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Find below the search results for the material you've specified. Please note here this information is NOT to be used for design purposes, and in no event shall MSO be liable for any damages arising from the misuse of this information
Below is a comprehensive list of our alloys arranged by type. More detailed information can be found on each alloys specific page. All of our products are purchased to normal industry standards and come with material test reports (MTR) also known as material certifications.
409 is an alloy designed principally for the automotive exhaust industry, although it has been used successfully in other industrial applications. It combines good elevated temperature corrosion resistance with medium strength, good formability and overal.
Automobile mufflers, catalytic converters, tailpipes, farm equipment, structural supports and hangers, transformer cases, diamond tread plate and shipping containers.
Machining this alloy produces tough, draggy chips with heavy build-up. While this alloy can be machined in the annealed condition, it tends to perform better in the cold drawn or heat treated condition.
This alloy is quite ductile in the annealed condition and can be easily formed using all commonly employed practices. Experienced fabricators report that it is similar in formability to soft carbon steel.
409 is designed to suitably resist the attack of internal combustion engine condensates in both liquid and vapor phases. It is similar in corrosion resistance to 410 stainless. It will form surface rust rapidly, so is not recommended for applications.
Can be successfully welded employing SMA, GMA and GTA processes. When not used in a high temperature environment, filler metal AWS ER309 is acceptable for use. For stronger, more resilient welds at high temperature, use weld filler such as 409 Cb, AWS ER4
Forging, heading and other hot working should follow uniform heating to 2100-2300 F (1149-1260 C). Rapid cooling is necessary to attain maximum corrosion resistance in finished parts.
Heat to 1500-1600 F(816-871 C) then rapidly heat to 1900-2050 F(1038-1121 C). Do not soak at this temperature and do not work at temperatures below 1500 F(816 C). Air cool forgings.
Despite a rather low work hardening rate, this alloy can be easily formed using most common methods.
Soak material at 1200-1400 F(649-760 C) and air cool.
This alloy is not hardenable by heat treatment.
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