16MnCr5

16MnCr5 is a steel grade introduced from Germany, equivalent to China's 16CrMnH steel (refer to GB/T 5216-2004). It boasts good hardenability and machinability, allowing for high surface hardness and wear resistance in larger cross-section parts after heat treatment, as well as high low-temperature impact toughness. 16MnCr5 gear steel, after carburizing and quenching, is primarily used for manufacturing gears, worm gears, sealing shaft sleeves, and other components.

16MnCr5

Standard: EN 10084-1998

European Standard 1.7131

German Standard 16MnCr5

Basic Information 16MnCr5 Gear Steel

Standard: EN 10084-1998

European Standard: 1.7131

German Standard: 16MnCr5

16MnCr5 Properties and Application Range:

Chemical Composition

Carbon C: 0.14～0.19

Silicon (Si): ≤0.40

Manganese (Mn): 1.00～1.30

Sulfur (S): ≤0.035

Phosphorus (P): ≤0.035

Chromium (Cr): 0.80～1.10 [1]

Steel mill stock specifications

Hot-rolled round steel

　　Ф100-200

　　16mncr5

Hot-rolled round steel

　　Ф20-100

　　16mncr5

Hot-rolled round steel

　　Ф200-400

　　16mncr5

Mechanical properties

Tensile Strength σb (MPa): 880-1180

Condition Yield Strength σ0.2 (MPa): 635

δ5 (%): 9

Section shrinkage rate ψ (%): 35

Impact toughness value αku (J/cm2): 34

Hardness: ≤297HB

Sample Size: Certain Sample

16MnCr5 Heat Treatment Specifications and Microstructure

Heat Treatment Specification: 900℃ oil quench + 870℃ oil quench, 200℃ tempering.

Microstructure: Tempered Martensite.

Applications: Gear manufacturing, worm gears, plastic molds, steam turbine oil seals, and gasoline sleeves, etc.