Standard

Name

AISI/SAE

5115/5117

ASTM

ASTM A29/A322M, Grade 5115

DIN

16MnCr5, 1.7131

EN

EN 10084, 16MnCr5

Element

Percentage

Carbon (C)

0.14 – 0.19

Silicon (Si)

0.15 – 0.40

Manganese (Mn)

0.60 – 1.50

Phosphorus (P)

0.025 (max)

Sulfur (S)

0.035 (max)

Chromium (Cr)

0.80 – 1.10

Nickel (Ni)

0.30 (max)

Heat Treatment Process

Temperature Range (°C)

Annealing

680-710

Normalizing

840-870

Hardening

Carburizing: 880-980

Case Hardening: 780-820

Core hardening: 860-980 water, oil or thermal bath quenching

Tempering

150-400