430 Stainless Steel Casting

430 Stainless Steel Casting

430 Stainless Steel Castings and Precision Machining Parts Product Description and Process 430 Stainless Steel Castings and Precision Machining Parts Production process: lost wax (silica sol) investment castings Weight range: from 10 grams to 30 kilograms Surface treatment process: passivation...

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430 Stainless Steel Castings and Precision Machining Parts

Product Description and Process

430 Stainless Steel Castings and Precision Machining Parts

Production process: lost wax (silica sol) investment castings

Weight range: from 10 grams to 30 kilograms

Surface treatment process: passivation treatment

Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc.


Product Material and Uses

Normally produce with ASTM A743/A743M Grade CF8, CF8M, CF3, CF3M, ZG0Cr18Ni10, ZG0Cr18Ni9, ZG0Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti, ZG1Cr18Ni12Mo2Ti, etc.

The stainless steel casting products are widely used for auto-car components, Machinery & Pump Parts, Marine Parts, valve parts, pipe parts, etc.


Stainless Steel - Grade 304 (UNS S30400)

Chemical Formula

Fe, <0.08% C, 17.5-20% Cr, 8-11% Ni, <2% Mn, <1% Si, <0.045% P, <0.03%


Background

Grade 304 is the standard "18/8" stainless; it is the most versatile and most widely used stainless steel, available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics. The balanced austenitic structure of Grade 304 enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollow-ware and saucepans. For these applications it is common to use special "304DDQ" (Deep Drawing Quality) variants. Grade 304 is readily brake or roll formed into a variety of components for applications in the industrial, architectural, and transportation fields. Grade 304 also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections.

Grade 304L, the low carbon version of 304, does not require post-weld annealing and so is extensively used in heavy gauge components (over about 6mm). Grade 304H with its higher carbon content finds application at elevated temperatures. The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.


Key Properties

These properties are specified for flat rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications.


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