||0.27- 0.30||0.27- 0.30|
|Elastic modulus||190-210 GPa||27557-30457 ksi|
4. Forging of L6 Tool Steel
Forge at 1079°C (1975 F) down to 871°C (1600 F). Do not forge below 843°C (1550 F).
5. AISI L6 Tool Steel Heat Treatment
Heat steel L6 at a rate not exceeding 204°C (400°F) per hour (222°C per
hour) to 621-677°C (1150-1250°F) and equalize. Soak for 30 minutes for
the first inch (25.4 mm) of thickness, plus 15 minutes for each
additional inch (25.4 mm).
Quench L6 tool steel in oil to 66-51°C (150-125°F).
L6 steels immediately after quenching. Hold at temperature for 1 hour
per inch (25.4 mm) of thickness when tempering at 204°C (400°F), 4 hours
minimum, then air cool to ambient temperature.
However, where increased toughness is desired, at a sacrifice of some hardness, higher tempering temperatures are often used.
AISI L6 steel does not become brittle, as many other die steels do, when tempered in the range of 232°C to 426°C (450 to 800°F).
minimize the possibility of cracking, the steel should be tempered
immediately after hardening and should be heated slowly to the desired
Annealing of steel L6 must be performed after hot working and before re-hardening.
to 760°C (1400°F) and hold one hour per inch of maximum thickness. Then
cool slowly with the furnace at a rate not exceeding 28°C per hour(50°F
per hour) to 538°C (1000°F). Continue cooling to ambient temperature in
the furnace or in air.
For improved machinability, hold at 760°C
(1400°F) for 1 hour per inch (25.4mm) of maximum thickness; 2 hours
minimum. Then cool slowly with the furnace cool from 677°C (1250°F) to
760°C (1400°F), hold for 8 hours, then air cool to ambient temperature.
Because of its air-hardening ability, steel L6 should not be normalized.
6. Machinability of Steel L6
of tool steel L6 is very good. It rates 90% of the machinability of the
W-group water hardening low alloy steels rated 100% as a baseline.
7. Applications of ASTM A681 L6 Tool Steel
L6 cold working tool steel is for general purpose tools and dies where
greater toughness is required, but with some sacrifice of
Typically used below applications:
blanking and forming dies,
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Super Missile Weld is a filler material that is like and used by a lot of fabricators and welders. One of the things people like about it is how the final weld turns out. You generally get nice looking beads with this filler.
What a lot of welders and fabricators don’t know, is that “Super Missile Weld” is actually just a fancy name for 312 Stainless Steel. So, when you weld with Stainless Steel, you also need to remember about purging the backside of your weld if it is a critical part. If it is a static part, where 100% strength is not needed, you will likely be okay.
So lets test it out and see what kind of results we can get.
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Like a cassette stove, I tried to make a small rocket stove with a portable property that it is easy to ignite and extinguish and can be easily used outdoors regardless of the season.
It was not exaggeration of the moment of bliss, but I wanted to taste a certain amount of enjoyment, such as brewing coffee in the garden or steaming the potatoes · I made it small.
* Combustion version will be uploaded at a later date.
· Of course, in emergencies it will be of great help as a thermal energy source.
* Naming taken from the appearance like a fire hydrant: Please see how to make fire man.
* Combustion → Extinguishment → Movie of cleanup is planned to be up soon.
* Twig shoot bamboo is fuel (energy) = small diameter:
I think that you can pick up a number of Shinkotake and twigs in the surrounding forests and dry it, and enjoy using it as a fuel to boil water or cook easily.
· It is ideal that it keeps burning in the time according to the necessity with the smallest possible flame (it is unexpected that it will be used for a long time by burning fire gun).
* Easy way of making:
Just connect the water pipe to the “T” with a fitting and the rocket stove prototype is completed.
Next, fill the holes above and below the large coffee cans, insert the insulation through the tubes and close them with heat resistant putty.
Drilling the lid and the ash receiver etc into empty cans work.
* Measures against wind, Extinguishing with water → Easy cleanup:
Most of the rocket stove seems to have little consideration for fire fighting, but when you actually use it, you will feel “uneasy about the wind that builds up during burning”, ” Handling of heat “may take time and may be troublesome.
However, since the rocket stoves using water pipes can be extinguished easily by putting in water, it is also possible to cool the heat promptly.
In addition, burning residue is discharged together with water.
· Measures to strengthen the wind:
When the wind is strengthened during burning, it is possible to seal the rocket stove (although there is a word) by closing the mouth of each pipe exactly with empty cans.
* High material cost? :
Steel pipes that are also used for water pipes are thick, so they are no problem for quenching with water, and they will not last for 10 years and 20 years without worry of pain due to high temperature or corrosion due to rust.
· “Lid / ash receiver” made from empty cans is regarded as “consumable material”, and it is made on the premise that it will be damaged by using it.
Thank you for your viewing for a long time.
It would be greatly appreciated if you could make a rocket stove of everyone and serve as a relaxing time with a rocket stove.
Creative silver studio Otanko Nasu!