We are a leading stockholder and global supplier of metals and plastics into Aerospace & Space, Chemical, Defence, Medical, MRO, Naval, Nuclear, Oil & Gas and Power industries.
We make high quality materials available in a fast, cost-effective and convenient package and provide a consistent supply path for all our customers.
440 stainless steel alloys include its most popular grade, 440C - a martensitic stainless steel alloy including nickel and chromium.
440C provides good corrosion resistance under atmospheric conditions and in freshwater. Good resistance is also present in mild acidic conditions and most alkalis. Optimal corrosion resistance is achieved once the alloy is hardened and tempered. Corrosion resistance is not as impressive as other austenitic stainless steel grades.
Machining is straightforward in the annealed condition, although a decent chip breaker is required. Once hardened, 440C is virtually impossible to machine. The alloy is not usually welded due to the material's high hardenability. When welding is necessary, the alloy should be pre-heated and post-weld anneal-treated. Cooling is also essential to prevent cracking.
Good wear resistance
Strongest stainless steel after heat treatment
Looking for 440C
Stainless Steel Bars?