A Public Sector Enterprise

CIN L14292TG1973GOI001660

Special Steel

  • Martensitic Steels
  • High Strength Special Steel
  • Austennitic Steels
  • Percipitation Hardening Steels

       These special steels have improved mechanical properties and better workability which are essential for special applications in aerospace,power generation,nuclear,defence,cryogenic and other general engineering industries. These include precipitation hardening steels, non-magnetic austenitic and martensitic stainless steels.

Grade Uns.No Conformity to international specification known near equivalent Product Characteristics Applications Max Service Temperature
MDN 174 S 17400 ASTM A 564-TYPE 630 Alloy 17-4 PH

A precipitation hardening steel offering good corrosion resistance with high strength and hardness Used in application demanding high corrosion resistance upto 300° C

Nuclear power plants, nozzles for nylon fiber compressor parts 315° C
MDN 904 N 08094 ASTM B 625,B 649 AVESTA 904L

Used under severe corrissive conditions

Distillation columns, reaction vessels, pipes and tanks --
MDN 15-5PH S 15500 ASTM A 567 Alloy 15-5 PH

High strength,good corrosion resistance,good mechanical properties properties up to 600° C (316° C),good toughness

Aerospace, chemical, petro chemical, food processing, paper and general metal working industries. 350° C
MDN 11-10PH -- -- Alloy 11-10 PH

High Strength,Toughness and Stress Corrosion Cracking resistance

Structural application in Aerospace industry 400° C