409 stainless steel is a hardenable martensitic stainless steel alloy. Unlike austenitic grades
it can be heat treated ("quench and temper") to generate high strength with good ductility.
409 alloy is required when strength, hardness and wear resistance is required with some
Due to the hardening capabilities of this steel, other properties and the resulting
performance of this material are somewhat compromised. The alloy can only effectively be
used in mildly corrosive environments. The operating temperature range is limited a) a loss
of strength by over tempering at elevated temperatures and b) a loss of ductility at sub-zero
Type 409 is officially a stainless steel but characteristically the material is actually a compromise of high carbon steel alloy(which promotes wear resistance) with chromium stainless steel (which promotes corrosion resistance).
This steel is ideal for use in the manufacture of highly stressed parts found in a variety of industries including petrochemical, automotive and power generation.
Specifications: ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
Sizes (Seamless): 1/2" NB - 24" NB
Sizes (ERW): 1/2" NB - 24" NB
Sizes (EFW): 6" NB - 100" NB
Background of 410 Stainless Steel Pipes and Tubes
Grade 409 is the basic martensitic stainless steel; like most non-stainless steels it can be hardened by a "quench-and-temper" heat treatment. It contains a minimum of 11.5 per cent chromium, just sufficient to give corrosion resistance properties. It
achieves maximum corrosion resistance when it has been hardened and tempered and then polished. Grade 409 is a general purpose grade often supplied in the hardened, but still machinable condition, for applications where high strength and moderate heat and corrosion resistance are required.
MAIN PRODUCTION STANDARDS:
|EN||EN10216-5 , EN10216-2|
|DIN||DIN 17456 , DIN 17458|
|ASTM||ASTM A312, A213, A269, A511, A789, A790 ETC|
|GOST||GOST 9941 , GOST 5632|
|JIS||JIS G3459 , JIS G3463|
|GB||GB/T14975,GB/T14975, GB13296, GB5310, GB9948|