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


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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