Main features of MAS-1:(1) Tensile strength over 1,960 N/mm2
Diaphragms, Valves, Tire Mold Blades, Watch Parts, Printer Parts,Continuously Variable Transmissions for Automobiles, Precision Springs, and Other Parts Requiring High Reliability
COIL or SHEET less than 2000mm
This is the manufacturing range of coils and sheets we manufacture.
19.7 W/(m・K) (25℃)
The table below shows the mechanical properties of the annealed finish and full hardened finish of MAS-1.
Even with annealed finish, it has hardness of 290-340 HV, so it can't be processed like general soft materials.
(1) Solution Heat Treatment
Standard solution heat treatment condition is ［820-870°C x several minutes to 30 minutes, then cooling］.
(2) Age Hardening Heat Treatment
MAS-1 is a steel grade that can be artificially age hardened
Standard age hardening heat treatment condition is ［480℃×3 hours］ but it is possible to change combinations of temperature and time.
Fig.a below shows mechanical properties resulting from age hardening treatment and cold rolling. Fig.b below shows the effect of age hardening conditions on tensile strength.
(3) Heat Treatment Atmosphere
Hydrogen or AX gas is appropriate for atmosphere gas in heat treatment.
It is often considered to be a rust-resistant material like stainless steels because it a high-alloy steel, but it does not contain Cr which is an anti-rust component, so it requires rust-preventive measures according to general steels.
Materials based on Ni, Co, and Ti are superior to stainless steel in terms of corrosion resistance and heat resistance. In addition to cold-rolled strips manufactured by our company, we also provide thick plates, wires, bars, and ultra-thin pipes sourced from domestic and overseas partner companies for you.
This materials are possible to increase their hardness by rolling, they can be used as spring parts.
"TOKKIN's uniquely designed production method for JIN™ brings you a material that combines high strength and excellent workability that cannot be obtained with ordinary manufacturing methods. The balance of Yield stress (YS) exceeds 35,000 MPa x Elongation (EL) is among the highest in the world."