• Martensitic Stainless Steel

We are the leading Supplier in

  • SS 410
  • SS 420
  • SS 416
  • SS 431
  • SS 440 C

Martensitic stainless steel is a good choice for a variety of applications because of its durability, strength, and corrosion resistance. The composition and properties of martensitic steel give it advantages over other types of steel in various industrial functions.

Due to its chemical composition, heat and aging treatments can lead to martensitic steel being hardened and strengthened. These treatments make martensitic steel an ideal option when manufacturing mechanical valves and instruments, turbine parts, medical instruments, and other applications and products.

Composition of Martensitic Steel

Chromium usually accounts for 11.5-18% of the composition of martensitic steel,  along with 1.2% carbon and nickel. While the lower nickel content makes it less corrosion resistant in comparison with other types of stainless steel, the high percentage of carbon results in the steel having a molecular structure that is particularly robust.

Manganese, nickel, and molybdenum are among the other alloying elements in martensitic steel.

  CHEMICAL COMPOSITION OF STAINLESS STEEL(IN%)
AISI C S P Mn Si Cr Mo            Max Ni OTHER MAX
Max Max Max Max Max  
409 0.08 0.045 0.045 1.00 1.00 10.5-11.7 – 0.50 TI 6xC-0.75
410S 0.08 0.030 0.040 1.00 1.00 11.5-13.5 – 0.60 –
410 0.15 0.030 0.040 1.00 1.00 11.5-13.5 – – –
416 0.15 0.150 0.060 1.25 1.00 12.0-14.0 – – ZR OF MO-0.60
420 Min 0.15 0.030 0.040 1.00 1.00 12.0-14.0 – – –
430 0.12 0.030 0.040 1.00 1.00 16.0-18.0 – 0.750 –
430F 0.12 Min 0.15 0.060 1.25 1.00 16.0-18.0 0.60 – –
431 0.20 0.030 0.040 1.00 1.00 15.0-17.0 – 1.25-2.50 –
     C=CARBON   Si=SILICON     Mn=MANGANESE    P=PHOSPHOROUS   S=SULPHUR    Cr=CHROMIUM   Mo=MOLYBDENUM
     Ni=NICKEL    N=NITROGEN   Zr=ZIRCONIUM   Ti=TITANIUM   Cb=COBALT   Ta=TANTALUM    AI=ALUMINIUM

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