Grades table

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General engineering steels
  • Steels for carburizing
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    A&D Grade Specifications Chemical Composition Mechanical properties
    European standard USA Common designation C Ni Cr Mo Heat
    treatment
    UTS
    (N/mm²)
    0,2% YS
    (N/mm²)
    A
    (%)
    FADCW 10NiCrMo13‑5 UNS: G93106
    AISI: 9310
      0.10 3.25 1.20 0.10 T + F + Rv 150°C 1150 900 14
    FADH 14NiCrMo13‑4 UNS: K43214   0.16 3.20 1.00 0.25 T + F + Rv 150°C 1350 1000 14
    FDG 20NiCrMo13‑4 UNS: K41910   0.20 3.20 1.00 0.50
    T + F + Rv 150°C
    Tgas + F + Rv 150°C
    1450
    1350
    1100
    1000
    13
    13
    FND 15NiMoSiCr10 UNS: K51570   0.15 2.50 1.00 2.00
    T + F + Rv 300°C
    Tgas + F + Rv 300°C
    1400
    1350
    1120
    1030
    13
    13
    NCAV 12NiCr12     0.12 3.30 0.75  
    T + Rv 150°C
    T + Rv 575°C
    1150
    850
    950
    700
    14
    19
    Key to heat treatment symbols
    Solution treated H Annealed R
    Thermo-mechanical treatment TM Quenched and tempered T+RV
    Sub-zero treatment F Solution treated and aged H+V

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  • Through hardening steels
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  • Steels for nitriding
  • Steels for special applications