34CrNiMo6 Alloy Steel/1.6582 steel
Description
34CrNiMo6 Alloy Steel is a quenching and tempering steel with high strength, high toughness, and good hardenability. A heat treatable, low alloy steel containing nickel, chromium, and molybdenum as per DIN Germany standard. 34CrNiMo6/1.6582 Alloy Steel is widely used in heavy-duty Shafts, Gears, Axles, Spindles, Couplings, Pins, etc.
The 34CrNiMo6 Alloy Steel can be induction hardened and it is weldable under certain conditions. Through hardenability to appr. 100 mm diameter bar with oil quenching.
34CrNiMo6 Alloy Steel Chemical composition
| National Standard | Grade | C% | Si% | Mn% | Cr% | Mo% | Ni% | P% | S% |
| DIN | 34CrNiMo6 | 0.30-0.38 | ≤0.4 | 0.5-0.8 | 0.9-1.2 | 0.15-0.3 | 1.3-1.7 | ≤0.025 | ≤0.035 |
Equivalents steel grades properties
| National Standard | Grade | C% | Si% | Mn% | Cr% | Mo% | Ni% | P% | S% |
| AISI/SAE | 4340 | 0.38-0.43 | 0.15-0.35 | 0.6-0.8 | 0.7-0.9 | 0.15-0.25 | 1.65-2.0 | ≤0.035 | ≤0.04 |
| JIS | SNCM447 | 0.36-0.43 | 0.15-0.35 | 0.6-0.9 | 0.6-1.0 | 0.15-0.3 | 1.6-2.0 | ≤0.035 | ≤0.04 |
| GB | 40CrNiMoA | 0.37-0.44 | 0.17-0.37 | 0.5-0.8 | 0.6-0.9 | 0.15-0.25 | 1.25-1.65 | ≤0.025 | ≤0.025 |
| BS | EN24 | 0.36-0.43 | 0.1-0.35 | 0.45-0.7 | 1.0-1.4 | 0.2-0.35 | 1.3-1.7 | ≤0.035 | ≤0.035 |
34CrNiMo6 / 1.6582 Steel Mechanical Properties
| Diameter (mm) |
< 16 | 16~ 40 | 40~100 | 100~160 | 160 ~250 |
| Thickness t (mm) | < 8 | 8~20 | 20~60 | 60~100 | 100~160 |
| Tensile strength Rm (N/mm2) | 1200 – 1400 | 1100 – 1300 | 1000 – 1200 | 900 – 1100 | 800 – 950 |
| Elongation A (%) | 9 min | 10 Min | 11 Min | Min 12 | 13 Min |
| Reduction of area Z (%) | 40Min | 45 Min | 50Min | 55Min | 55MIn |
| Toughness CVN (J) | 35Min | 45Min | 45Min | 45Min | 45 Min |
| Yield strength Re (N/mm²) | 1000 Min | 900 Min | 800 Min | 700 Min | 600 Min |
Heat Treatment
Normalizing For 34CrNiMo6 Steel
1.Nominal normalizing temperature:840-900°C
2.Hold the temperature for several hours
3.Cooling in the air
Annealing For 34CrNiMo6 Steel
1.Nominal Annealing temperature:800-860°C
2.Cool slowly in the furnace
3.Maximum Brinell hardness of 270
Hardening and Tempering(QT) For 34CrNiMo6 Steel
1.Nominal Hardening temperature:830-865°C
2.Hold at this temperature then quench in oil
3.Tempering as soon as possible when the temperature low to ambient temperature
4.Heat the steel carefully to a suitable temperature selected by reference to a tempering chart or table
5.The usual tempering temperature is 600°C which depending on the actual requirements
6..keep the material out of the furnace, then cool in the air
Application
34CrNiMo6/1.6582 Alloy Steel is widely used in heavy-duty Shafts, Gears, Axles, Spindles, Couplings, Pins etc. Used for large axles, machine components, tools, and high strength fasteners.
Contact
If you have any 34CrNiMo6 Alloy Steel inquiries and questions for Price, Application, hot treatment, Please don’t hesitate to contact us.
Email: Jack@otaisteel.com
Tel: +86-769- 23190193
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