Big discounting M2 Tool Steel | 1.3343 | HS-6-5-2C| SKH51 Factory in Karachi
AISI M2 Tool Steel is molybdenum based high-speed steel in tungsten–molybdenum series. HSS grade steel M2 is a medium alloyed high speed steel which has good machinability. The H-SS M2 chemical composition gives a good combination of well-balanced toughness, wear resistance and red hardness properties. Widely used for cutting tools such as twist drills, taps, milling cutters, saws, knives etc. Also commonly used in cold work punches and dies and cutting applications involving high speed...
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is a medium alloyed high speed steel which has good machinability. The
H-SS M2 chemical composition gives a good combination of well-balanced
toughness, wear resistance and red hardness properties. Widely used for
cutting tools such as twist drills, taps, milling cutters, saws, knives
etc. Also commonly used in cold work punches and dies and cutting
applications involving high speed and light cuts.
Grade M2 High Speed Steel is by far the most popular high speed steel replacing high speed steel gradein most applications because of its superior properties and relative economy.
1. Common M2 Tool Steel Related Specifications and Equivalents
2. ASTM M2 Tool Steel Chemical Composition Properties
|M2 regular C||0.78||0.88||0.15||0.40||0.03||0.03||0.20||0.45||3.75||4.50||1.75||2.20||4.50||5.50||5.50||6.75|
|DIN ISO 4957||C||Mn||P||S||Si||Cr||V||Mo||W|
3. AISI HSS M2 Tool Steel Mechanical Properties
Physical Properties of HSS M2 Material
|Density||0.294 lb/in3 (8138 kg/m3)|
|Modulus of Elasticity||0.294 lb/in3 (8138 kg/m3)|
|Thermal conductivity||24 Btu/ft/hr/°F 41.5 W/m/°K|
|Machinability||65% of a 1% carbon steel|
AISI M2 Tool Steels Properties Mechanical
|Hardness, Rockwell C (tempered at 1150°F, quenched at 2200°F)||62||62|
|Hardness, Rockwell C (as hardened, quenched at 2200°F)||65||65|
|Compressive yield strength (when tempered at 300°F)||3250 MPa||471000 psi|
|Izod impact unnotched (when tempered at 300°F)||67 J||49.4 ft-lb|
|Abrasion (loss in mm3, as-hardened; ASTM G65)||25.8||25.8|
|Abrasion (loss in mm3, tempered at 1275°F; ASTM G65)||77.7||77.7|
|Elastic modulus||190-210 GPa||27557-30458 ksi|
M2 Steels Thermal Properties
|CTE, linear (@20.0 – 100°C/ 68.0 – 212°F)||10 μm/m°C||5.56 μin/in°F|
|CTE, linear (@20.0 – 500°C/68.0 – 932°F)||12.2 μm/m°C||6.78 μin/in°F|
|CTE, linear (@20.0 – 850°C/68.0 – 1560°F)||12.6 μm/m°C||7 μin/in°F|
4. Forging of AISI M2 High Speed Steel
heat M2 HSS steel slowly and uniformly to 850-900°C. The heat should
then be increased more quickly to the forging temperature of
1050-1150°C. If during the forging
the temperature of the M2 high speed tool steel material drops below
880-900°C, re-heating will be necessary. Cool the M2 steel component
very slowly after forging.
5. Heat Treatment of M2 Steel HSS
to 1600° F, soak thoroughly at heat. Furnace cool 25° F per hour to
900° F, air cool to room temperature. Approximate annealed hardness 241
Stress Relief of Unhardened Material: Heat slowly
to 1200 to 1250° F. Soak for two hours per inch of thickness at heat.
Slow cool (furnace cool if possible) to room temperature.
Preheat: Heat slowly to 1550° F, soak thoroughly, heat to 1850° F, soak thoroughly.
time in the furnace varies from a few minutes to a 15 minutes,
depending tool size, heat capacity of the furnace, and the size of the
charge. – Heat to 2150 to 2200° F for max. toughness and minimum
distortion. – Heat to 2250 to 2275° F for max. hardness and abrasion
hardness, oil quench to 150-200° F. Air quench to 150° F. When quenching
in hot salt maintain the quench just above the Ms temperature. After
equalizing withdraw parts from the hot salt and air cooled to 150° F.
temper is mandatory, three tempers are sometimes preferred. Soak for 2
hours per inch of thickness. Air cool to room temperature between
tempers. The best tempering range for hardness, strength and toughness
is 1000 to 1050° F.
|Temper° F||Rockwell “C”||Temper° F||Rockwell “C”|
6. Machinability of AISI M2 Tool Steel H-SS
of HSS M2 tool steels can be carried out using grinding methods.
However, they have poor grinding capability and hence they are regarded
as “medium” machinability tool steel under annealed conditions. The
machinability of these tool steels M2 is only 50% of that of the easily
machinable W group or water hardening tool steels.
7. M2 Tool Steel Applications
The main use of high-speed steels continues to be in the manufacture of various cutting tools.
applications for M2 high speed steel are twist drills, reamers,
broaching tools, taps, milling tools, metal saws. M2 is suitable for
cold forming tools such as extrusion rams and dies, also widely used in
all kinds of cutting tools, knife and punches and die applications,
plastic moulds with elevated wear resistance and screws.
SDT 13/16 quot; x 2 quot; Cutting Depth High Speed Steel Annular Cutter with 3/4..
For more details please visit: http://po.st/NlweOE Thank You!
SDT 13/16 quot x 2 quot Cutting Depth High Speed Steel Annular
Jinan Huabao machinery co., ltd
TEL: +86 531 58761725
FAX: +86 531 88022270
CELL: +86 15866605088
ADD:Rm707 Lianggu Building, No.6 Qilihe Road,Jinan,Shandong,China,250001
Contact: Mr. Brady
Great Innovation For Metallic Surface Superfinishing &
Provide Complex Problems Solutions
1. Obtain surface roughness less than Ra0.1 easily;
2. Suitable for different shapes, such as cylindrical, internal, rotor, curved and spherical, axis,etc;
3. Suitable for all kinds of materials, such as carbon steel, aluminum alloy, copper, etc;
4.Suitable for different industries, such as Turbine, Mining machinery, Mechanical valve, Petroleum Machinery, Bearing mechanical, Mold, Paper machinery, Pharmaceutical Machinery centrifuge, Piston rod, Hydraulic cylinder, Helical rod, Metallurgical Machinery, Wind power, Hydropower, Motor.
5.Can be used in all kinds of machine tools, such as lathe, grinding machine, boring machine, milling machine, planning machine, spherical lathe and CNC machine tools, ect;
6. Just one time, improve production efficiency greatly;
7. Components: tool assembly and control-center;
8. Improve the micro-hardness 20%;
9. Improve the wear-resistance;
10. Improve the fatigue life 5 ~100 times;
11. Suitable for the hardness below HRC65;
12. Improve corrosion resistance;
13. It’s a nonabrasive process, without abrasive, felt, lapping compounds and hard work.
14.Relieve the residual stress greatly;
15.Long service life of tool and workpieces;
16. It saves time, money and energy;
17. No sawdust and sawdust wastes occurred,no noise and damage to the environment;
18.Easy to operate.
According to metallic materials cold plastic deformation in the normal temperature and apply HB-superfinish equipment to superfinish the surface without any abrasive to reach desirable roughness,this process just like ironing clothes.
Firstly, make the workpiece pre-machining in the general purpose machine, then apply HB-super finishing equipment again, the roughness will reach less than Ra0.1 easily, just like ironing the clothes and a kind of compressive stress created on the surface at the same time, the micro-hardness will be improved more than 20%, the wear resistance will be improved greatly and the life will be improved 5 ~10 times.
This equipment including two parts, one is cutter, the other is control center,
the cutter is controlled by control center,
there is a unstable ball which made from a special materials on the cutter head,
during process, the ball impacts the surface 30,000 times per second with very little pressure about 2.5N,
the temperature is little higher than the normal temperature,
it’s a nonabrassive process, without abrasive, felt, lapping compounds and hardwork,
save time and cost greatly, and very environmental,
it’s very different from the rolling, polishing, grinding and other process,
more precisely, it just like ironing the clothes, never remove any materials from the surface.
Huabao machinery co., ltd
TEL: +86 531 58761725
FAX: +86 531 88022270
CELL: +86 15866605088
No.6 Qilihe Road,Jinan,Shandong,China,250001
Contact: Mr. Brady