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Stainless Steel 304 Round Bar

Stainless steel 304 round bar

What are the properties of Stainless Steel 304 Flat Bar, Hex Bar, and Square Bar?

This standard 18-8 chromium-and-nickel steel grade boasts strength, low maintenance, and easy formability. A stainless steel 304 flat bar works in diverse areas like automotive, shipbuilding, defence, fabrication, and heavy earth-moving equipment.

  • This material is suitable for work hardening.
  • A UNS 30400 stainless hex bar can deliver a veritable combination of strength and wear resistance for construction projects.
  • It shows good machinability and weldability. Clients can also choose to weld without fillers.

These bars can take different shapes to address specific buyer needs, for instance, a stainless steel 304 square bar. Square components get specified similarly to round bars, but flat ones also need thickness. Hexagonal shapes offer tight tolerance and weight-bearing abilities.


ASTM A276 Type 304 Rod Manufacturer in India, Check Weight Chart

Weight chart of UNS 30400 Stainless Hex Bar


Stainless Steel Hex Bar
Hex bar size(mm) Hex bar wt/fit (kgs) Hex bar wt/mtr (kgs)
22 1.03 3.39
16 0.55 1.79
20 0.85 2.80
25 1.33 4.38
28 1.67 5.49
32 2.19 7.17
18 0.69 2.27
38 3.08 10.11
30 1.92 6.30
36 2.77 9.07
40 3.41 11.20
45 4.32 14.18
56 - -
65 - -
50 5.34 17.50
60 - -
70 - -
75 - -
100 - -
90 - -
80 - -

Find SS 304 Hex / Flat Bar in Semi-Smooth and Dull Grey Finish, View Specification

Stainless Steel 304 Round Bar Specification


A276 GR 304 Bars Price List


Dia 0.5625" SUS304 Cold Finish Rod 25MM – 80MM 0.25" SS 304 Annealed Cold Finish Round Bar 25MM – 80MM 0.25" SS 304 Annealed Cold Finish Round Bar 0.375" WNR 1.4301 Annealed Bar
4MM – 22MM 0.4375" SS 304 Cold Finish Rounds 3MM 0.5" A276 Gr 304 Annealed Bar
Price USD/ Kg $12.06 US $2.57 $2.50  US $2.57 $2.50  $4.93 US $2.79 $6.91  US $3.03 $8.44
AED/ Kg AED 44.30 AED 9.45 AED 9.17 AED 9.45 AED 9.17 AED 18.09 AED 10.25 AED 25.38 AED 11.14 AED 31.00

What is the corrosion resistance of Stainless Steel 304 Flat Bar, Hex Bar, and Square Bar?

An ASTM A 240 flat bar is well-known for consistent corrosion resistance to numerous abrasive agents, like mild acids and alkalis. Its annual corrosion rate is approximately 0.05 to 2 mm or around 0.0.55 μm.

However, an ASME SA 240 SS 304 square bar is not immune to pitting, crevice corrosion, and stress corrosion cracking at higher temperatures and chloride environments. As a rule of thumb, an SS 304 hex bar can show good oxidation resistance up to 870°C (or 925°C in continuous service) if the risk of carbide precipitation gets managed.

Types of SS 304 Rod


304 Stainless Steel Hexagon Bar

304 Stainless Steel Hexagon Bar

SS 304 bright bar

SS 304 bright bar

Inox 304 Square Bar

Inox 304 Square Bar

304 Stainless Steel Flat Bar

304 Stainless Steel Flat Bar

Stockist of ASTM A276 UNS S30400 Square Bar in Different Sizes and Custom-Cut Lengths at Factory Price, Check Size Chart

ASTM A276 Type 304 Bar Size Chart


Length 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″ 144.00″
Size 1-7/16″ 5/32″ 1-3/16″ 3/16″ 1″ 5/8″ 5/16″ 7/16″ 1/2″ 3/4″ 9/16″ 11/16″ 7/8″ 3/8″ 15/16″ 1-1/8″ 1/4″ 1-1/4″ 1/8″ 1-3/8″
Wght (mm) 0.5583 0.0065 0.377 0.009 0.267 0.104 0.0261 0.0511 0.0668 0.151 0.0845 0.126 0.204 0.0375 0.2349 0.338 0.0167 0.417 0.0042 0.5049

Which standard testing protocols are used for Stainless Steel 304 Flat Bar, Hex Bar, and Square Bar?

The core purpose of testing a DIN 1.4301 ASTM A 240 flat bar is to ensure its fitment to the application. It guarantees safety and optimal performance. So, manufacturers subject these components to spectroscopy, visual inspection, X-ray fluorescence, and ultrasonic examination.

An SS 304 flat bar also undergoes tests for tensile strength, compression, bending, and hardness (Brinell, Rockwell). Finally, the capacity to handle impact, torsion, and stress gets analysed and discussed in the MTC.

Vendors may use varying testing protocols, including NDT, manipulative techniques, and integrated quality control during production.

View AISI 304 Rectangular Bar HSN Code, Properties and Tolerance Chart

Tolerances Chart of DIN 1.4301 ASTM A 240 Flat Bar


Stainless steel 304 flat bar size

Plus

Minus

over 1″- 2″ 0.000 0.006
1/8″- 5/16″ 0.000 0.002
over 2″- 3″ 0.000 0.008
1/2″- 1″ 0.000 0.004
5/16″- 1/2″ 0.000 0.003

SS 304 Forged Bar Mechanical Properties


Grade Density Elongation Tensile strength Melting points Yield strength(0.2% offset)
SS 8.0g/ cm3 35% PSI-75000, MPa-515 1400°C (255°F) PSi-30000, MPa-205

Check WNR 1.4301 Bright Bar Chemical Composition and Country Wise Delivery Scedules Here

A276 GR 304 Bright Bars Chemical Composition




SUS 304 Round Bars Delivery Schedules


Country Name Denmark Canada Costa Rica Panama Mexico Bahamas USA
Delivery Time 40-50 60-70 days 50 40 30-40 days wrong 45-60 days

Stainless Steel 304 Cold Drawn Bar Equivalent Grade


Standard Werkstoff nr. UNS JIS BS GOST AFNOR EN
German North America Japan British Russia France European
SS 304 1.4301 S30400 SUS 304 304S31 08X18H10 Z7CN18-09 X5CrNi18-10

Frequently Asked Questions


1. What is the thickness of steel 304 flat bar?

→ 2 mm, 2.5 mm, 2.7 mm, and 3 mm

2. What is the hardness of SS 304 Rod?

→ Rockwell B hardness of 70

3. What are the characteristics of 304 stainless steel round bars?

→ Excellent corrosion resistance