1.4306 Stainless Steel Casting

1.4306 Stainless Steel Casting

17-4 PH Stainless Steel Investment Castings Products Product Description and Process 17-4 PH Stainless Steel Investment Castings Products Production process: lost wax (silica sol) investment castings Weight range: from 10 grams to 30 kilograms Surface treatment process: passivation treatment...

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17-4 PH Stainless Steel Investment Castings Products

Product Description and Process

17-4 PH Stainless Steel Investment Castings Products

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 Castings Corrosion Resistance

Excellent in a wide range of atmospheric environments and many corrosive media. Subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 60 °C. Considered resistant to potable water with up to about 200 mg/L chlorides at ambient temperatures, reducing to about 150 mg/L at 60 °C.


Stainless Steel Castings Heat Resistance

Good oxidation resistance in intermittent service to 870 °C and in continuous service to 925 °C. Continuous use of 304 in the 425-860 °C range is not recommended if subsequent aqueous corrosion resistance is important. Grade 304L is more resistant to carbide precipitation and can be heated into the above temperature range.

Grade 304H has higher strength at elevated temperatures so is often used for structural and pressure-containing applications at temperatures above about 500 °C and up to about 800 °C. 304H will become sensitized in the temperature range of 425-860 °C; this is not a problem for high temperature applications, but will result in reduced aqueous corrosion resistance.


Stainless Steel Castings Heat Treatment

Solution Treatment (Annealing) - Heat to 1010-1120 °C and cool rapidly. These grades cannot be hardened by thermal treatment.


Stainless Steel Castings Welding

Excellent weldability by all standard fusion methods, both with and without filler metals. AS 1554.6 pre-qualifies welding of 304 with Grade 308 and 304L with 308L rods or electrodes (and with their high silicon equivalents). Heavy welded sections in Grade 304 may require post-weld annealing for maximum corrosion resistance. This is not required for Grade 304L. Grade 321 may also be used as an alternative to 304 if heavy section welding is required and post-weld heat treatment is not possible.


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