Product Details:
Material Grade | H13 |
Single Piece Length | 3-6 meter |
Usage/Application | Industrial |
Shape | Round |
Size | 1-2 inch diameter |
Surface Finish | Polished |
Material | Steel |
Chromium hot-work tool steels are designated as group H steels according to the AISI classification system. This series of steels start from H1 to H19. The most commonly used chromium hot-work steels are H11, H12, and H13, which can be air hardened in 150 mm thick sections. The steels are subjected to minimal distortion during hardening due to their air-hardening and balanced alloy content. The tools produced from chromium hot-work steels can be cooled using water without damage as these steels have low carbon and alloy contents. This article will give an overview of H13 chromium hot-work steels, which contain strengthening agents such as vanadium and molybdenum. These steels are resistant to softening at elevated temperatures due to the presence of chromium content.
Other designations that are equivalent to H13 tool steels include:
Element | Min | Max |
---|---|---|
Carbon, C | 0.32 | 0.42 |
Manganese, Mn | 1.10 | 0.50 |
Silicon, Si | 0.80 | 1.20 |
Molybdenum, Mo | 1.00 | 1.50 |
Chromium,Cr | 4.50 | 5.50 |
W | -- | -- |
Vanadium, V | 0.80 | 1.20 |
Co | -- | -- |
The physical properties of H13 tool steels are given in the following table:
Properties | Metric | Imperial |
---|---|---|
Density (@20°C/68°F) | 7.80 g/cm 3 | 0.282 lb/in 3 |
Melting point | 1427°C | 2600°F |
The mechanical properties of H13 tool steels are tabulated below:
Properties | Metric | Imperial |
---|---|---|
Tensile strength, ultimate (@20°C/68°F, varies with heat treatment) | 1200 - 1590 MPa | 174000 - 231000 psi |
Tensile strength, yield (@20°C/68°F, varies with heat treatment) | 1000 - 1380 MPa | 145000 - 200000 psi |
Reduction of area (@20°C/68°F) | 0.5 | 0.5 |
Modulus of elasticity (@20°C/68°F) | 215 GPa | 31200 ksi |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
The following table shows the thermal properties of H13 tool steels:
Properties | Conditions | ||
---|---|---|---|
T (ºC) | Treatment | ||
Thermal expansion | 10.4 x 10 -6 /ºC | 20-100 | - |
Thermal conductivity | 28.6 W/mK | 215 | - |
Product Details:
Size | 2x2 inch,3x3 inch,etc |
Shape | Square |
Material | Steel |
Material Grade | H11 |
Single Piece Length | 3-6 meter |
Technique | Hot Rolled |
Usage/Application | Industrial |
Chromium hot-work tool steels are designated as group H steels according to the AISI classification system. This series of steels start from H1 to H19. The most commonly used chromium hot-work steels are H11, H12, and H13, which can be air hardened in 150 mm thick sections. The steels are subjected to minimal distortion during hardening due to their balanced alloy content. The tools produced from chromium hot-work steels can be cooled using water without damage as these steels have low carbon and alloy contents. This article will give an overview of H11 chromium hot-work steels, which have low carbon content and good toughness. These steels can be deep hardened by heat treatment and air-quenching.
Element | Min | Max |
---|---|---|
Carbon, C | 0.32 | 0.42 |
Manganese, Mn | -.-- | 0.50 |
Silicon, Si | 0.80 | 1.20 |
Molybdenum, Mo | 1.00 | 1.50 |
Chromium,Cr | 4.50 | 5.50 |
V | 0.30 | 0.50 |
Co | -- | -- |
The physical properties of H11 tool steels are given in the following table:
Properties | Metric | Imperial |
---|---|---|
Density | 7.81 g/cm 3 | 0.282 lb/in 3 |
Melting point | 1427°C | 2600°F |
The mechanical properties of H11 tool steels are tabulated below:
Properties | Metric | Imperial |
---|---|---|
Hardness, Rockwell C (air cooled from 982°C, 45 mins) | 52.5 | 52.5 |
Hardness, Rockwell C (air cooled from 1010°C, 45 mins) | 56 | 56 |
Hardness, Rockwell C (air cooled from 1038°C, 45 mins) | 57 | 57 |
Modulus of elasticity | 207 GPa | 30000 ksi |
Modulus of elasticity (@538°C/1000°F) | 159 GPa | 23000 ksi |
Modulus of elasticity (@204°C/400°F) | 190 GPa | 27500 ksi |
Charpy impact (V-notch; air cooled from 1010°C;535°C temper temperature) | 13.6 J | 10.0 ft-lb |
Charpy impact (V-notch; air cooled from 1010°C;650°C temper temperature) | 27.1 J | 20.0 ft-lb |
Charpy impact (V-notch; air cooled from 1010°C;370°C temper temperature) | 33.9 J | 25.0 ft-lb |
Machinability (1% carbon steel) | 75.0 - 80.0% | 75.0 - 80.0% |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
The following table shows the thermal properties of H11 tool steels:
Properties | Metric | Imperial |
---|---|---|
Thermal expansion (@20-100ºC/68-212ºF) | 11.9 x 10 -6 /ºC | 6.63 µin/in°F |
Thermal conductivity (@100ºC/212ºF) | 42.2 W/mK | 292.9 in/hr.ft².°F |
Other designations that are equivalent to H11 tool steels include:
AFNOR Z 38 CDV 5 | AMS 6485 | SAE J438 |
DIN 1.2343 | AMS 6487 | SAE J467 |
UNI KU | AMS 6488 | UNS T20811 |
JIS SKD6 | ASTM A681 | AISI 610 |
B.S. BH 11 | FED QQ-T-570 | ASTM A579 |
AMS 6437 | SAE J437 | MIL S-47262 |
Product Details:
Usage/Application | Industrial |
Shape | Rectangular |
Surface Finish | Polished |
Single Piece Length | 3-6 meter |
Technique | Hot Rolled |
Material | Steel |
Product Details:
Material Grade | H21 |
Usage/Application | Industrial |
Single Piece Length | 3-6 meter |
Thickness/Diameter | 1-2 inch |
Material | Steel |
Shape | Round |
Tungsten hot-work steels are of different types, namely, H21 to H26 types. These steels have similar characteristics to that of high-speed steels. The primary alloying elements in tungsten hot-work steels include tungsten, chromium, carbon, and vanadium. They are resistant to distortion when they are air-hardened, and have higher hardening temperature when compared to chromium hot-work steels. Breakage of the tungsten hot-work steels can be reduced if they are preheated to operating temperature before use. Thermal shock resistance and toughness of these steels can be improved by reducing the carbon content.
Other designations that are equivalent to AISI H21 tungsten hot-work tool steels include:
Element | Min | Max |
---|---|---|
Carbon, C | 0.25 | 035 |
Manganese, Mn | -.-- | 0.60 |
Silicon, Si | -.-- | 0.40 |
Molybdenum, Mo | -- | -- |
Chromium,Cr | 2.00 | 3.00 |
W | 9.00 | 10.00 |
V | 0.30 | 0.50 |
Co | -- | -- |
The physical properties of H21 tool steels are given in the following table:
Properties | Metric | Imperial |
---|---|---|
Density | 8.19 g/cm 3 | 0.296 lb/in 3 |
Melting point | 1432°C | 2610°F |
The mechanical properties of H21 tool steels are tabulated below:
Properties | Metric | Imperial |
---|---|---|
Hardness, Rockwell C | 40.0 - 55.0 | 40.0 - 55.0 |
Bulk modulus | 140 GPa | 20300 ksi |
Shear modulus | 80.0 GPa | 11600 ksi |
Poisson's ratio (25°C) | 0.27-0.30 | 0.27-0.30 |
Elastic modulus | 190-210 GPa | 27557-30458 ksi |
The following table shows the thermal properties of H21 tool steels:
Properties | Metric | Imperial |
---|---|---|
CTE, linear | 12.4 μm/m°C | 6.89 μin/in°F |
Thermal conductivity | 27.0 W/mK | 187 BTU-in/hr-ft 2 °F |
The following table shows the thermal properties of H21 tool steels:
Properties | Metric | Imperial |
---|---|---|
Processing temperature (tempering) | 595 - 675°C | 1100 - 1250°F |
Processing temperature (tempering) | 1095 - 1205°C | 2003 - 2201°F |
Annealing temperature (hardening) | 870 - 900°C | 1600 - 1650°F |
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