Introduction to 16MnCr5 gear steel
1. Introduction to 16MnCr5 gear steel
16MnCr5 gear steel is used after carburizing and quenching. It is mainly used to manufacture gears, worm gears, seal sleeves and other parts. 16MnCr5 is a steel type introduced from Germany, which is equivalent to my country's 16CrMnH steel (refer to GB/T5216-2004). It has good hardenability and machinability. For parts with larger cross-sections, higher surface hardness and resistance can be obtained after heat treatment. Abrasion resistance and low temperature impact toughness are also high.
European standard: 1.7131
German standard: 16MnCr5
2. Smelting analysis of chemical composition of 16MnCr5 steel plate
Carbon C: 0.14～0.19
Silicon Si: ≤0.40
Manganese Mn: 1.00～1.30
Sulfur S: 0.010～0.035
Phosphorus P: ≤0.035
Chromium Cr: 0.80～1.10
3. Mechanical properties of 16MnCr5 steel plate
Tensile strength σb (MPa): 1373
Condition Yield strength σ0.2 (MPa): 1187
Elongation δ5 (%): 13
Section shrinkage ψ (%): 57
Impact toughness value αku (J/cm2): 72
Hardness: ≤297HB
Sample size: a certain sample
4. Heat treatment specifications and metallographic structure of 16MnCr5:
Heat treatment specifications: 900℃ oil quenching + 870℃ oil quenching, 200℃ tempering.
Metallographic structure: tempered martensite.
5. Use of 16MnCr5 steel plate: manufacturing gears, worms, plastic molds, turbine oil seals and gasoline sleeves, etc.
6. 16MnCr5 steel plate cutting:
Steel plate cutting refers to the process of using natural gas flame (oxygen-natural gas) to preheat the metal to be cut to the ignition point where it can burn violently, and then releasing a high-pressure oxygen flow to further violently oxidize the metal and blow away the slag produced by the combustion to form a cut. .
Steel plate cutting methods include flame cutting, laser cutting, wire cutting, shearing machine, plasma cutting, ultra-high pressure water cutting and other methods
Flame cutting equipment is low-cost and a cost-effective means of cutting thick sheet metal, but has its shortcomings when it comes to cutting thin sheets. Therefore, thick plates are generally cut by flame.
7. Flaw detection and thickness direction performance of 16MnCr5 steel plate:
It can produce additional flaw detection requirements and Z15-Z35 tear resistance (thickness direction performance) steel plates, and can also provide Z-direction performance steel plates according to ASTM, A770 and other standards.
