Duplex 31254/6MO, Hardened Alloys & Silver Foil

MP35N® alloy steel bar is a nickel, chromium, cobalt alloy

MP35N® alloy steel bar is a nickel, chromium, cobalt alloy. This material is non-magnetic, has an extremely high tensile giving both excellent strength as well as good ductility. In addition this metal also has excellent corrosion resistance to some mineral or bench acids These include sulphuric acid, hydrochloric acid and nitric acid. (It may be wise to check with Brindley Metals or the manufacturer prior to ordering as hot solutions or extremely high concentrations of acids may need a little further advice.
This alloy has a maximum 398 degree C service temperature.
MP35N® is used in a wide array of industries when its critical a component needs to resist stress and crevice corrosion. The material can be utilised within industries such as Petro-chemical, Automotive This alloy is typically work-strengthened and aged to obtain strength levels of 260 to 300 ksi.
We typically supply this material in round bar and finished components including specialised bolts and fasteners.

Chemical Analysis

  • Carbon (C) 0.02%
  • Manganese (MN) 0.15% max
  • Phosphorus (P) 0.015% max
  • Sulphur (S) 0.010% max
  • Silicon (Si) 0.015% max
  • Chromium (CH) 19.00 - 21.00%
  • Nickel (Ni) 33.00 - 37.00%
  • Molybdenum (MO) 9.00 - 10.50%
  • Cobalt (CO) Balance
  • Titanium (TI) 1.00% max
  • Boron (B) 0.010%
  • Iron (FE) 1.00% max

MP35N® is a registered trade mark of SP Technologies

Did you know that Cobalt is a silver in colour and as a compound has been used to create a blue glaze and was believed to have been used by ancient civilisations. More recently the element has also been used by Modern medicine in the detection of cancer. The metal itself is rarely mined but is usually recovered as a by-product when mining Nickel and other metals.

This data sheet has been written by Brindley Metals Welshpool Ltd 2019 © and cannot be copied without written permission.

The above information is given as a useful guide only, specifiers and producers must always refer to the full material Specification.

Hardened Alloys & Silver Foil

Aluminium Sheet Metal

Duplex 31803/F51

Higher tensile and yield strength than conventional stainless grades with better corrosion resistance – applications include special fixings/fasteners.

Super Duplex 31254/6MO

Valves & Petro chemical industry.

Precipition Hardened Alloys

17/4PH –15/5PH -13/8PH grades used in motor sport & general engineering, hardenable alloys.

Nickel-Colbalt MP35N

This is a “super” alloy that has a unique combination of strength, toughness ductility an corrosion resistance. Used in formula one cars & aircraft quality.

Nickel alloys

Includes 625/700/800/825 grades – Specialist petrochemical grades with high strength and corrosion resistance.

Silver Foil

99.99% Pure silver annealed oxygen free
Used in advanced electronics applications

Titanium bar & tube

Grades offered Titanium grade 2, grade 4 and grade 9. Very light and tough material,specialist sub-sea applications, sensors and monitoring equipment.


We provide the Best Metal service Link in industry