16MnCr5 hot rolled steel round bars

16MnCr5 steel are alloyed case hardening engineering steels for parts which require core tensile strength of 800 – 1100 N/mm² and good wearing resistance. It is an engineering material typically used to manufacture piston bolts, camshafts, levers and other vehicle and mechanical engineering components.
EN 1.7131 steel (16MnCr5 material) is an European standard carburized steel (case hardening steel) with good hardenability and machinability. For larger cross-section parts, high surface hardness and wear resistance can be obtained after heat treatment, and low-temperature impact toughness is also high. For specification and datasheet, please see the tables below.
16MnCr5 steel is generally used after carburizing and quenching, and is mainly used for manufacturing gears, worms, sealing bushings and other components.

The following table shows chemical composition of 16MnCr5 material (1.7131 steel).

		Chemical Composition %
Standard	Steel Name (Steel Number)	C	Si ≤	Mn	P ≤	S	Cr
EN 10084	16MnCr5 (1.7131)	0.14-0.19	0.40	1.00-1.30	0.025	≤ 0.035	0.80-1.10

 

Mechanical Properties of 1.7131 Steel (16MnCr5 Material)

1.7131 material, 16MnCr5 steel Brinell hardness

• Soft annealed: ≤ 207 HBW
• Treated to hardness: 156-207 HBW
• Treated to ferrite-pearlite structure and hardness: 140-187 HBW
• Normalized: 138-187 HBW

EN 1.7131, 16MnCr5 Tensile strength (after hardening and tempering at 200 °C)

• Dia. ≤ 16mm: Min. 1000 MPa
• 16 < Dia. ≤ 40mm: Min. 800 Mpa
• 40 < Dia. ≤ 100mm: Min. 600 Mpa

Heat Treatment Specification of 16MnCr5 (1.7131 Steel)

• End quench test Austenitizing temperature: 870℃ (30-35 minutes)
• Carburizing temperature: 880-980 ℃
• Core-hardening temperature: 860-900 ℃
• Case-hardening temperature: 780-820 ℃
• Tempering: 150 – 200 ℃ (≥ 1 hour)