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34CrNiMo6 Steel is a typical high-strength alloy structural steel in the European standard. As a medium carbon alloy steel containing Molybdenum, Chromium and Nickel,it is considered to be one of the most popular steels in Europe.
In the quenched and tempered condition, the performance characteristics of 34CrNiMo6 steel can be maximized,that is, High Strength, High Toughness and Good Hardenability.This is why you will find this type of steel often used in high strength requirements in European countries.
Due to its excellent comprehensive mechanical properties,34CrNiMo6 steel is widely used in the manufacture of important parts such as train axles, mechanical main shaft parts, wind power shafts, engine camshafts and connecting rods,etc.
| Standard | Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| EN 10083 | 34CrNiMo6 /DIN 1.6582 | 0.30-0.38 | ≤0.4 | 0.5-0.8 | ≤0.025 | ≤0.035 | 1.3-1.7 | 0.15-0.30 | 1.3-1.7 |
| EN 10250 | 0.30-0.38 | ≤0.4 | 0.5-0.8 | ≤0.035 | ≤0.035 | 1.3-1.7 | 0.15-0.30 | 1.3-1.7 | |
| SEW 550 | 0.30-0.38 | ≤0.4 | 0.4-0.7 | ≤0.035 | ≤0.035 | 1.4-1.7 | 0.15-0.30 | 1.4-1.7 | |
| DIN 17200 | 0.30-0.38 | ≤0.4 | 0.4-0.7 | ≤0.035 | ≤0.03 | 1.4-1.7 | 0.15-0.30 | 1.4-1.7 |
Automatic intermediate frequency quenching production line
Conventional quenching and tempering production line
34CrNiMo6 Steel Mechanical property
| Size(mm) | Rm(Mpa) | Rel(Mpa) | A5(%) | Z(%) | Aku(J) |
| Φ60 | 1150 | 1060 | 17 | 62 | 92 |
| Φ200 | 930 | 825 | 21 | 56 | 85 |
| Φ350 | 900 | 780 | 17 | 62 | 100 |
| Φ430 | 825 | 650 | 17 | 55 | 86 |
| Φ575 | 785 | 590 | 20 | 50 | 80 |
Remark:The above data is the real test data of the laboratory, for your reference only
14-Channels Ultrasonic Testing
3-Channels Eddy Current Testing
Detection method of probe rotation,Detecting surface and near surface defects.
Detection diameter:Ф17mm~Ф80mm
Detection length:3-9m
Straightness:≤1.5mm/m
Detect applicable materials:High strength steel,Carbon tool steel,Carbon structural steel,Alloy structural steel,Tool steel,Spring steel,Bearing steel,High-speed steel,Stainless steel
Defect detection capability
The following comparative defects can be detected in the online state.
Center cross hole:Ф0.8x15mm
2mm horizontal hole under the skin:Ф0.5×12.7mm
Surface groove:depth x width x length 0.1×0.1x10mm