Product Details:
Type | Tool Steel Bar |
Usage/Application | Industrial |
Alloy | With Alloy |
Shape | Flats |
Single Piece Length | 3-6 meter |
Material | Steel |
Density | 7.7 x 1000 kg/m3 |
Melting Point | 1421 degree C |
D2 steel is an air hardening, high-carbon, high-chromium tool steel. It has high wear and abrasion resistant properties. It is heat treatable and will offer a hardness in the range 55-62 HRC, and is machinable in the annealed condition. D2 steel shows little distortion on correct hardening. D2 steel’s high chromium content gives it mild corrosion resisting properties in the hardened condition.Cold-work tool steels include the high-carbon, high-chromium steels or group D steels. These steels are designated as group D steels and consist of D2, D3, D4, D5, and D7 steels. These steels contain 1.5 to 2.35% of carbon and 12% of chromium. Except type D3 steel, all the other group D steels include 1% Mo and are air hardened. Type D3 steel is oil-quenched; though small sections can be gas quenched after austenitization using vacuum.
Equivalent materials to D2 tool steels are:
Element | Min | Max |
---|---|---|
Carbon, C | 1.55 | 1.75 |
Manganese, Mn | 0.20 | 0.40 |
Silicon, Si | 0.25 | 0.40 |
Molybdenum, Mo | 0.50 | 0.70 |
Chromium,Cr | 11.00 | 12.00 |
W | 0.40 | 0.60 |
Vanadium, V | 0.10 | 0.50 |
Co | -- | -- |
Mechanical Properties | Metric | Imperial |
---|---|---|
Hardness, Knoop (converted from Rockwell C hardness) | 769 | 769 |
Hardness, Rockwell C | 62 | 62 |
Hardness, Vickers | 748 | 748 |
Izod impact unnotched | 77.0 J | 56.8 ft-lb |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Elastic modulus | 190-210 GPa | 27557-30457 ksi |
Properties | Conditions | ||
---|---|---|---|
T (°C) | Treatment | ||
Thermal expansion | 10.4 x 10 -6 /ºC | 20-100 | - |
Product Details:
Usage/Application | Industrial |
Alloy | With Alloy |
Shape | Round |
Technique | Hot Rolled |
Material | Steel |
Standard | AISI 52100 |
Alloy steels contain different varieties of steels that exceed the composition limits of Mn, C, Mo, Si, Ni, Va, and B set for carbon steels.
Fabrication and Heat Treatment Machinability:
Element | Min | Max |
---|---|---|
Carbon, C | 0.90 | 1.20 |
Manganese, Mn | 0.30 | 0.75 |
Silicon, Si | 0.10 | 0.35 |
Nickel, Ni | -- | -- |
Molybdenum, Mo | -- | -- |
Chromium,Cr | 1.00 | 1.06 |
Sulfur, S | -.-- | 0.05 |
Phosphorous, P | -.-- | 0.05 |
Properties | Metric | Imperial |
---|---|---|
Density | 7.81 g/cm 3 | 0.282 lb/in³ |
Melting point | 1424°C | 2595°F |
Properties | Metric | Imperial |
---|---|---|
Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
Elastic modulus | 190-210 GPa | 27557-30458 ksi |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Hardness, Brinell | - | - |
Hardness, Knoop (converted from Rockwell C hardness) | 875 | 875 |
Hardness, Rockwell C (quenched in oil from 150°C tempered) | 62 | 62 |
Hardness, Rockwell C (quenched in water from 150°C tempered) | 64 | 64 |
Hardness, Rockwell C (quenched in oil) | 64 | 64 |
Hardness, Rockwell C (quenched in water) | 66 | 66 |
Properties | Metric | Imperial |
---|---|---|
Thermal expansion co-efficient (@ 23-280°C/73.4- 36°F, annealed) | 11.9 µm/m°C | 6.61 µin/in°F |
Thermal conductivity (typical steel) | 46.6 W/mK | 323 BTU in/hr.ft².°F |
Product Details:
Usage/Application | Industrial |
Alloy | With Alloy |
Shape | Round |
Technique | Hot Rolled |
Material | Steel |
Density | 8670Kg/M3 |
Single Piece Length | 3-6 meter |
Product Details:
Usage/Application | Industrial |
Alloy | With Alloy |
Shape | Round |
Product Type | Tool Steel Bar |
Diameter | 2 inch |
Material | Steel |
Length | 3-6 meter |
Cold work tool steels are employed for the manufacture of tools for applications involving surface temperatures below 200°C. In this temperature range, the steel must feature the following properties in order to guarantee tool resistance to the high stresses arising from the numerous machining and shaping procedures.
Product Details:
Production Description:
Decarburization:
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Specific Gravity | 7.40 |
---|---|
Density | 0.2700 lb/in³ |
Mean CTE | |
70 to 400°F | 6.13 x 10-6 in/in/°F |
70 to 600°F | 6.48 x 10-6 in/in/°F |
Modulus of Elasticity (E) | 31.0 x 103 ksi |
Alloy Mechanical Property Making | Normal Diameter, in. | Full-Size Tests | Rock well Hardness | Machined Specimen Tests | |||
---|---|---|---|---|---|---|---|
Tensile Strength ksi | Yield Strength ksi | Tensile Strength ksi | Yield Strength ksi | Elongation in 4D, % | |||
F593G | 1/4 to 5/8 inch. | 100 - 150 | 65 | B95 to C32 | 95 | 60 | 20 |
Product Details:
Type | Tool Steel Bar |
Usage/Application | Industrial |
Material Grade | M2 Tool Steel |
Alloy | With Alloy |
Shape | Flats |
Single Piece Length | 3-6 meter |
Metric Density | 8.16 g/cm3 |
Imperial Density | 0.294 lb/in3 |
Melting Point | 4680 degree C |
Other designations that are equivalent to M2 molybdenum high speed tool steels include:
Chemical Composition:
Element | Min | Max |
---|---|---|
Carbon, C | 0.80 | 0.90 |
Manganese, Mn | -.-- | 0.40 |
Silicon, Si | -.-- | 0.40 |
Molybdenum, Mo | 4.50 | 5.50 |
Chromium,Cr | 3.80 | 4.50 |
W | 5.50 | 6.70 |
V | 1.60 | 2.20 |
The mechanical properties of M2 molybdenum high speed tool steel are tabulated below:
Mechanical properties | Metric | Imperial |
---|---|---|
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 |
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 |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Elastic modulus | 190-210 GPa | 27557-30458 ksi |
The following table shows the thermal properties of M2 molybdenum high speed tool steels:
Thermal properties | Metric | Impherial |
---|---|---|
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 |