What is 440 Stainless Steel?

The are all different levels of stainless steel. 440 Stainless steel is just another type. It is very shiny and durable. They are very good.

Grades 440A and 440B are identical except for slightly lower carbon contents (0.60 - 0.75% and 0.75 - 0.95% respectively); these have lower attainable hardnesses but slightly higher corrosion resistances. Although all three versions of this grade are standard grades, in practice 440C is more available than the A or B variants. and 440B are identical except for slightly lower carbon contents (0.60 - 0.75% and 0.75 - 0.95% respectively); these have lower attainable hardnesses but slightly higher corrosion resistances. Although all three versions of this grade are standard grades, in practice 440C is more available than the A or B variants.

Typical applications include:
• Rolling element bearings
• Valve seats
• High quality knife blades
• Surgical instruments
• Chisels.