Sae Steel Grades

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.

Most knives today are made from some form of stainless-steel. Stainless steel is made by adding 12% or more chromium to the alloy. It is slightly harder to work with and sharpen, however it has the advantage of corrosion resistance. Because of this, it’ll hold an edge longer in wet circumstances.

The steadiness of carbon and chromium content material give it a high degree of corrosion resistance and in addition impressive physical traits of power and edge holding. Edge retention in precise cutting exams exceeded blades made of the 420 and 440 series of stainless steels.

Alloy 420 is a hardenable, martensitic stainless-steel that may be a modification of Alloy 410. Similar to 410, it contains a minimum of 12% chromium, just enough enough to give corrosion resistant properties.

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Martensitic Stainless Steel 420,

  • Edge retention in precise cutting checks exceeded blades manufactured from the 420 and 440 collection of stainless steels.
  • The stability of carbon and chromium content material give it a excessive diploma of corrosion resistance and also spectacular physical characteristics of energy and edge holding.
  • Other alloying parts contribute to grain refinement which enhance blade power and edge toughness and also enable for a finer, sharper edge.
  • Another put on resistant materials is Stellite, a cobalt alloy with about 30% chromium, three% or much less iron and 1 to three% of other parts.

Our stainless production range

The HC stands for “excessive carbon” and it may be delivered to the next hardness than regular 420 and should not be mistaken for it. Buck Knives and Gerber Knives use 420HC extensively.420A (420J1) and 420B ( 420J2 ) are economical, highly corrosion resistant stainless-steel grades. Knife producers use this material in finances knives, also in diving knives as a result of its excessive resistance to corrosion. 440A is a comparatively a low value, highly corrosion resistant chrome steel. It could be very immune to corrosion and is among the most typical stainless alloys used for knife making.

Which is harder martensitic or austenitic?

420 has more carbon than 410, but less than 440. As such it is softer than 440, but has a higher toughness.

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In the annealed situation, 420 is comparatively straightforward to machine, but if hardened to above 30 HRC, machining turns into tougher. Fabrication should be by methods permitting for poor weldability and normally enable for a last harden and mood warmth therapy.

The term surgical stainless-steel is meaningless, because there may be a couple of stainless steel used for surgical devices. Other components added to steel to improve hardness, toughness and put on resistance are cobalt, manganese, molybdenum, nickel and vanadium.

Semi-stainless Steels

Other alloying elements contribute to grain refinement which enhance blade power and edge toughness and likewise permit for a finer, sharper edge. Another wear resistant materials is Stellite, a cobalt alloy with about 30% chromium, three% or less iron and 1 to three% of other components. Since it incorporates so little iron, it is technically not metal however a cobalt-chromium alloy.

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

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