20CrMnTi gear steel
OTAI SPECIAL STEEL is a 20CrMnTi gear steel stockist and supplier from China. more than 25 years of experience in 20CrMnTi steel round bar, flat bar, and plate supply.
20CrMnTi steel is a low-alloy case hardening steel widely used in the automotive and machinery industries for producing components that require a hard, wear-resistant surface and a tough, impact-resistant core. According to the Chinese standard GB/T 3077, it contains chromium, manganese, and titanium to improve hardenability and toughness.
Thanks to its excellent carburizing properties, 20CrMnTi gear steel is one of the most popular materials for transmission systems, gear shafts, and high-load mechanical parts.
20CrMnTi gear steel properties are as follows:
Form of Supply
20CrMnTi gear 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 | 0.17 – 0.23% |
| Si | 0.17 – 0.37% |
| Mn | 0.80 – 1.10% |
| Cr | 1.00 – 1.30% |
| Ti | 0.04 – 0.10% |
| P | ≤ 0.035% |
| S | ≤ 0.035% |
Mechanical Properties (After heat treatment)
The mechanical properties of 20CrMnTi gear steel are outlined in the following table.
| Property | Value Range |
|---|---|
| Tensile Strength (Rm) | 980 – 1180 MPa |
| Yield Strength (Rp0.2) | ≥ 785 MPa |
| Elongation (A5) | ≥ 10% |
| Impact Toughness (AKV) | ≥ 63 J |
| Hardness (Core) | 30 – 45 HRC |
| Hardness (Surface after carburizing) | 58 – 62 HRC |
20CrMnTi Heat Treatment Process
| Process | Temperature Range | Cooling Method |
|---|---|---|
| Normalizing | 880 – 900°C | Air cooling |
| Carburizing | 880 – 940°C | Oil quenching after soak |
| Hardening | 780 – 820°C | Oil quenching |
| Tempering | 150 – 200°C | Air cooling |
Applications of 20CrMnTi Steel
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20CrMnTi steel for automotive gears
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Gear shafts and pinions
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Industrial gearboxes
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Heavy machinery transmission components
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High-load sprockets and chain wheels
20CrMnTi Steel Inventory Table
| Thickness (mm) | Width (mm) | Length (m) |
|---|---|---|
| 18 | 2200 | ≈10 |
| 20 | 2200 | ≈10 |
| 22 | 2200 | ≈10 |
| 25 | 2200 | ≈10 |
| 28 | 2200 | ≈10 |
| 30 | 2200 | ≈10 |
| 35 | 2200 | ≈10 |
| 40 | 2200 | ≈10 |
| 45 | 2200 | ≈10 |
| 50 | 2200 | ≈10 |
| 50 | 2200 | ≈10 |
| 60 | 2200 | ≈10 |
| 65 | 2200 | ≈10 |
| 70 | 2200 | ≈10 |
| 75 | 2200 | ≈10 |
| 80 | 2200 | ≈10 |
Contact our experienced sales team to help you with your 20CrMnTi gear steel questions and inquiries by Email or Telephone. The questions will be replied to in 24 hours.
Email: jack@otaisteel.com
Tel: +86-769-23190193
Fax: +86-769-88705839