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Rajgranth Metal & AlloysRAJGRANTH
Flat BarsGrade profile

304 / 304L Flat Bars

304 is the grade most stainless steel work starts from, and it is the right answer for the majority of atmospheric, water and food-contact service. The L variant caps carbon at 0.03% to prevent chromium carbide precipitation at grain boundaries during welding, which is what causes weld decay in heavier sections. Where chlorides are present, 304 pits, and the conversation should move to 316.

UNS S30400 / S30403EN 1.4301 / 1.4306AISI 304 / 304LJIS SUS304 / SUS304LX5CrNi18-9 / X2CrNi19-11

Properties

Austenitic
PREN
19

Pitting resistance equivalent. Higher resists chlorides better.

Relative cost
1.00×

Indexed to 304. Indicative, for specification triage.

Max service temp
870 °C
Magnetic
No
Weldability
Excellent
Machinability
Fair
01Product description

Stainless Steel 304 and 304L flat Bars: manufacturer, stockist and exporter in Mumbai, India

Rajgranth Metal & Alloys manufactures, stocks, supplies and exports Stainless Steel 304 and 304L flat Bars (UNS S30400 / S30403) from Mumbai. The default austenitic stainless. 18% chromium, 8% nickel, no molybdenum. 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.

What is 304 / 304L?

304 is the grade most stainless steel work starts from, and it is the right answer for the majority of atmospheric, water and food-contact service. The L variant caps carbon at 0.03% to prevent chromium carbide precipitation at grain boundaries during welding, which is what causes weld decay in heavier sections. Where chlorides are present, 304 pits, and the conversation should move to 316.

Designations

Stainless Steel 304 and 304L is also designated UNS S30400 / S30403, EN 1.4301 / 1.4306, AISI 304 / 304L, JIS SUS304 / SUS304L, GB S30408 / S30403 and Werkstoff X5CrNi18-9 / X2CrNi19-11. Quote the designation your specification uses and we will supply to it.

Why choose 304 / 304L flat Bars

Widest availability and shortest lead time of any stainless grade, Excellent formability and weldability, Good resistance to atmospheric and fresh-water corrosion and Food-contact and potable-water approved. It is non-magnetic, with excellent weldability and fair machinability, and is used in continuous service in air up to about 870 °C.

Limitations to specify around

Pits in chloride environments, including coastal air and seawater, Not suitable for sulphuric, hydrochloric or reducing acid service, Work-hardens rapidly, which makes heavy machining slow and Non-L variant risks sensitisation in welded sections above 6 mm. We state these plainly so the grade is chosen for the right service.

304 / 304L flat Bars: sizes, standards and finishes

Our published range covers thickness 3 mm, 60 mm, width 10 mm, 300 mm, section Flat, Angle, Channel, Square and length 3 m, 6 m (Customised length per requirement). Standards include ASTM A276, ASTM A479 / ASME SA-479 and EN 10088-3. Finishes and conditions include Hot rolled, Cold drawn, Polished and Black.

Applications and industries

food and dairy processing, architectural and structural trim, potable water systems, general process piping, heat exchanger tube and fasteners and machined parts. Typical industries: dairy & food, pharmaceutical, plant engineering and automotive. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.

Buy 304 / 304L flat Bars from Rajgranth

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.

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01Specification

304 / 304L flat bars — available range

Dimensional range

04 rows
Thickness
3 mm60 mm
Width
10 mm300 mm
Section
FlatAngleChannelSquare
Length
3 m6 m

Customised length per requirement

Surface finishes

04
  • Hot rolled
  • Cold drawn
  • Polished
  • Black

Standards

03
  • ASTM A276
  • ASTM A479 / ASME SA-479
  • EN 10088-3

Need 304 / 304L flat bars?

Send the size, quantity and standard. We will confirm availability against stock and come back with price.

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