Structural Steel
EN 1.0038 Equiv. The most general steel grade.
Widely used as it has strength and high machinability and is low price.
EN 1.0038 Equiv.
Annealed Material
EN 1.0038 Equiv. is annealed to relieve its internal stress.
It is effective for prevention of warp by machining.
Carbon Steel
EN 1.1206 Equiv. Carbon steel with adequate level of toughness and durability
EN 1.1203 (normalized) Equiv.
Normalized EN 1.1203 Equiv., which relieves its internal stress.
Added free-cutting elements enhance its machinability. It has higher mechanical strength than S50.
Chrome Molybdenum Steel EN 1.7220 Equiv. A chrome steel with a small amount of molybdenum. Increased temper softening resistance and higher
toughness.
Special Steel
JIS-SKS93 Carbon steel for oil hardening which excels in toughness and abrasion resistance.
EN 1.2510 Equiv. It has good machinability as spheroidizing annealing is applied.
Has higher hardenability and less heat-treating distortion than JIS-SKS93.
EN 1.2379 Equiv. Can be air or vacuum hardened due to its high hardenability.
Very little heat treat distortion and has high abrasion resistance.
DC 53 ® (Daido) Tougher than EN 1.2379 Equiv. Good machinability and grindability.
Hardness equal to EN 1.2379 Equiv. is obtained by low-temperature tempering, and hardness equal to 62HRC is obtained by high-temperature tempering.
EN 1.3343 Equiv. Excels in toughness and abrasion resistance. Very little heat-treatment distortion.