SNB16

Alloy Steel

SNB16

JIS steel grade SNB16

Chemical Composition (%)

C0.25
CR0.5
MO0.15
P0.03
S0.03

Applications

Japanese Industrial Standard steel grade per JIS specification.

Available Forms

Bar, plate, sheet, tube, forgings, strip, wire

Uses

Low-alloy engineering steel with enhanced hardenability and strength from alloying elements. Chromium (≈0.85%) improves hardenability, wear and corrosion resistance. Molybdenum (≈0.275%) raises high-temperature strength and prevents temper embrittlement. Applied to gears, shafts, bolts, connecting rods, pressure parts and heavy forgings in automotive, energy and machinery sectors.

Heat Treatment

Austenitize at 820–870 °C (oil or water quench depending on section) and temper at 400–650 °C to the required strength/toughness balance.

Precautions

Preheat and control interpass temperature when welding; post-weld heat treatment or stress relief is recommended to avoid hard-zone cracking. Use low-hydrogen electrodes. Protect from decarburization during heating (controlled atmosphere or protective coating).

Request a Quote Back to category

Comments 0