32NiCrMo14-5 structural steel
OTAI SPECIAL STEEL is 32NiCrMo14-5 structural steel stockholders and suppliers from china. more 25 years of experience in AISI A2 tool steel round bar, flat bar, and plate supply.
32NiCrMo14-5 structural steel is a typical alloy construction grade for heat treatment – hardening and tempering, which is characterized by very high mechanical properties, hardness, load resistance, and variable pressure. It is used i.e. in aviation as well as for components and particularly responsible components of machinery, equipment, and vehicles such as axles, couplings, shafts, levers, or connecting rods.
32NiCrMo14-5 steel properties are as below:
Form of Supply
32NiCrMo14-5 steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar and steel square block. Round bar can be sawn to your required lengths as one offs or multiple cut pieces. Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.
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- Round
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- sheet
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- Square
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- Plate
Chemical composition
| C(％) | 0.95～1.05 | Si(％) | 0.10～0.50 | Mn(％) | 0.40～1.00 | P(％) | ≤0.030 |
| S(％) | ≤0.040 | Cr(％) | 4.75～5.50 | Mo (％) | 0.90～1.40 | V(％) | 0.15～0.50 |
Mechanical Properties
The mechanical properties of 32NiCrMo14-5 steels are outlined in the following table.
| Bulk modulus (typical for steels) | Machinability (based on carbon tool steel) | Shear modulus | Poisson’s ratio | Elastic modulus) | Thermal expansion | |
| GPa | GPa | GPa | 20-100℃ | |||
| 140 | 65% | 78 | 0.27-0.30 | 190-210 | 10.7 x 10-6/ºC | |
Heat treatment Related
- Forged of 32NiCrMo14-5 Tool steel
Slowly heated the 32NiCrMo14-5 steel material to 650-680°C (1202-1256°F) before raising the temperature to 1050-1100°C (1922-2120°F) and soak 32NiCrMo14-5 tool steel material until uniformly heated. Initial hammer blows should be light due to the comparatively high hot strength of this steel.
The 32NiCrMo14-5 steel forged temperature should be maintained above 1000°C(1832℉) until it begins to yield. Final forged should not be done below 900°C(1652℉). Slowly cool after forged is essential to avoid the possibility of cracking.
- Annealing of 32NiCrMo14-5 Tool steel
Slowly heated 32NiCrMo14-5 steel to 850-870 ℃（1562-1598°F） and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace at a rate of 4°C (40°F) per hour or less.. The 32NiCrMo14-5 tool steel will get MAX 250 HB （Brinell hardness）.
- Hardening of 32NiCrMo14-5 tool steel
32NiCrMo14-5 steels should be heated uniformly to 790-820°C (1436-1508°F) until completely heated through. Then heated to the hardening temperature of 950-980°C(1742-1796℉), soak at the temperature enough time, let 32NiCrMo14-5 steel to be thoroughly heated .
Then withdraw 32NiCrMo14-5 steel tools from the furnace，either air cool or oil quench.
Tempering of 32NiCrMo14-5 steel
Tempering of 32NiCrMo14-5 steels is performed at 150-400°C (302-752°F), Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Get Rockwell C hardness of 57 to 62. Others different Heat treatment temperature will get different hardness. Below only for reference.
Temperature [℃] 150 200 250 300 350 400
Hardness [HRc] 62-61 61-60 60-59 59-58 58-57 58-57
Processing
32NiCrMo14-5 tool steel round bar and flat sections can be cut to your required sizes. Ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. 32NiCrMo14-5 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.
Contact our experienced sales team to help you with your 32NiCrMo14-5 steel questionsadn enquiry by Email or Telphone. The questions will be replied in 24 hours.
Email: jack@otaisteel.com
Tel: +86 769 2319 0193
Fax: +86 769 8870 5839