The 400 series covers ferritic grades such as 409 and 430, which are used where magnetic response and low cost matter more than corrosion resistance, and martensitic grades such as 410 and 420, which can be hardened by heat treatment for wear and cutting applications. Containing little or no nickel, they are considerably cheaper and more price-stable than austenitics.
Pitting resistance equivalent. Higher resists chlorides better.
Indexed to 304. Indicative, for specification triage.
Rajgranth Metal & Alloys manufactures, stocks, supplies and exports 400 Series Stainless Steel circles (UNS S40900 / S41000 / S43000) from Mumbai. Ferritic and martensitic chromium grades. Magnetic, nickel-free, hardenable. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
The 400 series covers ferritic grades such as 409 and 430, which are used where magnetic response and low cost matter more than corrosion resistance, and martensitic grades such as 410 and 420, which can be hardened by heat treatment for wear and cutting applications. Containing little or no nickel, they are considerably cheaper and more price-stable than austenitics.
400 Series Stainless Steel is also designated UNS S40900 / S41000 / S43000, EN 1.4512 / 1.4006 / 1.4016, AISI 409 / 410 / 420 / 430, JIS SUS410 / SUS430 and Werkstoff X6Cr17 / X12Cr13. Quote the designation your specification uses and we will supply to it.
Low cost and insulated from nickel price movement, Martensitic grades harden by heat treatment, Good resistance to chloride stress corrosion cracking and Magnetic, where that is a functional requirement. It is magnetic, with fair weldability and good machinability, and is used in continuous service in air up to about 815 °C.
Lower general corrosion resistance than austenitics, Poor low-temperature toughness — ductile to brittle transition, Limited weldability, with grain growth in the heat-affected zone and Restricted formability relative to 304. We state these plainly so the grade is chosen for the right service.
Our published range covers diameter 50 mm, 2000 mm, thickness 0.3 mm, 20 mm and edge Sheared, Machined, Deburred. Standards include ASTM A240 / ASME SA-240 and EN 10088-2. Finishes and conditions include No. 1, 2B, BA, No. 4 and Mirror.
automotive exhaust systems, cutlery and blades, pump and valve internals, domestic appliance components and furnace and boiler parts. Typical industries: automotive, power & energy, valves & pumps and plant engineering. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.
Material is supplied with documentation, tested in house across 18 listed testing facilities, and covered by our ISO 9001:2015 quality management system. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
Send the size, quantity and standard. We will confirm availability against stock and come back with price.
