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Selection points of 400 series stainless steel

A few things to consider when choosing 400 grade stainless steel:
Stainless steel, especially 400 series stainless steel, is one of the most advantageous of all stainless steel grades. Known primarily for its abrasion resistance, the diversity of this series allows it to be adapted to the requirements of a wide variety of industry applications. With so many options in the 400 series, careful selection of the right product is required.

Applications for 400 series stainless steel
Corrosion resistance, stain resistance, low maintenance and cost effectiveness make it a versatile material that can be used in a variety of industries. Some examples of industry applications include.

Agricultural equipment
Automotive exhaust system components, mufflers and heat exchangers
Axles, fasteners and shafts
Food industry equipment
Hardware equipment
Motor shafts
Surgical cutting tools
Various wear resistant applications such as bearings, knives and razor blades

FERRITIC VS MARTENSITIC STAINLESS STEELS
400-grade stainless steel falls into two families – ferritic and martensitic, differing based on the structure of the materials.

Ferritic Stainless
Ferritic stainless alloys (specifically grades 430 and 434) contain up to 27% chromium and no significant nickel content, which reduces corrosion resistance but is ideal for high-temperature applications.

Martensitic Stainless
Martensitic stainless alloys (including both 400 and 500 series) offer increased hardness and can be hardened by a combination of both cold and heat treatments. These alloys contain between 12-14% chromium, up to 1% molybdenum, and no significant nickel content. Martensitic alloys have lower corrosion-resistance than ferritic alloys but are considered very strong.

PROPERTIES OF 400 SERIES STEEL
Cleaning Stainless Steel
Stainless steel is a metal alloy, meaning the steel is mixed with other elements such as nickel, silicon, aluminum, carbon, chromium, and molybdenum. Specifically, 400 series stainless steel is part of the “18-0” family – it’s comprised of 18% chromium and 0% nickel.

While 400 series exhibits less corrosion-resistance than 300 series under some conditions, it offers very high strength and is magnetic. Treating 400-grade with heat will harden the steel and can help improve corrosion-resistance. This series typically costs less, making it a cost-effective alternative to 300-series steel, and is well-known for providing quality surface finishes.

General Properties of 904L Stainless Steel

Alloy 904L was originally developed to resist environments containing dilute sulfuric acid. It also has good resistance to other inorganic acids such as hot phosphoric

300 Series Stainless Steel Applications

316L is recommended when the presence of carbide precipitation ranges cannot be avoided or when post-weld annealing is not an expected result. 316 stainless steel