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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 No. Uns. No. Conformity To International Specification Known Equivalent Max Service Temperature
MDN 174 S 17400 ASTM A 564-TYPE 630 Alloy 17-4 PH 315° C
MDN 904 N 08094 ASTM  B 625,B 649 AVESTA 904L --
MDN 15-5PH S 15500 ASTM A 567 Alloy 15-5 PH 350° C
MDN 11-10PH - - Alloy 11-10 PH 400° C

MDN 174 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
MDN 904 L Used under severe corrissive conditions Distillation columns, reaction vessels, pipes and tanks
MDN 11-10PH High Strength,Toughness and Stress Corrosion Cracking resistance Structural application in Aerospace industry
MDN 15-5PH 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.

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Last Updated and Reviewed on 17-07-2019

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