Stainless Steel Alloy 440

We produce ASTM/ASME Grade 304, Grade 304L,304h, 316, 316L, 316H, 316TI, 321, 321H, 309S, 309H, 310S, 310H, 410S, 2205, 904L, 2507, 254, gh3030, 625, 253MA, S30815, 317L, Type 317, 316lN, 8020, 800, 800H, C276, S32304 and others special requirement stainless steel grade.

All grades could be simply machined of their annealed state, in addition they offer resistance to mild acids, alkalis, meals, fresh water, and air. Austenitic grades corresponding to 316 might sometimes be used for knife making, however, austenitic grades are generally not able to be hardened sufficient to ensure a lasting edge. Low carbon versions of austenitic stainless-steel, corresponding to 304L, should be avoided when making knives unless corrosion resistance is the main concern and blade life is secondary. One tool metal grade that is used as a knife materials is A2.

Martensitic Stainless Steel Bar

When put under heat remedy it attains the highest hardness ranges of any grade of stainless steel. Type 440 Stainless Steel, which comes in 4 different grades, 440A, 440B, 440C, 440F, provides good corrosion resistance together with abrasion resistance.

M2 is a device metal that’s wonderful at retaining a knife edge, however it can be too brittle for some functions. 440C is a four hundred sequence stainless-steel, and is the best carbon content material from 400 stainless steel sequence. It is normally heat treated to achieve hardness of 58–60 HRC. It is a bearing steel, and used in rolling contact stainless bearings, e.g. ball and curler bearings.

Delivery time��7 to 15 days, depends on the quantity

• Edge retention in precise slicing tests exceeded blades made of the 420 and 440 collection of stainless steels.
• Stainless metal knives are normally made out of ferritic or martensitic stainless steels.
• Other alloying components contribute to grain refinement which enhance blade power and edge toughness and also enable for a finer, sharper edge.
• The balance of carbon and chromium content give it a high degree of corrosion resistance and also spectacular physical traits of power and edge holding.

Our stainless production range

Steels used for knife blades are enhanced with further elements and are referred to as alloy steels. It is these additions that give various kinds of metal their particular properties. Alloy steels which have additions to make them corrosion-resistant are labeled stainless steels, and these are the steels most incessantly used in making knife blades.

High carbon, excessive chromium steel was developed as an alternative choice to excessive pace steel in England in the early 20th century. These steels have been similar to the modern D3 tool steel with very excessive carbon (2.2%). The carbon was decreased to 1.5%, and additions of Mo and V were made to enhance the toughness and hardenability of the steel which was in use by 1934. This metal became what we know as D2, which is popular as a die steel.

Its very excessive carbon content is answerable for these traits, which make 440C notably suited to such functions as ball bearings and valve components. 1055 metal is right on the border between a medium and a excessive carbon metal, with a carbon content between 0.50%-0.60% and with manganese between zero.60%-zero.90% as the only different part. The carbon content and lean alloy make this a shallow hardening steel with a quenched hardness between Rc depending on actual carbon content material.

Steel Nomenclature

The Carbon content, combined with the excessive Chromium content material, supplies good abrasion resistance and edge-holding. This steel is to not be confused with normal 420 stainless steel. 420HC is a superb general function knife metal when heat-treated with our proprietary Paul Bos warmth-deal with process. Type 440 Stainless Steel, as generally known as “razor blade metal,” is a hardenable high-carbon chromium steel.

We have thousands tons stock of stainless steel sheet and coil with various size and grade,mainly include austenitic stainless steel, martens stainless steel (including precipitation hardened stainless steel sheet & coil), ferritic stainless steel, and duplex stainless steel.

Characteristics of Stainless Steel Sheet and Plate:
High corrosion resistance
High strength
High toughness and impact resistance
Temperature resistance
High workability, including machining, stamping, fabricating and welding
Smooth surface finish that can be easily clean