Description
16MnCr5 Grade Introduction:
16MnCr5 is an alloyed case-hardening steel known for its core tensile strength of 800-1100 N/mm² and excellent wear resistance. It is commonly used in the manufacturing of mechanical components like piston bolts, camshafts, and levers. 16MnCr5 is available in different shapes such as round, flat, and square steel bars.
16MnCr5 Applications:
DIN 16MnCr5 (1.7131) is widely used in applications requiring durable gearing, including:
- Valve bodies
- Pumps and fittings
- Gearings in rotating machinery
- Bolts, gears, internal combustion engine parts
- Railway vehicles, electric locomotives, tractors
- Mining machinery transmission shafts, rollers, and shafts
16MnCr5 Equivalent Grades:
- ASTM: A29/A29M
- DIN: EN 10083/3
- JIS: G4053
- DIN 17210
Additional Grades:
MS, EN1A, EN3B, EN8, EN9, EN24, EN31, EN32B, EN36C, 42CrMo4, HCHCR, D2, H-11, OHNS, M2, P20, SCM420, ASTM SA-105, SAE1018, 20MnCr5, C45, 55C8, S355J2G3.
16MnCr5 Chemical Composition:
| Element | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) |
|---|---|---|---|---|---|---|
| Content | 0.14-0.19 | ≤0.40 | 1.00-1.30 | ≤0.035 | ≤0.035 | 0.80-1.10 |
16MnCr5 Mechanical Properties:
| Property | Value |
|---|---|
| Tensile strength (MPa) | 520 |
| Yield strength (MPa) | 415 Min |
| Bulk modulus (GPa) | 140 |
| Shear modulus (GPa) | 80 |
| Poisson’s ratio | 0.27-0.30 |
| Thermal conductivity (W/mK) | 46.6 |
16MnCr5 Hardness:
| Condition | Min Hardness | Max Hardness |
|---|---|---|
| +S | 207 | |
| +A | 140 | 187 |
Heat Treatment Properties:
The heat treatment of 16MnCr5 involves precise control of temperature, heating and cooling rates, soaking times, and quenching mediums depending on the shape and size of the component.
- Hardening: Heat to 860-980°C, followed by quenching in oil, water, or a thermal bath.
- Tempering: Temper at 150-200°C.
Physical Properties of 16MnCr5:
| Property | Value | Unit |
|---|---|---|
| Thermal expansion | 10e-6/K | |
| Thermal conductivity | 25 W/mK | |
| Specific heat | 460 J/kg.K | |
| Melting temperature | 1450-1510°C | |
| Density | 7700 kg/m³ | |
| Resistivity | 0.55 Ohm.mm²/m |
Forging Properties:
Hot forming temperature: 1100-850°C.
Stress Relieving:
Stress relief temperature: 600-680°C.
Normalizing:
Normalization is carried out at 850-880°C.
Annealing:
Annealing involves heating to 650-700°C, followed by slow cooling.
Density:
16MnCr5 has a density of 7800 kg/m³.
Machinability:
This grade exhibits good machinability in the soft-annealed condition.
Welding:
Although 16MnCr5 offers satisfactory weldability, cracks may form along welds. Therefore, caution should be exercised when welding.
Supply Cities:
Mumbai Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Visakhapatnam, Kochi, Kerala, Hubli-Dharwad, Karnataka, Ghaziabad Kolkata.
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