16MnCr5 Carbon Steel Bars – High-Strength Case Hardening Alloy Steel Rods

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 PRODUCT SPECIFICATION

16MnCr5 carbon steel bars are low-alloy case hardening steels, widely used in engineering and mechanical components where high surface hardness and core toughness are required. The steel grade 16MnCr5 (1.7131) offers a good balance of machinability, strength, and wear resistance after heat treatment processes such as carburizing and quenching.

These bars are manufactured to strict dimensional tolerances and surface finish standards, available in various shapes including round bars, flat bars, and square bars. They comply with EN 10084 standards and are ideal for further machining, forging, or hardening.

PRODUCT FEATURES

• Grade: 16MnCr5 / 1.7131

• Standard: EN 10084

• Heat treatable (Carburizing, Hardening, Tempering)

• High fatigue strength and surface hardness

• Excellent machinability in annealed condition

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 PRODUCT SHOW

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 CHEMICAL COMPOSITION OF 16MNCR5

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

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 MECHANICAL PROPERTIES OF 16MNCR5

Tensile strength σb (MPa): 880-1180

Conditional yield strength σ0.2 (MPa): 1187

Elongation δ5 (%): 9

Sectional shrinkage ψ (%): 57

Impact toughness αku (J/cm2): 34

Hardness: ≤297HB

Specimen size: a certain specimen

16MnCr5 heat treatment specification and metallographic structure:

Heat treatment specification: 900℃ oil quenching + 870℃ oil quenching, 200℃ tempering.

Metallographic structure: tempered martensite.