Case Hardening Steels : 5919

Main Characteristic

5919 is a low alloy steel which contains low carbon. Suitable for carburizing by content of chromium
and nickle help increase hardness at surface to 58-62 HRC. Hardness is in deeper level also can give us
high strength even at minius temperature. At high temperature , it still can maintain high strength and
well stand for wear and torque as well as impact force. Hardness after carburizing is about 27-38 HRC
and it's good for forging with welding ability.

OutStanding Properties

  High Toughness
  High ductility and bending is possible
  High Torque
  Well resistance to fatigue
  Well resistance to abrasive when do carburizing
  Well forgability
  Easy to machine
  Welding ability is good
  Can do deep surface hardening
  High performance in hardening.


5919 is popular among machinery parts which require fatigue and abrasive during its task such as rear gear,
enginegear, especially drive gear or high torque gear. Transmission shaft, chain bolt and impact bearing
also require this materials.

Chemical Composition
ส่วนผสมทาง เคมี (%wt.)
สภาพจําหน่าย Selling Condition
สภาพหลังชุบ After Quenching
C Si Mn Ni Cr S
0.12-0.17 0.10-0.40 0.60-0.90 1.20-1.50 0.90-1.20 0.02-0.04
SNC 415
1.5919 / 15CrNi6
อบอ่อน ความแข็ง ≤ 207 HB
ชุบคาร์บูไรซิงค์ 58-62 HRC
5919 คุณสมบัติทั่วไป (General Characteristic)