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Stainless Steel 304L Flat Bar

Stainless steel 304l flat bar specifications

What are the common applications of Stainless Steel 304L Flat Bar, Hex Bar, and Square Bar?

The minuscule carbon content (0.03%) lends it desirable properties like better corrosion resistance. A stainless steel 304L flat bar works extensively in food processing and chemical equipment, adapting to corrosive dairy and wine-making applications. An SS 304L hex bar also works in the architecture, automotive, construction, and dyeing sectors.

Manufacturers produce these products in different sizes and shapes, like hexagonal, flat, and rounded. An ASTM A 240 SS flat bar occupies multifaceted roles in transport, heat exchangers, cement, fasteners, and water filtration.

Stainless steel 304l hex bar stockists in Mumbai


Specification of stainless steel 304l flat bar

Specifications Size Finish
ASTM A276, A479 / ASME SA276, SA479 3.17mm to 350 mm Bright, polish & black.
Condition Tolerance Services
Cold drawn & polished cold drawn, centreless ground & polished h8, h9, h10, h11, ASTM A484, DIN 1013. Machining, heat treatment, anneling, cutting, bending
Technique American standards Applications
Cold rolled / hot rolled ASTM , AISI, DIN, EN, GB, JIS Construction, industrial

We are the top 7 ASTM A 240 SS flat bar supplier in India, check applications

How can Stainless Steel 304 Flat Bar, Hex Bar, and Square Bar be fabricated using the latest manufacturing techniques and equipment?

Fabrication, or changing the raw material into the desired component, like a UNS S30403 AISI 304L square bar, can involve several steps, like forming, machining, etc.

For example, machining uses tools like lathes to shave away metallic parts to get the required shape. The latest technologies in this field use CNC machinery to automate, speed up, and improve productivity. Manufacturers also use water jet and laser cutting to produce an SS 304l ASME SA240 hex bar.

We believe in the power of 3D CAD/CAM applications and integrated quality control for fabrication. A WNR 1.4306 square bar also benefits from a skilled team, incorporating modern equipment and professional expertise for faster, higher-quality results.

Types of SS 304l bar


Stainless steel 304l flat bar

Stainless steel 304l flat bar

SS 304l hex bar

SS 304l hex bar

SS 304l square bar

SS 304l square bar

Stainless steel 304l rectangular bar

Stainless steel 304l rectangular bar

Looking for UNS S30403 AISI 304L square bar manufacturer in India for urgent delivery? check the latest online price list

How are Stainless Steel 304L Flat Bar, Hex Bar, and Square Bar polished to achieve a smooth surface finish?

Architecture and food processing applications demand a smooth, polished surface for aesthetic and sanitary reasons. A stainless steel 304L square bar can undergo polishing using an abrasive (grit-based) attached to the work wheel. The degree of aggression and the direction determine the final polish.

Other techniques to polish a UNS S30403 SS 304L square bar involve a polishing compound or sandpaper.

Notably, buffing is a separate process and involves a loose abrasive. It has much lower in harshness and uses a medium-grit abrasive to create a lustrous finish on an ASTM A 240 UNS S30403 304L flat bar.


C Si Mn P Cr S Ni
0.08 max 0.75 Max 2 max 0.045 max 18 - 20 0.030 max 8 - 11
To check the chemical and mechanical properties of SS 304l ASME SA240 hex bar, contact us

Mechanical properties of SS 304l hex bar


Grade Density Tensile strength Melting points Elongation Yield strength (0.2% offset)
SS 8.0g/ cm3 PSI-75000 (MPa-515) 1400°C (255°F) 35% PSi-30000 (MPa-205)
To know more about the sizes and wall thicknesses of ASTM A 240 UNS S30403 304L flat bar, check our technical data sheets

Equivalent grade of ss 304l square bars


Standard Werkstoff nr. UNS JIS BS GOST AFNOR EN
SS 1.4301 S30400 SUS 304 304S31 08X18H10 Z7CN18-09 X5CrNi18-10

Sizes of stainless steel 304l flat bar


METRIC STAINLESS STEEL FLAT BAR (mm) IMPERIAL STAINLESS STEEL FLAT BAR
50 X 20 mm 12 X 3 1.1/2" x 3/4" 1/2" x 1/8"
50 X 25 mm 12 X 6 1.1/2" x 1" 1/2" x 3/16"
50 X 12 mm 8 X 5 1.1/2" x 1/2" 3/8" x 1/8"
60 X 3 mm 15 X 3 2" x 1/2" 5/8" x 5/16"
60 X 5 mm 15 X 5 2" x 5/8" 3/4" x 3/8"
50 X 20 mm 12 X 3 1.1/2" x 3/4" 1/2" x 1/8"
60 X 8 mm 15 X 10 2" x 1.1/2" 1" x 1/4"
60 X 10 mm 16 X 8 2.1/2" x 3/8" 1" x 5/16"
60 X 12 mm 20 X 3 2.1/2" x 1" 1" x 1/2"
60 X 6 mm 15 X 6 2" x 3/4" 1" x 3/16"
50 X 40 mm 12 X 10 1.3/4" x 1.1/4" 1/2" x 1/4"

Weight chart of ASTM A 240 SS 304l flat bar


Stainless steel 304L flat bar
Size(mm) Wt / mtr (kgs ) Wt / fit (kgs)
18 2.59 0.79
16 2.05 0.62
20 2.49 0.76
25 5.00 1.52
22 3.87 1.18
28 6.27 1.91
32 8.19 2.50
30 7.20 2.19
36 10.37 3.16
40 12.80 3.90
38 11.55 3.52
45 16.20 4.94
56 25.08 7.65
50 20.00 6.10
65 - -
60 - -
70 - -
90 - -
75 - -
100 - -
80 - -

Features of UNS S30403 AISI 304L square bar


  • Tighter tolerances
  • Smooth & better surface finish
  • Improved straightness
  • Higher tensile strength
  • Better mechanical properties
  • Economical price compared to hot rolled flat bar